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Sampling procedures for inspection by attributea-Part1:Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection

Basic Information

Standard ID: GB/T 2828.1-2003

Standard Name:Sampling procedures for inspection by attributea-Part1:Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection

Chinese Name: 计数抽样检验程序 第1部分: 按接收质量限(AQL)检索的逐批检验抽样计划

Standard category:National Standard (GB)

state:Abolished

Date of Release2003-09-15

Date of Implementation:2004-03-01

Date of Expiration:2013-02-15

standard classification number

Standard ICS number:Sociology, Services, Organization and management of companies (enterprises), Administration, Transport>>Quality>>03.120.30 Application of statistical methods

Standard Classification Number:Comprehensive>>Basic Subjects>>A41 Mathematics

associated standards

alternative situation:Replaces GB/T 2828-1987

Procurement status:IDT ISO 2859-1:1999

Publication information

publishing house:China Standards Press

ISBN:155066.1-20148

Publication date:2004-05-10

other information

Release date:1981-12-22

Review date:2004-10-14

drafter:Xiao Hui, Ma Yilin, Zhang Yuzhu, Liu Wen, Yu Zhenfan, Yu Jijun

Drafting unit:China National Institute of Standardization, Institute of Mathematics and Systems Science, Chinese Academy of Sciences

Focal point unit:National Technical Committee for Application of Statistical Methods and Standardization

Proposing unit:China National Institute of Standardization

Publishing department:General Administration of Quality Inspection and Quarantine

competent authority:National Standardization Administration

Introduction to standards:

This part of GB/T 2828 specifies a sampling inspection system for attributes. This part uses the term acceptance quality limit (AQL) to search. GB/T 2828.1-2003 Sampling inspection procedures for attributes Part 1: Sampling plans for batch inspection indexed by acceptance quality limit (AQL) GB/T2828.1-2003 Standard download decompression password: www.bzxz.net
This part of GB/T 2828 specifies a sampling inspection system for attributes. This part uses the term acceptance quality limit (AQL) to search. The purpose of this part is to create economic and psychological pressure on suppliers due to batch rejection, so as to encourage them to keep the process at least as good as the specified acceptance quality limit on average, while at the same time providing an upper limit to the risk of users occasionally accepting poor-quality batches.

GB/T 13263-1991 Procedure for sampling inspection by attributes of skipped lots (eqv ISO 2859-3:1993)
GB/T 3358.1-1993 Statistical terminology Part 1 General statistical terminology (corresponding to ISO 3534-1:1993)
GB/T 3358.2-1993 Statistical terminology Part 2 Statistical quality control terminology (corresponding to ISO 3534-2:1993)

Some standard content:

