Some standard content:
ICS_65.160
Registration No.: 10493—2002
Tobacco Industry Standard of the People's Republic of China
YC/T 26-2002
Replaces YC/T26—1995
Diacetate cellulose tow for cigarette
Diacetate cellulose tow for cigarette2002~05-14 Issued
State Tobacco Monopoly Administration
Implementation on 2002-07-01
YC/T26—2002
This standard is a revision of YC/T26--1995 "Diacetate cellulose tow for cigarette" based on GB/T1.1-2000 "Guidelines for standardization work Part 1: Structure and writing rules of standards". This standard replaces YC/T26-1995 "Cellulose acetate tow for cigarettes". Compared with YC/T26-1995, the main changes of this standard are as follows: the scope of application of the standard has been expanded, and this standard is applicable to tows of various specifications; the test method has become a normative reference document of this standard, and the chapter on test methods has been cancelled; Chapter 3 "Terms and Definitions" is a new addition, which defines four terms for cellulose acetate tow for cigarettes; the chapter "Requirements" has added the requirements for the non-toxicity of tows and the coefficient of variation of tow line density; the requirements that tows should not have dripping, cutting and splitting; the nominal values (rated values) of tow line density, single filament line density and crimp number are determined according to design requirements ; Changed breaking strength to breaking strength; adjusted the limit values of tow density tolerance, crimp number tolerance, breaking strength, oil content, residual acetone content, titanium dioxide content, etc.
- Chapter 5 (Inspection Rules) 5.3 and 5.4 contain the contents related to sampling, and cancelled the chapter on sampling methods and frequency; - Added "Inspection Classification" (see 5.1), added the provisions for factory inspection (see 5.3); stipulated five situations for type inspection (see 5.1.2); modified the batching rules;
- Factory inspection is in accordance with GB/T282819 87 "Batch inspection counting sampling procedures and sampling tables (applicable to continuous batch inspection)" requirements are organized and implemented;
Type inspection is organized and implemented in accordance with the requirements of GB/T2829--1987 "Periodic inspection counting sampling procedures and sampling tables (applicable to the inspection of production process stability)";
The sampling method of the yarn bundles in the sample is modified, and the sampling method for factory inspection is different from the sampling method for type inspection; the quality (weight) inspection and quality (weight) inspection of the yarn bundles in the sample are not carried out; the quality characteristics are divided into A, B according to the importance of the quality characteristics C three categories, unqualified products are divided into three categories of A, BC at the same time; - The qualification of the inspection batch is judged according to the sampling plan and the total number of unqualified products; the provisions for re-inspection are cancelled;
- Added the provisions for disposal after inspection;
- The mark should add: product standard number, manufacturer address, trademark, license number and other contents; clarify the requirements for the quality of moisture-proof materials lining the tow package, and require its quality to comply with the provisions of GB9693-1988 "Sanitary Standards for Polypropylene Resins for Food Packaging" and GB/T12025-1989 "High-density Polyethylene Blown Film". This standard is proposed by the State Tobacco Monopoly Administration. This standard is under the jurisdiction of the Cigarette Sub-Technical Committee of the National Tobacco Standard Promotion Technical Committee. The drafting units of this standard are: China Tobacco Material Company, Science and Education Department of the State Tobacco Monopoly Administration, Nantong Acetate Fiber Co., Ltd., and National Tobacco Quality Supervision and Inspection Center.
The main drafters of this standard are: Wang Jun, Yu Mingfang, Shen Yunlong, Yang Zhanping, Cao Jianhua, Luo Jiliu, Xing Jun, and Yao Dong. The previous versions of the standards replaced by this standard are: YC/T26-1995. 536
1 Scope
Cellulose diacetate tow for cigarettes
YC/T 26—2002
This standard specifies the terms and definitions, requirements, inspection rules, marking, packaging, transportation and storage of cellulose diacetate tow for cigarettes. This standard is applicable to cellulose diacetate tow for cigarettes (hereinafter referred to as tow). 2 Normative references
The clauses in the following documents become the clauses of this standard through reference in this standard. For all dated references, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, the parties who reach an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For all undated references, the latest versions are applicable to this standard. GB/T2828-1987 Batch inspection counting sampling procedure and sampling table (applicable to inspection of continuous batches) GB/T2829---1987 Periodic inspection counting sampling procedure and sampling table (applicable to inspection of production process stability) GB9693 Hygienic standard for polypropylene resin for food packaging GB/T12025 High-density polyethylene blown film (neqJISZ1702) GB15193.3 Acute toxicity test
YC/T 169. 1-- 2002
Series of standards for determination of tobacco tow
YC/T 169.2--2002
YC/T 169.3—2002
YC/T 169. 5 --2002
YC/T 169. 6--2002
YC/T 169.8-2002
YC/T 169.9--2002
YC/T 169.10.-2002
Series of standards for determination of tobacco tow
Series of standards for determination of tobacco tow
Series of standards for determination of tobacco tow
Series of standards for determination of tobacco tow
Series of standards for determination of tobacco tow
Series of standards for determination of tobacco tow
YC/T 169.11—2002
YC/T 169. 12---2002
3 Terms and Definitions
Series of standards for determination of tobacco tow
Series of standards for determination of tobacco tow
The following terms and definitions apply to this standard. 3.1
Split
Yarn line density
Single filament line density
Number of crimps
Breaking strength
Cross-sectional shape
Moisture content
Oil agent content
Residual acetone content
Titanium dioxide content
Packaging and appearance
The yarn band is split longitudinally, and the single filaments at the split are not adhered to each other and do not form a network. 3.2
Drip
There are one or more hard lumps formed by slurry drops on the yarn band. 3.3
Cut
One or more cracks are formed in the transverse direction of the yarn band. 537
YC/T 26--2002
Peculiar smell
If the yarn bundle is mixed with smells other than the inherent smell of the yarn bundle itself, the yarn bundle is said to have "peculiar smell". 4 Requirements
