This standard specifies the procedures and sampling tables for the one-time supervision sampling inspection of the total number of products with the number of non-conforming products as the quality indicator. This standard is applicable to the quality supervision department to regularly or irregularly implement quality supervision sampling inspection on the overall number of products that have been accepted. This standard is applicable to the situation where the total number of supervision is 10≤N≤250. The main sampling parameters or indicators in this standard shall be specified by the industry or local supervision sampling standards. This standard stipulates that the risk of misjudgment α＝0.05. GB/T 15482-1995 Procedures and sampling tables for one-time sampling inspection of small total number of product quality supervision GB/T15482-1995 Standard download decompression password: www.bzxz.net
This standard specifies the procedures and sampling tables for the one-time supervision sampling inspection of the total number of products with the number of non-conforming products as the quality indicator. This standard is applicable to the quality supervision department to regularly or irregularly implement quality supervision sampling inspection on the overall number of products that have been accepted. This standard is applicable to the situation where the total number of supervision is 10≤N≤250. The main sampling parameters or indicators in this standard shall be specified by the industry or local supervisory sampling standards. This standard stipulates that the risk of misjudgment α = 0.05.

CDC 658- 562 - 311. 213
National Standard of the People's Republic of China
GR/T15482-1995
Single sampling procedures and tablesfor product quality audit of smalpopulation byattributes
1995-06-30 Issued
1996-01-01 State Bureau of Technical Supervision
National Standard of the People's Republic of China
Single sampling procedures and tablesfor product quality audit of smalpopulation byattributes attribules
1 Subject content and applicable scope
GB/T154B2-1995
This standard specifies the procedures and sampling tables for the overall supervision sampling inspection of products with the number of non-conforming products as the quality indicator. This standard is applicable to the quality supervision sampling inspection of the overall quality of products that have been inspected and approved by the quality supervision department on a regular or irregular basis. This standard is not applicable to the form of supervision of the total quality of 10V25C. The main sampling prime indicators in this standard shall be specified in accordance with the industry or local supervision sampling standards.
This standard specifies the risk of misjudgment -0.05
2 References
The provisions contained in the following standards constitute the text of this standard through reference in this standard. The versions shown are valid at the time of publication. All standards are subject to revision. Parties using this standard should explore the possibility of using the latest versions of the following standards. GR/T3358 Statistical terms
GB/T6583 ISO8402 Quality terms
GB/T10111 Random sampling method using machine counters 3 Terms and special numbers
In addition to the following language symbols, this standard also uses the terms and recommended numbers in GB/T235R and GB/T3-ISO842
3.1 Terms
3.1.1 Supervision sampling inspection
Indian party independently conducts random inspection on products to determine whether the overall supervision can pass the inspection. 3.1.2 Supervision overall
The product of the supervision meeting.
3.1.3 Supervision quality level
The upper limit of the number of unqualified products allowed in the supervision population, 3.1.4 The efficacy of each sampling test
When the actual quality level D of the supervision population is greater than the supervision quality level D, the probability that the supervision population is judged as unpassable, 3.1.5 One-time supervision sampling test
! The sampling test that determines whether the supervision population can pass or not based on the test results of one sample. 3.1. 6. Risk of error in the test area
National Technical Supervision High 1.995-06-30 approved 1996-01-01 implementation #
G:T154821995
The supervision task that actually meets the specified quality requirements is judged as unpassable. 3.1.7 Risk of error in the test area
The supervision task that actually does not meet the specified quality requirements is judged as passable. 3.8 Unqualified
The quality characteristics of the trial production records do not meet the current requirements and are transferred to unqualified: Generally, according to the importance of quality characteristics or according to the severity of the quality problems, the small combinations are divided into: Class A unqualified, Class B unqualified and Class (unqualified. 3.1.9 Class A unqualified
The extremely important quality characteristics of the product do not meet the requirements of the unit product quality sensitive characteristics Extremely serious non-conformity is determined as Class A.