ICS03.120.30
National Standard of the People's Republic of China
GB/T2828.1—2003/IS02859-1:1999 replaces GB/T2828—1987
Sampling procedures for inspection by attributes
Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
(ISO2859-1:1999, IDT)
2003-09-15 Issued
People's Republic of China
General Administration of Quality Supervision, Inspection and Quarantine
2004-03-01 Implementation
Normative references
3 Terms, definitions and symbols
4 Indication of nonconformity
Acceptance quality limit (AQL)
Submission of sampled products
Acceptance and rejection
Selection of samples
Normal, tightened and relaxed inspection
Sampling plan·
Determination of acceptability
Further information
Score Number of acceptances Single sampling plan (optional) Table 1
Sample size code (see 10.1 and 10.2)
Table 2-A
Table 2-B
Table 2-C
Table 3-A
Table 3-B
Table 3-C
Table 4-A
Table 4-B
Table 4-C
Table 5 -A
Table 5-B
Table 5-C
Table 6-A
Table 6-B
Table 6-C
Table 7-A
Table 7-B
Table 7-C
Table 8-A
Table 8-B
Table 10-A
Normal inspection Sampling plan (main table) Strict inspection Single sampling plan (main table) Relaxed inspection Single sampling plan (main table) Normal inspection Second sampling plan (main table) Strict inspection Second sampling plan (main table) Relaxed inspection Second sampling plan (main table) Normal inspection Multiple sampling plan (main table) Strict inspection Multiple sampling plan (main table) Relaxed inspection Multiple sampling plan (main table) Normal inspection producer risk
Producer risk for strict inspection
Producer risk for relaxed inspection
User risk quality for normal inspection
User risk quality for strict inspection
User risk quality for relaxed inspection
User risk quality for normal inspection
User risk quality for strict inspection
User risk quality for relaxed inspection
Average inspection quality for normal inspection Upper limit of quantity (single sampling plan) Average upper limit of detection quality for tightened inspection (single sampling plan) Average sample size curve for single, double and multiple sampling (normal, tightened Table for sample size code A (single plan Table 10-B
Table for sample size code B (single plan) GB/T2828.1—2003/IS02859-1:19998
and release inspection
GB/T2828.1—2003/ISO2859-1:1999 Table 10-C
Table 10-D
Table 10-E
Table 10-F
Table 10-G
Table 10-H
Table 10-J
Table 10-K
Table 10-L
Table 10-M
Table 10-N
Table 10-P
Table 10-Q
Table 10-R
Table 10-S
Table 11-A
Table 11-B
Table 11-C
Table for sample size code C (single solution)Table for sample size code D (single solution)Table for sample size code E (single solution):Table for sample size code F (single solution)Table for sample size code G (single solution)Table for sample size code H (single solution)Table for sample size code J (single solution)Table for sample size code K (single solution)Table for sample size code L (single solution)Table for sample size code M (single solution)Table for sample size code N (single solution) Table for sample size code P (single plan) Table for sample size code Q (single plan) Table for sample size code R (single plan). Table for sample size code S (single plan) Normal inspection Single sampling plan (auxiliary main table) Secondary sampling plan (auxiliary main table
Tightened inspection
Relaxed inspection Single sampling plan (auxiliary main table) Table 12
OC curve of sampling plan (design value)
Appendix A (informative appendix)
References
Example of non-fixed sampling plan
GB/T2828.1—2003/ISO2859-1:1999GB/T2828 "Sampling Procedure for Inspection by Attributes" consists of several parts: Its expected structure and the corresponding international standards and national standards to be replaced are :
Part 1: Sampling plan for batch inspection based on acceptance quality limit (AQL) (ISO2859-1:1999, IDT: replaces GB/T2828-1987)
Part 2: Sampling inspection procedures and sampling tables for isolated batches by attributes (corresponding to ISO2859-2; replacing GB/T15239-1994) - Part 3: Sampling inspection procedures for skip batches by attributes (corresponding to ISO2859-3: replacing GB/T13263-1991) Part 4: Evaluation procedures for claimed quality levels (corresponding to ISO2859-4; replacing GB/T14437-1997, GB/T14162-1993)
Part 10: Introduction to sampling systems by attributes (corresponding to ISO2859-10) This part is GB/ Part 1 of T2828
This part of GB/T2828 is equivalent to the international standard ISO2859-1:1999 "Sampling procedures for inspection by attributes Part 1: Sampling plans for batch inspection based on acceptance quality limit (AQL)" and the technical amendment 1 to ISO2859-1:1999 issued by ISO on March 1, 2003. At the same time, the following corrections are made to the errors in the text of ISO2859-1:1999: - The curve with Ac=4 in Table 9 is removed:
In the curve with Ac=9 in Table 9, the arrow is removed; - In the curve with Ac=7 in Table 9, the arrow position is moved from 3 to 3.15; In the curves with Ac=27, Ac=30, Ac=41.Ac=44 in Table 9, the horizontal axis is changed to n multiplied by the number of unqualified products per hundred units.
This part replaces GB/T2828-1987 "Batch inspection by counting sampling procedures and sampling tables (applicable to the inspection of continuous batches)" from the date of implementation. Compared with GB/T2828-1987, the changes in the technical content of this part mainly include: changing the qualified quality level (AQL) to the acceptance quality limit (AQL); adding the content that can be used for isolated batch inspection (see 1.2); changing the transfer rules from normal inspection to relaxed inspection: allowing skip batch sampling to replace relaxed inspection if the relevant requirements are met (see 9.5); eliminating the gap between the acceptance number and the rejection number of the special wide inspection and relaxation scheme included in the relaxed inspection; adding the fractional acceptance number sampling scheme for selection: eliminating the sampling characteristic curve diagram and table of the design value sampling scheme, and adding the sampling characteristic curve diagram and table of the single sampling scheme;
adding the sampling characteristic curve of the design value of the sampling plan that does not consider the impact of the suspended inspection (see Table 12). Appendix A of this part is an informative appendix
This part is proposed by the China National Institute of Standardization. This part is under the jurisdiction of the National Technical Committee for Standardization of Statistical Methods Application. Drafting units of this part: China National Institute of Standardization, Institute of Mathematics and Systems Science of the Chinese Academy of Sciences, Ordnance Engineering College of the Chinese People's Liberation Army, Lingyun Industrial Co., Ltd. The main drafters of this part: Xiao Hui, Ma Yilin, Zhang Yuzhu, Liu Wen, Yu Zhenfan, Yu Jijun. This part was first released as a trial version in 1981, and the version released in 1987 is the first edition. 1 Scope
Attribute sampling inspection procedure
GB/T2828.1—2003/ISO2859-1:1999 Part 1: Sampling plans for batch inspection indexed by acceptance quality limit (AQL)
1.1: This part of GB/T 2828 specifies a sampling inspection system for attributes. This part uses the term acceptance quality limit (AQL) for indexing.
The purpose of this part is to create economic and psychological pressure on suppliers through batch rejection to keep their processes at least as good as the specified acceptance quality limit on average, while at the same time providing an upper limit on the risk of users occasionally accepting poor-quality batches. The sampling plans specified in this part of GB/T 2828 may be used for (but not limited to) the inspection of the following: final product:
components and raw materials:
operations;
work in process;
stock;
maintenance operations:
—data or records;
—management procedures.
1.2 These sampling plans are mainly used for continuous series of batches. The length of the series of consecutive batches is sufficient to allow the use of transfer rules (see 9.3). These rules are:
a) to provide a protection to the user by transferring to a more stringent inspection or suspending sampling inspection as soon as a deterioration in quality is detected; b) to provide an incentive to reduce inspection costs by transferring to a more relaxed inspection as determined by the responsible authority once a consistent good quality has been achieved.
The sampling plans of this part may also be used for the inspection of isolated batches, but in this case, the user is strongly recommended to consult the sampling characteristic curves of the sampling plan (see 12.1) in order to find a sampling plan that gives the desired protection. The user may also refer to the sampling plans retrieved by limit quality (LQ) given in GB/T 15239-1994. 2 Normative references