4.1 Safety
4.1.1 The yarn bundle should be non-toxic.
4.1.2 Test method: According to GB15193.3, acute oral toxicity test is carried out on mice. The test is completed by the yarn bundle manufacturer who entrusts the qualified national inspection agency with toxicity test capabilities. Before the yarn bundle is put on the market, the manufacturer shall obtain at least one identification report that can prove that the yarn bundle produced is non-toxic. If the type of raw materials used to produce the yarn bundle changes, the manufacturer shall provide a new identification report on the non-toxicity of the yarn bundle.
4.2 Physical and chemical properties
The physical and chemical properties of the yarn bundle shall comply with the provisions of Table 1. Fur 1
Tow line density/ktex
Tow line density variation coefficient/%
Single yarn line density/dtex
Number of crimps/(pieces/25mm)
Breaking strength/(N/ktex)
Cross-sectional shape
Moisture/%
Oil agent content/%
Residual acetone content/%
.Titanium oxide content/%
4.3 Appearancewww.bzxz.net
The tow should be free of odor.
Technical requirements
Product design requirements±0.10
Product design requirements±0.30
Product design requirements±4
0.80~1.50
0.40±0.20
4.3.2 The number of broken ends of the tow in the package is ≤2, and there should be a broken end mark at the broken end. 4.3.3 The tow should not have defects such as dripping, cutting and splitting. 4.3.4 The tow should be arranged regularly in the package and easy to draw out. 4.3.5 The test method is in accordance with 4.2 Implementation. 5 Inspection rules
5.1 Inspection classification
5.1.1 Product inspection is divided into factory inspection and type inspection. 5.1.2 Type inspection should be carried out in any of the following cases: before new products are put into mass production;
when the raw materials of the product undergo major changes that may affect the product performance; when a product is in normal production for one year; when specified in the contract;
…when the national quality supervision and management department puts forward the requirement for type inspection. 538 | | tt | --2002
YC/T 169. 6—2002
YC/T 169. 8—-2002
YC/T 169. .-- 2002
YC/T 169.10—2002
YC/T 169. 11---2002
5.1.3 The items for factory inspection and type inspection are shown in Table 2. Inspection items
Non-toxic"
No odor
Tow line density
Tow line density coefficient of variation
Single wire density
Number of crimps
Breaking strength
Cross-sectional shape
Moisture content
Oil agent content
Residual acetone content
Titanium dioxide content
Regular discharge
Number of broken ends
Note: "
Unqualified classification
" means that the item is not inspected; "√" means that the item is to be inspected. Check the identification report of the non-toxicity of the tow.