3.1.10 The number of stocks does not decrease
The single quality of the single value product does not meet the requirements, or the homogeneous quality of the two electrical products does not meet the requirements, the bed is Class A,
3.1.111 Class unqualified
The single quality of other products is not compliant with the regulations, or the quality characteristics of the single supply product are transferred to the micro-drug combination and are called (sudden quality
3.1.t2 Non-qualified products
There are one or more non-standard products in the Taiwan supply, which are Taiwan consulting products. Non-qualified products can be divided into: Class 1 non-qualified products in various categories
3.7.13 Class A unqualified products
·A product that has passed the Class A qualification may also be a product that has passed the Class B qualification. ·It is called a Class A product.
3.1.14 Class A unqualified products
There are one or more Class A unqualified products, and there may also be other Class B unqualified unit products (Class A and Class B unqualified units are not included), which are called Class B unqualified products.
3.1.15 Class A unqualified products
There are one or more Class A unqualified unit products, but they do not include Class A and Class B unqualified unit products, which are called Class B unqualified products.3.1.16 Supervision and inspection level
Monitor the correspondence between samples and inspection results in the selection test.3.1.17 Unqualified stop judgment number
Monitor the minimum number of unqualified products in the sample when the total sugar content is judged as unqualified.3.1-Old supervision reduction plan
The sample water is picked together with the number of unqualified products, and the ring is the monitoring kidney draw. Scheme, 3.2
A: The total number of unit products included in the supervision population, that is, the supervision population, N! Sample ±.
d: The number of non-conforming products in the sample.
r: Clinical quality level.
D: The actual quality level of the supervision population, that is, the number of non-conforming products contained in the supervision population. (:): Supervision sampling plan.
(Probability function of the passing of the supervision sampling plan. Product: The number of non-pass judgments.
a: Judgment risk
, judgment risk.
4 Procedures for sampling for supervision
The control and inspection procedures specified in this standard are as follows:
Determine the risk population!
Determine the quality characteristics of the unit product:
Determine the classification of non-conforming products!
Specify the supervision quality level
Specify the supervision inspection level!
Search for supervision sampling plan:
Select sample:
h. Test sample:
Judge whether the supervision population can pass
5 Implementation of supervision sampling inspection
5.1 Determine the supervision population
GB/T154B2—1995
Version Determine the supervision population according to supervision needs. The products in the supervision population can be products produced by the same manufacturer, brand and the same production cycle, or they can be similar products produced by the same manufacturer, different models and different production cycles. 5.2 Determine the quality of the unit product
Make clear provisions for the quality characteristics of the unit product such as technical performance, technical indicators, safety, and hygiene indicators. 5.3 Determine the classification of non-conforming products
According to actual needs, non-conforming products can be divided into Class A, Class B and Class C. If necessary, they can be divided into more than three categories. In the case of relatively simple unit products, they can also be divided into two categories of non-conforming products, or even no categories. According to the definition of non-conforming products, non-conforming products can be divided into Class A non-conforming products, Class B non-conforming products or Class C non-conforming products. 5.4 Specify the supervision quality level
According to the supervision needs, specify the clinical quality level D:. In principle, specify the clinical quality level of each non-conforming product according to the classification of non-conforming products. The supervision quality level specified for Class A non-conforming products should be lower than the supervision quality level specified for Class B non-conforming products, and the supervision quality level specified for Class C non-conforming products should be higher than the supervision quality level specified for Class B non-conforming products. 5.5 Specified inspection levels
Table 1 gives the clinical sampling plan for the first inspection level. Table 2 gives the clinical sampling plan for the second inspection level. The higher the inspection level, the larger the sample size and the higher the inspection efficiency. Once the inspection level is selected, it shall not be changed during implementation. For important products that affect the safety of life and property, a high-efficiency inspection level should be selected for inspection. 5.6 Inspection sampling plan
In Table 1 or Table 2, read the inspection sampling plan from the intersection of the column where the total amount of the inspection data is located and the row where the specified number is located. If the intersection is the first one, read the first sampling plan indicated in the first column. When the monitoring population is between the two consistent values, the sampling method determined by the larger value should be used. 5.7 Sample selection