The provisions of the following documents become provisions of this part through reference in this part of GB/T 2828. For any dated referenced document, all subsequent amendments (excluding errata) or revised versions are not applicable to this part; however, parties to an agreement based on this part are encouraged to investigate whether the latest versions of these documents can be used. For any undated referenced document, the latest version applies to this part.
GB/T13263-1991 Procedure for inspection by sampling of skip batches by attributes (eqvISO2859-3:1993) GB/T3358.1-1993
Statistical terminology Part 1 General statistical terms (corresponding to IS03534-1:1993 GB/T3358.21993 Statistical terminology Part 2 Statistical quality control terms (corresponding to ISO3534-2:1993) 3 Terms, definitions and symbols 3.1. Terms and definitions The terms and definitions established in GB/T 3358.1 and GB/T 3358.2 and the following terms and definitions apply to this part of GB/T 2828. 1 GB/T 2828.1-2003/IS(2859-1:1999 Note: For convenience, some definitions of terms in GB/T 5358.8 and GR/T 3358.2 are quoted. The definitions of some terms in this part are the latest or newly defined in this part. 3. 1.1
Inspection inspection
The activity of inspecting, testing or measuring one or more characteristics of a product or service to determine whether the various properties of the product or service are qualified and to specify the requirements for comparison.
Original inspection
The first inspection of a batch in accordance with this standard: Note: It is necessary to distinguish between initial inspection and inspection of previously unaccepted or resubmitted batches. 3.1.3
Inspection by attributes Inspection by attributes Inspection based on one or a group of specified requirements, or only classifying unit products as qualified or unqualified - or only counting the number of unqualified units in the unit product.
Note: Counting inspection includes both inspection of whether the product is qualified and counting the number of unqualified units. 3.1. 4
Unit product item
can be delivered separately,
for example:
....a tangible entity;
...a certain number of units
....a service, an activity or a person:
"Any combination of the above items.
noncouformity
nonconformity
failure to meet the requirements of the specification.
difference 1, "In some cases, the specification and the user requirements (current 3.1.6) )-- so in other cases they may not be the same, or more severe, or more lenient, or the exact relationship between the two is not completely known. NOTE 2: They should usually be classified according to the severity of the nonconformity, for example: Class A is the type of nonconformity that is of most concern. In the acceptance sample, this type of nonconformity will be assigned a very small AQI value
- Class B is considered a type of nonconformity that is slightly less serious than Class A. If there is a third type (Class C) nonconformity, a Class B conformity can be assigned an AQI value that is greater than that of a Class A conformity but less than that of a Class C nonconformity. Other nonconformities are referred to in this way. Note 3: The characteristics and nonconformity classifications will affect the overall probability of acceptance of the product. Note 4: The items of nonconformity classification, the classification to which they belong and the acceptance quality limits selected for each category are the requirements for the specific situation. 3.1.6
defect
does not meet the requirements of the use period.
Note 1: When evaluating the durability of a product or service according to customary practices, the term "defect" is applicable (in contrast to the standard). Note 2: As the term "defect" has a clear meaning in the legal field, it should not be used as a general term. 3.1.7
nonconformingitems
products with one or more nonconforming items. Note: Nonconforming items are classified by the severity of the nonconformity: foodmate.net communication information 3.1.8
CH/F 2828.1—2003/1SO 2859-1:1999 A class package must be one or more qualified under the class, and may also contain class B and (or class) non-qualified products. A class contains one or more class B non-qualified products, and may also contain class C non-qualified products, but does not contain class A non-qualified products. (Sample) Percentage of non-qualified products percenfnoncenforming (iaasample) The number of non-qualified products in the sample divided by the sample size and multiplied by 100, that is: /x
Formula:
d The number of non-qualified products in the sample;
Sample size.
(Overall or batch) Percentage of non-qualified products perceutnoncanfarming (inapopulafinnnrlot) The number of non-qualified products in the whole or batch divided by the whole or batch size and multiplied by 100, 100p - 109D/N
Where,
—-defective rate
D——Number of defective products in the total or batch: N——Total quantity or batch,
Used:'The terms "percentage of defective products" in this part of B/T 2828, see 8.1. and 3.1.9 and "number of defective products per unit of product" (see 3.1.10 and 3.1.111, mainly used to replace the terms "defective rate" and "number of defective products per unit of product", C is the former is the most commonly used. 3. 1. 10
monconformitiesper100items(inasample))(sample)Number of conformities per 100 units of product
Number of nonconformities in the sample divided by the total number and multiplied by 100, that is; 100a/n
Wu:
d——Number of nonconformities in the sample;
A sample quantity.
(Overall or batch)Number of nonconformities per 100 units of productoneoaformitiesper100itemsinapopaiationertnt)Number of nonconformities in the whole or batch divided by the whole or batch and multiplied by F:100. That is: 100 = 100D7MWhere:
Number of nonconformities per unit of product:
D:Number of nonconformities in the whole or batch;
N·Number of total batch.
Note: A unit product may contain more than one conformity. 3. 1.12
Responsible authority A concept used to maintain the neutrality of this part of G1/T 2828 (mainly for specifications), regardless of whether it is being assisted by the first or second party.
Note 1: The responsible authority can be
a) the quality department of the supplier organization (first party); 5) the implementation party or the purchasing group (second party); 6) an independent verification or certification body (third party); 7) an agreement between the two parties (such as the supplier's contract document) (see Note 21. Not applicable); 8) b) or neither party. foodmate.net
Exchange information
GB/T2828.1-—2003/IS0 2859-1:1999: 2: This part of GB/T 2828 describes the responsibilities and functions of the responsible authorities (see 5.2, 6.2, 7.2, 7.3, 7.5, 7.6, 9.1, 9.3.3, H.4, 1U.1.3 and 13.1).
A certain number of products, materials or services brought together. Note: Inspection lot can be composed of several production lots or parts of production lots: 3.1.14
Batch size
The number of products in the batch.
sample sampling
individual or group of products taken from a batch and providing information about the batch: 3.1.16
sample size samplesize
the number of products in the sample.
sampling plan samplingplan
the combination of sample size used and relevant batch acceptance criteria. Note 1: A primary sampling plan is a combination of sample size, acceptance number and rejection number. A secondary sampling plan is a combination of acceptance number and rejection number of two selected samples and acceptance number and rejection number of the combined sample. Note 2: The sampling plan does not include the rules on how to draw the samples. Note 3: For this part of GB/T 2828, a distinction should be made between sampling plans (see 3.1.17), sampling plans (see 3.1.18) and sampling systems (see 3.1.192):
sampling plan sampling schemc
A combination of a sampling plan and the rules for changing from one sampling plan to another. Note, 9.3.
Sampling system simplifying system
A collection of sampling plans or sampling programs and sampling procedures. Among them, the sampling plan carries the rules for changing the sampling plan, and the sampling procedure includes the inference of selecting an appropriate sampling plan or sampling plan. H: This part of GB/T 2828 is a sampling system based on batch range inspection level and AQL retrieval. In GB/T 15239994 gives another sampling system for the sampling plan. 3.1.20
Normal inspectionnormalnspctior
A method of using the sampling plan (see 3.1.17) when the process average (see 3.1.25) is better than the acceptance quality limit (see 3.1.26). In this case, the sampling plan has acceptance criteria set to ensure that the manufacturer accepts with a high probability. Note: When there is no reason to worry that the process average (see 3.1.25) is different from a certain acceptable level, normal inspection is performed. 3. 1.21
tightened inspection tightened inspection is the use of a sampling plan with more stringent acceptance criteria than the corresponding normal inspection plan. Note: When the results of a predetermined number of consecutive batches indicate that the process average (see 8.1.25) may be inferior to the acceptance quality limit (see 3.1.25), a production inspection is carried out.