5.2 Batch standard test
Factory inspection
YC/T 26--2002
Type inspection
A package of tow is a unit product. The packages of tow of the same specification produced on the same day (0:00 to 24:00) are the inspection batch. The batch quality is expressed by the number of unqualified products per 100 units of products. 5.3 Factory inspection
5.3.1 Factory inspection shall be organized and implemented in accordance with the requirements of GB/T2828. 5.3.2
Table 3 specifies the acceptable quality level (AQL), inspection level (IL) and sampling plan type. Table 3
Unqualified classification
Sampling plan type
Single sampling plan
5.3.3 According to Table 3 and GB/T2 5.3.4 Draw samples according to the provisions of 4.9 of GB/T2828-1987. c
5.3.5 The sampling point for all the yarn bundles in the sample is at the pre-packing place of the swinging wire. The sample is taken when the yarn bundle is about to fall. At least 100 yarn bundles are placed in a clean glass bottle and the bottle cap is tightly closed as a sample for testing the residual acetone content and moisture content of the yarn bundles; then take about 12kg of yarn bundles and put them in a special basin as a sample for other inspection items. 5.3.6 Inspect the samples according to the provisions of 4.10 of GB/T2828-1987. 539
YC/T 26—2002
5.3.7 Determine whether the inspection batch is qualified or unqualified in accordance with the provisions of 4.11 of GB/T2828—1987. 5.3.8 Dispose of the inspected batch in accordance with the provisions of 4.12 of GB/T2828--1987. 5.4 Type inspection
5.4.1 Type inspection shall be carried out in accordance with the requirements of GB/T2829. 5.4.2 Table 4 specifies the Rejection Quality Level (RQL), Discrimination Level (DL) and Sampling plan type. Table 4
Classification of non-conformities
Sampling plan type
Single sampling plan
5.4.3 Retrieve the sampling plan according to Table 4 and 4.8.1 of GB/T2829-1987. 5.4.4 Draw samples according to 4.9 of GB/T2829-1987. 5.4.5 For the bundles in the sample that need to be inspected for appearance, the appearance should be inspected package by package according to 4.3. C
5.4.6 For the bundles in the sample that need to be inspected for physical and chemical properties, samples should be taken from the upper, middle and lower layers of the bundles, with the upper and lower layers being about 5 cm from the top and bottom of the bundle respectively. When sampling each layer, the tow should be wound along the laying direction. About 50g of the tow should be wound into a clean glass bottle and the bottle cap should be tightly closed. This is used as a sample to test the residual acetone content and moisture content of the tow. Then about 100g of the tow should be wound as a sample for other inspection items. For each physical and chemical property inspection, the samples of these three layers should be inspected. 5.4.7 Inspect the samples according to the provisions of 4.10 of GB/T2829-1987. 5.4.8 Determine whether the type inspection is qualified or unqualified according to the provisions of 4.11 of GB/T2829-1987. 5.4.9 Dispose of the batch after inspection according to the provisions of 4.12 of GB/T2829-1987. 6 Marking, packaging, transportation and storage
6.1 The outer packaging of the tow shall be marked with product name, product standard number, manufacturer name, address, trademark, tow specification, manufacturing date, gross weight, net weight, number, license number, etc., and prohibited signs such as moisture-proof and do not invert. 6.2 The tow package shall be marked with the top and bottom of the tow. 6.3 The tow package shall be lined with moisture-proof film material, and the quality of the moisture-proof film material shall comply with the provisions of GB9693 and GB/T12025. 6.4 The tow package shall be packed with materials with a certain strength and not easy to be damaged, and shall be tied firmly. 6.5 The cargo box for transporting the tow package shall be dry, clean and odorless. During transportation, measures shall be taken to prevent moisture and rain, and do not mix with damp or odorous items.
6.6 The tow package shall be placed in a dry and well-ventilated warehouse. 6.7 From
the date of manufacture of the tow, the storage period of the tow shall not exceed one year. 5405 The sampling point of all the bundles in the sample is at the pre-packing place of the swing wire. The sampling is taken when the bundle is about to drop the wire. At least 100 bundles are placed in a clean glass bottle and the bottle cap is tightly closed as the sample for testing the residual acetone content and moisture content of the bundles; about 12kg of bundles are placed in a special basin as the sample for other inspection items. 5.3.6 Inspect the samples according to the provisions of 4.10 of GB/T2828-1987. 539
YC/T 26-2002
5.3.7 Determine whether the inspection batch is qualified or unqualified according to the provisions of 4.11 of GB/T2828-1987. 5.3.8 Dispose of the batch after inspection according to the provisions of 4.12 of GB/T2828--1987. 5.4 Type inspection
5.4.1 Type inspection shall be carried out in accordance with the requirements of GB/T2829. 5.4.2 Table 4 specifies the Rejection Quality Level (RQL), Discrimination Level (DL) and sampling scheme type. Table 4
Rejection Classification
Sampling Scheme Type
Single Sampling Scheme
5.4.3 Retrieve the sampling scheme according to Table 4 and 4.8.1 of GB/T2829-1987. 5.4.4 Draw samples according to 4.9 of GB/T2829-1987. 5.4.5 For the bundles in the sample that need to be inspected for appearance, the appearance should be inspected package by package according to 4.3. C
5.4.6 For the bundles in the sample that need to be inspected for physical and chemical properties, samples should be taken from the upper, middle and lower layers of the bundles, and the upper and lower layers are about 5 cm from the top and bottom of the bundles respectively. When sampling each layer, the tow should be wound along the laying direction. About 50g of the tow should be wound into a clean glass bottle and the bottle cap should be tightly closed. This is used as a sample to test the residual acetone content and moisture content of the tow. Then about 100g of the tow should be wound as a sample for other inspection items. For each physical and chemical property inspection, the samples of these three layers should be inspected. 5.4.7 Inspect the samples according to the provisions of 4.10 of GB/T2829-1987. 5.4.8 Determine whether the type inspection is qualified or unqualified according to the provisions of 4.11 of GB/T2829-1987. 5.4.9 Dispose of the batch after inspection according to the provisions of 4.12 of GB/T2829-1987. 6 Marking, packaging, transportation and storage
6.1 The outer packaging of the tow shall be marked with product name, product standard number, manufacturer name, address, trademark, tow specification, manufacturing date, gross weight, net weight, number, license number, etc., and prohibited signs such as moisture-proof and do not invert. 6.2 The tow package shall be marked with the top and bottom of the tow. 6.3 The tow package shall be lined with moisture-proof film material, and the quality of the moisture-proof film material shall comply with the provisions of GB9693 and GB/T12025. 6.4 The tow package shall be packed with materials with a certain strength and not easy to be damaged, and shall be tied firmly. 6.5 The cargo box for transporting the tow package shall be dry, clean and odorless. During transportation, measures shall be taken to prevent moisture and rain, and do not mix with damp or odorous items.