The sample should be randomly selected from the monitoring population. The GB gate 1011 method and other methods can be used to conduct a single random sampling in the entire monitoring population, or other random sampling methods can be used. 5.8. For each inspection item specified in advance, according to the inspection methods and the judgment criteria for whether the product is qualified or not specified in the relevant standards and technical requirements, test each sample one by one, and count the number of unqualified products in the individual inspection sample. Different categories of unqualified products should be counted separately in the sample. 5.9. Whether the overall monitoring population can pass the inspection, the sampling method of GB/T15462-1995 shall be sufficient. If the number of difference is not less than the passing difference judgment number based on the results of the inspection samples, then the monitoring population is judged to be unpassable. If the number of unqualified products in the original sample is less than the number of unqualified products, the monitoring population is judged to be passable. If the unqualified products in the monitoring population are divided into several categories, only when the corresponding temporary sampling method is judged to be passable, the monitoring population can be judged to be passable. Otherwise, the monitoring population is judged to be unpassable. 5. When the sample size of the monitoring sample is small, the risk of false judgment of the monitoring population is large, and the monitoring population that has passed the inspection is not qualified for confirmation. 5. The passing probability and test efficacy of the monitoring sampling plan are shown in Table 1~3.24. The passing probability function of the monitoring sampling method (based on the virtual distribution) is given. When -), the other door can find out the value of the corresponding oil preparation case through slow rate (). Its 1-1 (D> is when D=D, the inspection efficiency of the supervision sample is.
Example: There are 45 single products in the total clinical kidney collection, and the supervision quality level is = 10. The second inspection level suppression plan is selected. The internal table 2 product supervision sample rate is = 2=2. When the total supervision vehicle actually contains 33 unqualified products, by looking up table 3.8, 1 () = 1 (33: 0, 4990. So when [). = 32, the effectiveness of the monitoring table is 1-0.4990 = 0.5C107 Application Examples
Example 1: Ai monitoring temporary There are 21 units of products in the total. We want to check whether the number of unqualified products is more than 2. We use the first supervision inspection index method. From Table 1, we can find that the supervision sampling method is 2F-1, that is, we randomly select 2 samples from the total supervision for inspection. If the number of unqualified products in the formula is less than 1, the supervision population is judged to pass; if the number of qualified products is not less than 1, the supervision population is judged to fail. Example 2: There are 21 units of products in the total supervision. We want to check whether the number of unqualified products is more than 5. If we use the second supervision inspection level plan, since the intersection of the column with a value of 0 and the row with a value of 1 in Table 1 is a Going up, the required sampling plan is (1); randomly select 1 product from the total monitoring population for inspection. If it is a qualified product, the total monitoring population can pass; if it is an unqualified product, the total monitoring population can be judged to fail. And select the sampling plan for the second level of monitoring and control inspection, check the table? . In the columns of D=8 and the rows of D5, the required sampling plan can be obtained. Randomly collect products from the total monitoring population for laboratory inspection. If the number of unqualified products is less than 2, the total monitoring population can pass; if the number of unqualified products is not less than 2, the total monitoring population can be judged to fail. However, these two sampling plans The average efficiency is different. From Table 3.12, when there are 3 substandard products in the total population, the efficiency of the monitoring sampling plan (111) is 1-130) = 1-0.62:) = 5.370 The efficiency of the monitoring sampling plan (6,2> is 1130) = 102644 = 0.7356 The efficiency of the monitoring sampling plan (62) is significantly higher than that of the sampling plan (11). The monitoring and inspection department can determine one of the sampling plans based on economic factors and efficiency factors. Example 3: There are 78 units of products in a monitoring total population, and it is desired to check whether the number of substandard products exceeds 5. The monitoring sampling plan with a sampling rate of 170178~19C is used. The first level of supervision and inspection sampling plan is selected according to the table. The supervision sample is (2;)
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(S1=N)
CB/T15482
2 906%
(2=）
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