foodmate.net exchange information 3. 1. 22
GB/T2828.1—2003/IS02859-1:1999 relaxed inspection is reduced iaspection
Special application of a sampling plan with a lower cost than the normal inspection sampling plan and an acceptance criterion that is not much different from the acceptance criterion of the normal inspection sampling plan.
Note 1: The discrimination ability of a relaxed inspection is less than that of a normal inspection. Note 2: A relaxed inspection may be performed when the inspection results of a predetermined continuity number indicate that the process average (see 3.1.25) is better than the acceptance quality limit (see 3.1.29). 3.1.23
Switching score
In the case of normal inspection, an indicator used to determine whether the current inspection results are sufficient to allow transfer to effective inspection. Note: See 2.3.3
Acceptance scoreacceptance score
For a fractional acceptance number sampling plan, an indicator used to determine the acceptability of a lot. NOTE See 13.2.1.2
Process mean
The average process quality level over a specified period of time or production volume. NOTE In this part of ISO/TS 28, process mean is the quality level of the process during which it is in a state of systematic control (regardless of the number of qualified products or the number of nonconforming units produced).
Acceptance quality limit acceptance quality limit The worst process average quality level permissible when a series of batches are submitted for acceptance sampling. NOTE 2 This term is used only when there are transfer rules and temporary rules as used in Part 10 of (18/28). NOTE 2 Although products with the same quality as the acceptance quality limit may be accepted with a higher probability, the specified acceptance quality limit does not mean that the acceptance quality limit is the desired quality level. The sampling rules and transfer rules and temporary sampling inspection rules in this part of GB/T 2828 are designed to encourage the party to have a process average better than AQL. If the process average is not better than AQL, there will be a risk of transferring to production inspection and making the acceptance criteria more stringent. Once the tightened inspection is carried out, corrective actions must be taken to improve the process, which may lead to temporary sampling inspection. The user's risk quality is the corresponding level of the batch weight level or process quality level of the user's risk. NOTE: The service risk is usually specified as 10% of the limit quality inaiting. qun!ity
For a batch that is considered to be in a state of being held, in order to limit the sampling inspection to a quality level with a low probability of acceptance. 3.2 Special symbols and abbreviations
The symbols and abbreviations used in this part of GI3/T2828 are as follows: 0-acceptance number
AQL acceptance quality limit (expressed as the percentage of non-conforming products or the number of non-conforming products per unit product) AOQ-average outgoing quality (expressed as the percentage of non-conforming products or the number of non-conforming products per hundred units) AQE: average inspection quality upper limit (expressed as the percentage of non-conforming products or the number of non-conforming products per hundred units) RQ: User risk quality (expressed as percentage of defective products or number of defective products per hundred units) - number of defective products or number of defective products found in samples taken from the batch - number of defective products or number of defective products in the batch
foodmate.net exchange information 5
GB/T2828.1—2003/ISO2859-1:19991.Q Limit quality (expressed as percentage of defective products or number of defective products per hundred units) N - - batch
- sample base
- process average ||tt ||, - - quality level with probability of acceptance, here is percentage. P, - acceptance probability (expressed in percentage)
Re—number of rejections
Note: The symbol can have subscripts, and the numerical subscripts 1 to : represent the th sample to the >th sample respectively. Generally, , represents the sample size of the th sample of secondary or multiple sampling:
4 Representation of nonconformity
4.1 General
The degree of nonconformity is expressed in terms of the number of nonconforming products (see 3.1.8 and a.1.9) or the number of nonconforming products per hundred units (see 3.1.10 and 3.1.3). .1.11) indicates. Tables 7, 8 and 10 are based on the assumption that the occurrence of nonconformities is random and statistically independent. If it is known that a certain nonconformity of a product may be caused by a certain condition, which may also cause some other nonconformities, then only whether the product is a conforming product should be considered, rather than how many nonconformities the product has. 4.2 Classification of nonconformities
Because most acceptance sampling involves more than one quality attribute, and because their importance in terms of quality and (war) economic effects may be different, it is often necessary to divide the types of nonconformities according to the classification defined in 3.1.5. The number of types, the designation of nonconformity classes and the AQL selected for each class are suitable for the quality requirements of the specific occasion. 5 Acceptance quality limit (AQE)
5.1 Usage and Application This part of GB/T 2828 uses the AQL and sample size codes (see 10.2) to retrieve the required sampling plan and sampling plan. When a specified AQ value is assigned to a nonconformity or group of nonconformities, it indicates that the sampling plan will accept the vast majority of submitted lots if the quality level (percentage of nonconforming items or number of nonconforming items per 100 units of product) is not greater than the specified AQI. The provided lot sampling plan is arranged so that for a given AQI, the probability of acceptance at AQE. depends on the sample size. Generally speaking, the probability of acceptance for a large sample is higher than that for a small sample. The AQL is a parameter of the sampling plan and should not be confused with the process average that describes the level of manufacturing operation. Under this sampling system, in order to avoid excessive rejection of lots, the process average is required to be better than the AQL. NOTE: Specifying an AQI does not imply that the supplier has the right to deliberately supply any nonconforming product. 5.2 AQL The AQL used shall be specified in the contract or by the responsible department (or by the responsible department in accordance with the prescribed practice), as defined in 3.1.: Different AQLs may be assigned to groups of nonconformities or to individual nonconformities. The division of nonconformities into groups shall be adapted to the quality requirements of the particular occasion. In addition to assigning AQLs to individual nonconformities, AQLs may be assigned to groups of nonconformities. When the quality level is expressed as a percentage of nonconforming products (3.1.8 and 3.1.9), the AQL value shall not exceed 10 million nonconforming products. When expressed as the number of nonconforming products per hundred units (see 3.1.10 and 3.1.[1]), the AQL value shall not exceed 10 million nonconforming products. When the quality level is not specified, AQI values ​​up to 1100 nonconforming units per 100 units may be used. 5.3 Preferred AQI
The AQL values ​​given in the tables are referred to as the preferred AQL range. For any product, if the specified AQ. is not one of these values, the tables do not apply.
B Submission of Sampling Products
6. Composition of Lots
Products shall be assembled into identifiable lots, sub-lots or other deliverable forms (see 6.2). As far as practicable: Each lot shall consist of products of the same type, 6
foodmate.net交流资料CB/T 2828.1—2003/IS0 2859-1:1999 Grouping of products of the same grade, type, size and composition under the same basic conditions of time and space. 6.2 Provision of lots
The composition of the lot, the lot size and the manner in which each lot is presented and identified by the supplier shall be specified or approved by the responsible authority. The supplier shall provide, where necessary, adequate and suitable storage space for each lot, equipment for proper identification and removal, and personnel to transport the product.
7 Acceptance and rejection
7.1 Acceptability of lots
The acceptance of a lot shall be determined by the use of one or more sampling plans. When the results of a sampling procedure are involved, the term "not accepted" shall be used instead of "rejected". The term "rejected" shall be reserved for the appropriate action that the user may take. The term "rejected" shall be interpreted as "rejection number". 7.2 Treatment of unacceptable batches