6.6 The tow package shall be placed in a dry and well-ventilated warehouse. 6.7 From
the date of manufacture of the tow, the storage period of the tow shall not exceed one year. 5405 The sampling point of all the bundles in the sample is at the pre-packing place of the swing wire. The sampling is taken when the bundle is about to drop the wire. At least 100 bundles are placed in a clean glass bottle and the bottle cap is tightly closed as the sample for testing the residual acetone content and moisture content of the bundles; about 12kg of bundles are placed in a special basin as the sample for other inspection items. 5.3.6 Inspect the samples according to the provisions of 4.10 of GB/T2828-1987. 539
YC/T 26-2002
5.3.7 Determine whether the inspection batch is qualified or unqualified according to the provisions of 4.11 of GB/T2828-1987. 5.3.8 Dispose of the batch after inspection according to the provisions of 4.12 of GB/T2828--1987. 5.4 Type inspection
5.4.1 Type inspection shall be carried out in accordance with the requirements of GB/T2829. 5.4.2 Table 4 specifies the Rejection Quality Level (RQL), Discrimination Level (DL) and sampling scheme type. Table 4
Rejection Classification
Sampling Scheme Type
Single Sampling Scheme
5.4.3 Retrieve the sampling scheme according to Table 4 and 4.8.1 of GB/T2829-1987. 5.4.4 Draw samples according to 4.9 of GB/T2829-1987. 5.4.5 For the bundles in the sample that need to be inspected for appearance, the appearance should be inspected package by package according to 4.3. C
5.4.6 For the bundles in the sample that need to be inspected for physical and chemical properties, samples should be taken from the upper, middle and lower layers of the bundles, and the upper and lower layers are about 5 cm from the top and bottom of the bundles respectively. When sampling each layer, the tow should be wound along the laying direction. About 50g of the tow should be wound into a clean glass bottle and the bottle cap should be tightly closed. This is used as a sample to test the residual acetone content and moisture content of the tow. Then about 100g of the tow should be wound as a sample for other inspection items. For each physical and chemical property inspection, the samples of these three layers should be inspected. 5.4.7 Inspect the samples according to the provisions of 4.10 of GB/T2829-1987. 5.4.8 Determine whether the type inspection is qualified or unqualified according to the provisions of 4.11 of GB/T2829-1987. 5.4.9 Dispose of the batch after inspection according to the provisions of 4.12 of GB/T2829-1987. 6 Marking, packaging, transportation and storage
6.1 The outer packaging of the tow shall be marked with product name, product standard number, manufacturer name, address, trademark, tow specification, manufacturing date, gross weight, net weight, number, license number, etc., and prohibited signs such as moisture-proof and do not invert. 6.2 The tow package shall be marked with the top and bottom of the tow. 6.3 The tow package shall be lined with moisture-proof film material, and the quality of the moisture-proof film material shall comply with the provisions of GB9693 and GB/T12025. 6.4 The tow package shall be packed with materials with a certain strength and not easy to be damaged, and shall be tied firmly. 6.5 The cargo box for transporting the tow package shall be dry, clean and odorless. During transportation, measures shall be taken to prevent moisture and rain, and do not mix with damp or odorous items.
6.6 The tow package shall be placed in a dry and well-ventilated warehouse. 6.7 From
the date of manufacture of the tow, the storage period of the tow shall not exceed one year. 540
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