The responsible department shall decide how to treat unacceptable batches, such batches may be scrapped, sorted (replacing or not replacing nonconforming products), returned, further specified for more specific applicable criteria, or stored as a supplementary material. 7.3 Nonconforming products
If a batch is accepted, it is authorized to reject any nonconforming products found during inspection, regardless of whether the products form part of the sample. Nonconforming products found may be reworked and replaced with conforming products. With the approval of the responsible department, they may be submitted for inspection again in the manner specified by the responsible department:
4 Classification of nonconforming or nonconforming products
For special provisions for two or more categories of nonconforming or nonconforming products, a set of sampling plans is required. Usually, these sampling plans have a common sample size: however, because each category has a different AQI, they have different acceptance numbers as shown in Table 2, Table 3 and Table 4. 7.5 Special Provisions for Fatal Nonconformities Certain types of nonconformities may be considered critical. This clause provides for special provisions for such designated nonconformities. With the approval of the responsible department, the supplier has the right to inspect each product submitted for these designated nonconformities and to reject the batch if a single nonconformity of this type is found. The responsible department also has the right to reject any batch submitted by the supplier if a batch of samples taken from the batch contains one or more nonconformities of this type. 7.6 Resubmission of Batches
If a batch is found to be unacceptable, the inspection shall be communicated to all parties. Such batches shall not be submitted again until all products have been re-inspected and re-tested and both parties are satisfied that the supplier has eliminated all nonconforming products and replaced them with conforming products, or has corrected all nonconformities. The responsible department shall determine whether re-inspection shall use normal inspection or tightened inspection and whether re-inspection shall include all types of nonconformities or only the individual types that originally caused the nonconformity.
8 Sample selection
8.1 Sample selection
The products to be sampled shall be selected by simple random sampling (see 5.7 of G3/T3358.1:1993). However, when sub-batches or strata (identified by some reasonable criteria) are used, stratified sampling shall be used. In this way, the sample size of each batch or stratum is proportional to the size of the sub-batch stratum.
8.2 Time of sampling
The samples may be taken after the batch is produced or during the batch production. In both cases, the samples shall be selected according to 8.1. .3 Second or multiple sampling
When the first or multiple sampling is used, each subsequent sample shall be selected from the remaining part of the same batch box.foodmate.net exchange information7
GB/ 2828.1—2003/ISO 2859-1:19999 Normal, Tightened and Relaxed Inspection
9.1 Start of Inspection
Unless otherwise directed by the responsible authority, the start of inspection shall be inspection with stop band inspection. 9.2 Continuation of Inspection
Unless the transfer procedure (see 9.3) requires a change in the severity of the inspection, the normal, tightened or relaxed inspection shall continue for successive batches. The transfer procedure shall be used separately for each type of nonconforming or unacceptable product. 9.3 Transfer Rules and Procedures (see Figure 1)
The current transfer shall be divided into
at least 30 minutes
The production is stable
and the responsible authority agrees to release the inspection form for acceptance.
A batch shall not be accepted
|The production is unstable
| or it is considered that the normal inspection form is quickly restored
, other circumstances justify
|9.3. 1 Normal to Strict
2 out of 5 or less consecutive batches are unacceptable
5 consecutive batches are accepted
Figure 1 Simple diagram of transfer rules
When increasing production and light production, the fat is calculated
5 batches are not accepted
The supplier has improved the quality
When normal inspection is being carried out, as long as 2 out of 5 or less consecutive batches are unacceptable in the initial inspection, the process will be transferred to the Strict Inspection. The process does not consider submitting more batches. 9.3.2 Strict to Normal
When Strict Inspection is being used, if 5 consecutive batches in the initial inspection have been considered acceptable, the process will resume normal inspection. 9.3.3 Normal to Relaxed
9, 3. 3. 1 General
When normal inspection is in use, if all of the following conditions are met, transfer to relaxed inspection should be made: 8) The current transfer score (see 9.3.3, 2) is at least 30 points: [) Production is stable:
The responsible department considers relaxed inspection desirable,
9.3.3.2 Transfer score
Unless otherwise specified by the responsible department, the transfer score should be calculated at the beginning of normal inspection. At the beginning of the positive belt inspection, the transfer score is set to 0. The transfer score should be updated after each subsequent batch is inspected. #) Single sampling plan
1) When the acceptance number is equal to or greater than 2, if the batch is accepted after AQI, level 1, then add 3 points to the transfer score; otherwise, reset the transfer score to 0
When the acceptance number is or ", if the batch is accepted, add 2 points to the transfer score; otherwise, reset the transfer score to 0.
foodmate.net
Exchange informationThe probability of acceptance at a given point depends on the sample size. Generally speaking, the probability of acceptance for a large sample is higher than that for a small sample.
AQL is a parameter of the sampling plan and should not be confused with the process average that describes the level of manufacturing operation. Under this sampling system, in order to avoid excessive batch rejection, the process average is required to be better than the AQL. NOTE: The assignment of an AQL does not imply that the supplier has the right to intentionally supply any nonconforming product. 5.2 AQL Specification
The AQL used is specified in the contract or by the responsible department (or by the responsible department in accordance with the prescribed practice), as defined in 3.1.: Different AQLs can be assigned to groups of nonconforming products or individual nonconforming products. The division of nonconforming groups should be adapted to the quality requirements of the specific occasion. In addition to assigning AQLs to individual nonconformities, AQLs may be assigned to groups of nonconformities. When the quality level is expressed as a percentage of nonconforming items (3.1.8 and 3.1.9), the AQL value shall not exceed 10 million nonconforming items. When the quality level is expressed as the number of nonconforming items per 100 units (see 3.1.10 and 3.1.[1]), AQL values ​​up to 1100 nonconforming items per 100 units may be used. 5.3 Preferred AQLs The AQL values ​​given in the table are referred to as the preferred AQL series. If an AQL other than one of these values ​​is assigned to any product, the table does not apply. B. Submission of Sampling Product 6. Composition of Lots Products shall be assembled into identifiable lots, sublots or other deliverable forms (see 6.2). As far as practicable: Each batch shall consist of products of the same type, grade, type, size and composition, prepared under the same basic conditions of time and space. 6.2 Provision of batches The composition of the batch, the batch size and the manner in which each batch is presented and identified by the supplier shall be specified or approved by the responsible authority. If necessary, the supplier shall provide adequate and suitable storage space for each batch, equipment for proper identification and sampling, and personnel for transporting the product.
7 Acceptance and non-acceptance
7.1 Acceptability of batches The acceptance of batches shall be determined by the use of one or more sampling plans. When referring to the results of the sampling process, the term "reject" is used instead of "reject". The term "reject" shall be used to indicate the appropriate action that the user may take. The term "reject" is used to indicate the appropriate action that the user may take. 7.2 Treatment of unacceptable lots The responsible department shall decide how to deal with unacceptable lots. Such lots may be scrapped, sorted (replacement or nonconforming items), returned for further specification against more specific applicable criteria, or kept as a supplementary information. 7.3 Nonconforming products If a lot is accepted, it is authorized to reject any nonconforming products found during inspection, regardless of whether the product forms part of the sample. Nonconforming products found may be reworked and replaced with conforming products. With the approval of the responsible department, the product may be submitted for inspection again in the manner specified by the responsible department:
. 4 Classification of nonconforming or unqualified products
For special provisions for two or more types of nonconforming or unqualified products, a set of sampling plans is required. Usually, this sampling plan has a common sample size: However, because each type has a different AQI, they have different acceptance numbers as shown in Table 2, Table 3 and Table 4. 7.5 Special reservations for fatal nonconforming types Certain types of nonconformities may be considered important. This clause specifically stipulates special provisions for such designated nonconformities. With the consent of the responsible department, each product submitted for these designated nonconformities has the right to be inspected carefully, and the right to refuse to accept the batch as long as a nonconformity of this type is found. At the same time, the responsible department shall have the right to specify the nonconforming category and shall not accept any batch submitted by the supplier if it is found that one or more nonconforming items of this type are included in the samples taken from a batch. 7.6 Resubmission of batches
If a batch is found to be unacceptable, it shall be communicated to all parties. Such batches shall not be submitted again until all products have been retested and retested and both parties are satisfied that the supplier has eliminated all nonconforming products and replaced them with qualified products, or has corrected all nonconformities. The responsible department shall determine whether normal inspection or tightened inspection shall be used for retesting, and whether the retesting shall include all nonconformities of the same category or only the individual types that were originally nonconforming.
8 Sampling of samples
8.1 Selection of samples
The products to be used as samples shall be selected according to simple random sampling (see 5.7 of G3/T3358.1:1993). However, when there are sub-batches or strata (identified by some reasonable criteria), stratified sampling is used. In this way, the sample size of each batch or stratum is proportional to the size of the sub-batch stratum.
8.2 Time of sampling
The sample can be taken after the batch is produced or during the batch production. In both cases, the sample should be selected according to 8.1. .3 Second or multiple sampling
When the first or multiple sampling is used, each subsequent sample should be selected from the remaining part of the same batch box. foodmate.net exchange information 7
GB/ 2828.1—2003/ISO 2859-1:19999 Normal, Tightened and Relaxed Inspection
9.1 Start of Inspection
Unless otherwise directed by the responsible authority, the start of inspection shall be inspection with stop band inspection. 9.2 Continuation of Inspection
Unless the transfer procedure (see 9.3) requires a change in the severity of the inspection, the normal, tightened or relaxed inspection shall continue for successive batches. The transfer procedure shall be used separately for each type of nonconforming or unacceptable product. 9.3 Transfer Rules and Procedures (see Figure 1)
The current transfer shall be divided into
at least 30 minutes
The production is stable
and the responsible authority agrees to release the inspection form for acceptance.
A batch shall not be accepted
|The production is unstable
| or it is considered that the normal inspection form is quickly restored
, other circumstances justify
|9.3. 1 Normal to Strict
2 out of 5 or less consecutive batches are unacceptable
5 consecutive batches are accepted
Figure 1 Simple diagram of transfer rules
When increasing production and light production, the fat is calculated
5 batches are not accepted
The supplier has improved the quality
When normal inspection is being carried out, as long as 2 out of 5 or less consecutive batches are unacceptable in the initial inspection, the process will be transferred to the Strict Inspection. The process does not consider submitting more batches. 9.3.2 Strict to Normal
When Strict Inspection is being used, if 5 consecutive batches in the initial inspection have been considered acceptable, the process will resume normal inspection. 9.3.3 Normal to Relaxed
9, 3. 3. 1 General
When normal inspection is in use, if all of the following conditions are met, transfer to relaxed inspection should be made: 8) The current transfer score (see 9.3.3, 2) is at least 30 points: [) Production is stable:
The responsible department considers relaxed inspection desirable,
9.3.3.2 Transfer score
Unless otherwise specified by the responsible department, the transfer score should be calculated at the beginning of normal inspection. At the beginning of the positive belt inspection, the transfer score is set to 0. The transfer score should be updated after each subsequent batch is inspected. #) Single sampling plan
1) When the acceptance number is equal to or greater than 2, if the batch is accepted after AQI, level 1, then add 3 points to the transfer score; otherwise, reset the transfer score to 0
When the acceptance number is or ", if the batch is accepted, add 2 points to the transfer score; otherwise, reset the transfer score to 0.
foodmate.net
Exchange informationThe probability of acceptance at a given point depends on the sample size. Generally speaking, the probability of acceptance for a large sample is higher than that for a small sample.
AQL is a parameter of the sampling plan and should not be confused with the process average that describes the level of manufacturing operation. Under this sampling system, in order to avoid excessive batch rejection, the process average is required to be better than the AQL. NOTE: The assignment of an AQL does not imply that the supplier has the right to intentionally supply any nonconforming product. 5.2 AQL Specification
The AQL used is specified in the contract or by the responsible department (or by the responsible department in accordance with the prescribed practice), as defined in 3.1.: Different AQLs can be assigned to groups of nonconforming products or individual nonconforming products. The division of nonconforming groups should be adapted to the quality requirements of the specific occasion. In addition to assigning AQLs to individual nonconformities, AQLs may be assigned to groups of nonconformities. When the quality level is expressed as a percentage of nonconforming items (3.1.8 and 3.1.9), the AQL value shall not exceed 10 million nonconforming items. When the quality level is expressed as the number of nonconforming items per 100 units (see 3.1.10 and 3.1.[1]), AQL values ​​up to 1100 nonconforming items per 100 units may be used. 5.3 Preferred AQLs The AQL values ​​given in the table are referred to as the preferred AQL series. If an AQL other than one of these values ​​is assigned to any product, the table does not apply. B. Submission of Sampling Product 6. Composition of Lots Products shall be assembled into identifiable lots, sublots or other deliverable forms (see 6.2). As far as practicable: Each batch shall consist of products of the same type, grade, type, size and composition, prepared under the same basic conditions of time and space. 6.2 Provision of batches The composition of the batch, the batch size and the manner in which each batch is presented and identified by the supplier shall be specified or approved by the responsible authority. If necessary, the supplier shall provide adequate and suitable storage space for each batch, equipment for proper identification and sampling, and personnel for transporting the product.
7 Acceptance and non-acceptance
7.1 Acceptability of batches The acceptance of batches shall be determined by the use of one or more sampling plans. When referring to the results of the sampling process, the term "reject" is used instead of "reject". The term "reject" shall be used to indicate the appropriate action that the user may take. The term "reject" is used to indicate the appropriate action that the user may take. 7.2 Treatment of unacceptable lots The responsible department shall decide how to deal with unacceptable lots. Such lots may be scrapped, sorted (replacement or nonconforming items), returned for further specification against more specific applicable criteria, or kept as a supplementary information. 7.3 Nonconforming products If a lot is accepted, it is authorized to reject any nonconforming products found during inspection, regardless of whether the product forms part of the sample. Nonconforming products found may be reworked and replaced with conforming products. With the approval of the responsible department, the product may be submitted for inspection again in the manner specified by the responsible department:
. 4 Classification of nonconforming or unqualified products
For special provisions for two or more types of nonconforming or unqualified products, a set of sampling plans is required. Usually, this sampling plan has a common sample size: However, because each type has a different AQI, they have different acceptance numbers as shown in Table 2, Table 3 and Table 4. 7.5 Special reservations for fatal nonconforming types Certain types of nonconformities may be considered important. This clause specifically stipulates special provisions for such designated nonconformities. With the consent of the responsible department, each product submitted for these designated nonconformities has the right to be inspected carefully, and the right to refuse to accept the batch as long as a nonconformity of this type is found. At the same time, the responsible department shall have the right to specify the nonconforming category and shall not accept any batch submitted by the supplier if it is found that one or more nonconforming items of this type are included in the samples taken from a batch. 7.6 Resubmission of batches
If a batch is found to be unacceptable, it shall be communicated to all parties. Such batches shall not be submitted again until all products have been retested and retested and both parties are satisfied that the supplier has eliminated all nonconforming products and replaced them with qualified products, or has corrected all nonconformities. The responsible department shall determine whether normal inspection or tightened inspection shall be used for retesting, and whether the retesting shall include all nonconformities of the same category or only the individual types that were originally nonconforming.
8 Sampling of samples
8.1 Selection of samples
The products to be used as samples shall be selected according to simple random sampling (see 5.7 of G3/T3358.1:1993). However, when there are sub-batches or strata (identified by some reasonable criteria), stratified sampling is used. In this way, the sample size of each batch or stratum is proportional to the size of the sub-batch stratum.
8.2 Time of sampling
The sample can be taken after the batch is produced or during the batch production. In both cases, the sample should be selected according to 8.1. .3 Second or multiple sampling
When the first or multiple sampling is used, each subsequent sample should be selected from the remaining part of the same batch box. foodmate.net exchange information 7
GB/ 2828.1—2003/ISO 2859-1:19999 Normal, Tightened and Relaxed Inspection
9.1 Start of Inspection
Unless otherwise directed by the responsible authority, the start of inspection shall be inspection with stop band inspection. 9.2 Continuation of Inspection
Unless the transfer procedure (see 9.3) requires a change in the severity of the inspection, the normal, tightened or relaxed inspection shall continue for successive batches. The transfer procedure shall be used separately for each type of nonconforming or unacceptable product. 9.3 Transfer Rules and Procedures (see Figure 1)
The current transfer shall be divided into
at least 30 minutes
The production is stable
and the responsible authority agrees to release the inspection form for acceptance.
A batch shall not be accepted
|The production is unstable bZxz.net
| or it is considered that the normal inspection form is quickly restored
, other circumstances justify
|9.3. 1 Normal to Strict
2 out of 5 or less consecutive batches are unacceptable
5 consecutive batches are accepted
Figure 1 Simple diagram of transfer rules
When increasing production and light production, the fat is calculated
5 batches are not accepted
The supplier has improved the quality
When normal inspection is being carried out, as long as 2 out of 5 or less consecutive batches are unacceptable in the initial inspection, the process will be transferred to the Strict Inspection. The process does not consider submitting more batches. 9.3.2 Strict to Normal
When Strict Inspection is being used, if 5 consecutive batches in the initial inspection have been considered acceptable, the process will resume normal inspection. 9.3.3 Normal to Relaxed
9, 3. 3. 1 General
When normal inspection is in use, if all of the following conditions are met, transfer to relaxed inspection should be made: 8) The current transfer score (see 9.3.3, 2) is at least 30 points: [) Production is stable:
The responsible department considers relaxed inspection desirable,
9.3.3.2 Transfer score
Unless otherwise specified by the responsible department, the transfer score should be calculated at the beginning of normal inspection. At the beginning of the positive belt inspection, the transfer score is set to 0. The transfer score should be updated after each subsequent batch is inspected. #) Single sampling plan
1) When the acceptance number is equal to or greater than 2, if the batch is accepted after AQI, level 1, then add 3 points to the transfer score; otherwise, reset the transfer score to 0
When the acceptance number is or ", if the batch is accepted, add 2 points to the transfer score; otherwise, reset the transfer score to 0.
foodmate.net
Exchange information3 Preferred AQI
The AQL values ​​given in the table are referred to as the preferred AQL series. For any product, if the specified AQ is not one of these values, then these tables do not apply.
B Submission of Sampling Products
6. Composition of Lots
Products shall be assembled into identifiable lots, sublots or other deliverable forms (see 6.2). As far as practicable: Each lot shall consist of products of the same type, 6
foodmate.net exchange information CB/T 2828.1—2003/IS0 2859-1:1999 same grade, same type, same size and same composition, prepared under conditions of essentially the same time period. 6.2 Lot Submission
The composition of the lot, the batch size and the manner in which each lot is presented and identified by the supplier shall be specified or approved by the responsible authority. The supplier shall provide, where necessary, adequate storage space for each batch, equipment for proper identification and removal, and for the description of all personnel involved in the transport of the product.
7 Acceptance and rejection
7.1 Acceptability of a batch
The acceptance of a batch shall be determined by the use of one or more sampling plans. When referring to the results of a sampling process, the term "not accepted" shall be used instead of "rejection". The term "rejection" shall be reserved for the appropriate action that the user may take, such as "rejection number". 7.2 Treatment of unacceptable batches
The responsible authority shall decide how to treat unacceptable batches. Such batches may be scrapped, sorted (replacement or non-conforming product), returned, further specified against more specific applicable criteria, or retained as a supplementary information. 7.3 Non-conforming products
If a batch is accepted, the right to reject any non-conforming product found during inspection is reserved, regardless of whether the product forms part of the sample. Non-conforming products found may be reworked and replaced with conforming products. With the approval of the responsible department, they may be submitted for inspection again in the manner specified by the responsible department:
.4 Classification of non-conforming or non-conforming products
Special provisions for two or more categories of non-conforming or non-conforming products require the use of a set of sampling plans. Usually, these sampling plans have a common sample size: however, since each category has a different AQI, they have different acceptance numbers as shown in Table 2, Table 3 and Table 4. 7.5 Special reservations for fatal non-conforming categories Certain types of non-conforming products may be considered critical. This clause specifically stipulates special provisions for such specified non-conforming types. With the approval of the responsible department, the right to reserve each product submitted for inspection and the right to reject the batch if a non-conforming product of this type is found is reserved. At the same time, the responsible department shall have the right to specify the nonconforming category and shall not accept any batch submitted by the supplier if it is found that one or more nonconforming items of this type are included in the samples taken from a batch. 7.6 Resubmission of batches
If a batch is found to be unacceptable, it shall be communicated to all parties. Such batches shall not be submitted again until all products have been retested and retested and both parties are satisfied that the supplier has eliminated all nonconforming products and replaced them with qualified products, or has corrected all nonconformities. The responsible department shall determine whether normal inspection or tightened inspection shall be used for retesting, and whether the retesting shall include all nonconformities of the same category or only the individual types that were originally nonconforming.
8 Sampling of samples
8.1 Selection of samples
The products to be used as samples shall be selected according to simple random sampling (see 5.7 of G3/T3358.1:1993). However, when there are sub-batches or strata (identified by some reasonable criteria), stratified sampling is used. In this way, the sample size of each batch or stratum is proportional to the size of the sub-batch stratum.
8.2 Time of sampling
The sample can be taken after the batch is produced or during the batch production. In both cases, the sample should be selected according to 8.1. .3 Second or multiple sampling
When the first or multiple sampling is used, each subsequent sample should be selected from the remaining part of the same batch box. foodmate.net exchange information 7
GB/ 2828.1—2003/ISO 2859-1:19999 Normal, Tightened and Relaxed Inspection
9.1 Start of Inspection
Unless otherwise directed by the responsible authority, the start of inspection shall be inspection with stop band inspection. 9.2 Continuation of Inspection
Unless the transfer procedure (see 9.3) requires a change in the severity of the inspection, the normal, tightened or relaxed inspection shall continue for successive batches. The transfer procedure shall be used separately for each type of nonconforming or unacceptable product. 9.3 Transfer Rules and Procedures (see Figure 1)
The current transfer shall be divided into
at least 30 minutes
The production is stable
and the responsible authority agrees to release the inspection form for acceptance.
A batch shall not be accepted
|The production is unstable
| or it is considered that the normal inspection form is quickly restored
, other circumstances justify
|9.3. 1 Normal to Strict
2 out of 5 or less consecutive batches are unacceptable
5 consecutive batches are accepted
Figure 1 Simple diagram of transfer rules
When increasing production and light production, the fat is calculated
5 batches are not accepted
The supplier has improved the quality
When normal inspection is being carried out, as long as 2 out of 5 or less consecutive batches are unacceptable in the initial inspection, the process will be transferred to the Strict Inspection. The process does not consider submitting more batches. 9.3.2 Strict to Normal
When Strict Inspection is being used, if 5 consecutive batches in the initial inspection have been considered acceptable, the process will resume normal inspection. 9.3.3 Normal to Relaxed
9, 3. 3. 1 General
When normal inspection is in use, if all of the following conditions are met, transfer to relaxed inspection should be made: 8) The current transfer score (see 9.3.3, 2) is at least 30 points: [) Production is stable:
The responsible department considers relaxed inspection desirable,
9.3.3.2 Transfer score
Unless otherwise specified by the responsible department, the transfer score should be calculated at the beginning of normal inspection. At the beginning of the positive belt inspection, the transfer score is set to 0. The transfer score should be updated after each subsequent batch is inspected. #) Single sampling plan
1) When the acceptance number is equal to or greater than 2, if the batch is accepted after AQI, level 1, then add 3 points to the transfer score; otherwise, reset the transfer score to 0
When the acceptance number is or ", if the batch is accepted, add 2 points to the transfer score; otherwise, reset the transfer score to 0.
foodmate.net
Exchange information3 Preferred AQI
The AQL values ​​given in the table are referred to as the preferred AQL series. For any product, if the specified AQ is not one of these values, then these tables do not apply.
B Submission of Sampling Products
6. Composition of Lots
Products shall be assembled into identifiable lots, sublots or other deliverable forms (see 6.2). As far as practicable: Each lot shall consist of products of the same type, 6
foodmate.net exchange information CB/T 2828.1—2003/IS0 2859-1:1999 same grade, same type, same size and same composition, prepared under conditions of essentially the same time period. 6.2 Lot Submission
The composition of the lot, the batch size and the manner in which each lot is presented and identified by the supplier shall be specified or approved by the responsible authority. The supplier shall provide, where necessary, adequate storage space for each batch, equipment for proper identification and removal, and for the description of all personnel involved in the transport of the product.
7 Acceptance and rejection
7.1 Acceptability of a batch
The acceptance of a batch shall be determined by the use of one or more sampling plans. When referring to the results of a sampling process, the term "not accepted" shall be used instead of "rejection". The term "rejection" shall be reserved for the appropriate action that the user may take, such as "rejection number". 7.2 Treatment of unacceptable batches
The responsible authority shall decide how to treat unacceptable batches. Such batches may be scrapped, sorted (replacement or non-conforming product), returned, further specified against more specific applicable criteria, or retained as a supplementary information. 7.3 Non-conforming products
If a batch is accepted, the right to reject any non-conforming product found during inspection is reserved, regardless of whether the product forms part of the sample. Non-conforming products found may be reworked and replaced with conforming products. With the approval of the responsible department, they may be submitted for inspection again in the manner specified by the responsible department:
.4 Classification of non-conforming or non-conforming products
Special provisions for two or more categories of non-conforming or non-conforming products require the use of a set of sampling plans. Usually, these sampling plans have a common sample size: however, since each category has a different AQI, they have different acceptance numbers as shown in Table 2, Table 3 and Table 4. 7.5 Special reservations for fatal non-conforming categories Certain types of non-conforming products may be considered critical. This clause specifically stipulates special provisions for such specified non-conforming types. With the approval of the responsible department, the right to reserve each product submitted for inspection and the right to reject the batch if a non-conforming product of this type is found is reserved. At the same time, the responsible department shall have the right to specify the nonconforming category and shall not accept any batch submitted by the supplier if it is found that one or more nonconforming items of this type are included in the samples taken from a batch. 7.6 Resubmission of batches
If a batch is found to be unacceptable, it shall be communicated to all parties. Such batches shall not be submitted again until all products have been retested and retested and both parties are satisfied that the supplier has eliminated all nonconforming products and replaced them with qualified products, or has corrected all nonconformities. The responsible department shall determine whether normal inspection or tightened inspection shall be used for retesting, and whether the retesting shall include all nonconformities of the same category or only the individual types that were originally nonconforming.
8 Sampling of samples
8.1 Selection of samples
The products to be used as samples shall be selected according to simple random sampling (see 5.7 of G3/T3358.1:1993). However, when there are sub-batches or strata (identified by some reasonable criteria), stratified sampling is used. In this way, the sample size of each batch or stratum is proportional to the size of the sub-batch stratum.
8.2 Time of sampling
The sample can be taken after the batch is produced or during the batch production. In both cases, the sample should be selected according to 8.1. .3 Second or multiple sampling
When the first or multiple sampling is used, each subsequent sample should be selected from the remaining part of the same batch box. foodmate.net exchange information 7
GB/ 2828.1—2003/ISO 2859-1:19999 Normal, Tightened and Relaxed Inspection
9.1 Start of Inspection
Unless otherwise directed by the responsible authority, the start of inspection shall be inspection with stop band inspection. 9.2 Continuation of Inspection
Unless the transfer procedure (see 9.3) requires a change in the severity of the inspection, the normal, tightened or relaxed inspection shall continue for successive batches. The transfer procedure shall be used separately for each type of nonconforming or unacceptable product. 9.3 Transfer Rules and Procedures (see Figure 1)
The current transfer shall be divided into
at least 30 minutes
The production is stable
and the responsible authority agrees to release the inspection form for acceptance.
A batch shall not be accepted
|The production is unstable
| or it is considered that the normal inspection form is quickly restored
, other circumstances justify
|9.3. 1 Normal to Strict
2 out of 5 or less consecutive ba
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