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Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 29335-2024: General quality requirements for twist-off caps of food containers Status: Valid GB/T 29335: Historical versions
Basic dataStandard ID: GB/T 29335-2024 (GB/T29335-2024)Description (Translated English): General quality requirements for twist-off caps of food containers Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: A82 Classification of International Standard: 67.250 Word Count Estimation: 26,288 Date of Issue: 2024-04-25 Date of Implementation: 2024-11-01 Older Standard (superseded by this standard): GB/T 29335-2012 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 29335-2024: General quality requirements for twist-off caps of food containers---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.ICS 67:250 CCSA82 National Standards of People's Republic of China Replaces GB/T 29335-2012 General rules for quality of claw-type twist-off caps for food containers Released on 2024-04-25 2024-11-01 Implementation State Administration for Market Regulation The National Standardization Administration issued Table of ContentsPreface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Product specifications, models and categories 1 4:1 Product Specifications 1 4:2 Product Model 2 4:3 Product Classification 2 5 Quality requirements 3 5:1 Raw and auxiliary materials 3 5:2 Basic structure and dimensions 3 5:3 Appearance quality 4 5:4 External wall coating quality 5 5:5 Inner wall coating quality 5 5:6 Sealing gasket quality 5 5:7 Openness 5 5:8 Vacuum safety button 5 6 Test methods 6 6:1 General requirements for reagents and solutions 6 6:2 Specifications and dimensions 6 6:3 Appearance Quality 8 6:4 External wall coating quality 8 6:5 Inner wall coating quality 9 6:6 Sealing gasket quality 10 6:7 Openness 11 7 Inspection Rules 11 7:1 Basic requirements 11 7:2 Factory Inspection 11 7:3 Type inspection 11 7:4 Transfer Rules12 8 Marking, packaging, transportation and storage 13 8:1 Sign 13 8:2 Packaging 13 8:3 Transportation13 8:4 Storage 13 Appendix A (Informative) Basic structure and dimensions of the cover 14 Appendix B (Informative) Recommended indicators for opening torque and vacuum safety button 16ForewordThis document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting: This document specifies the technical requirements related to quality: For food safety requirements, please refer to relevant laws, regulations, policies and food safety standards: document: This document replaces GB/T 29335-2012 "Claw-type twist-off caps": Compared with GB/T 29335-2012, except for structural adjustments and editorial In addition to the modifications, the main technical changes are as follows: --- Deleted 3:1~3:6 in "Terms and Definitions" (see Chapter 3 of the:2012 edition); --- Added the "anti-slip teeth conventional claw type twist-off cap" and other twist-off cap models (see 4:2 Table 1); --- Changed the product classification (see 4:3, 4:3 of the:2012 edition); --- Changed the requirements for tin-plated or chrome-plated steel sheets and sealing gaskets in "Raw and auxiliary materials" (see 5:1, 5:1 of the:2012 edition); --- Deleted the requirements for interior and exterior coatings in "Raw and auxiliary materials" (see 5:1 of the:2012 edition); --- Added requirements for tin-plated or chrome-plated steel sheets in "raw and auxiliary materials" (see 5:1:2); --- Added requirements for coated iron in "raw and auxiliary materials" (see 5:1:3); --- Deleted the content related to "food hygiene and safety" (see 5:1:5 of the:2012 edition); --- Changed the cover type and specifications of products 53 and 58 (see 5:2, 5:2 of the:2012 edition); --- Added "salt resistance" and test methods (see 5:5:5 and 6:5:5); --- Changed the "Bactericidal resistance test method" (see 6:4:1, 6:4:1 of the:2012 edition); --- Changed the "Corrosion resistance test" method (see 6:4:2, 6:4:2 of the:2012 edition); --- Changed the situations where type inspection should be carried out (see 7:3:1, 7:3:1 of the:2012 edition): Please note that some of the contents of this document may involve patents: The issuing organization of this document does not assume the responsibility for identifying patents: This document is proposed and coordinated by the National Food Industry Standardization Technical Committee (SAC/TC64): This document was drafted by: Hangzhou COFCO Packaging Co:, Ltd:, Wuxi Huapeng Bottle Cap Co:, Ltd:, Suzhou Huayuan Holdings Co:, Ltd:, Shan Donghuanqiu Tin Printing and Canning Co:, Ltd:, Huanlejia Food Group Co:, Ltd:, China Canning Industry Association, China Food Fermentation Industry Research INN LIMITED: The main drafters of this document are: Yu Jianwei, Xu Dixing, Shen Junjie, Zhou Demin, Guo Lirong, Liu Youqian, Qiu Kai, Yu Xinxin, Gao Yan, Chao Xi, Wu, G:, Wang, Y:, and Ma, J:J: The previous versions of this document and the documents it replaces are as follows: ---First published in:2012 as GB/T 29335-2012; ---This is the first revision: General rules for quality of claw-type twist-off caps for food containers1 ScopeThis document specifies the product classification, product specifications, requirements, test methods, inspection rules, marking, packaging, etc: of claw-type twist-off closures for food containers: Packing, transportation and storage: This document applies to claw-type twist-off closures made of tin-plated or chrome-plated thin steel sheets or coated iron for sealing bottled food packaging:2 Normative referencesThe contents of the following documents constitute the essential clauses of this document through normative references in this document: For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document: GB/T 2520 Cold-rolled tin-plated steel sheets and strips GB/T 2828:1 Sampling procedures for inspection by attributes Part 1: Sampling plans for batch inspection based on the acceptance quality limit (AQL) GB/T 6682 Specifications and test methods for water used in analytical laboratories GB/T 24180 Cold-rolled chrome-plated steel sheets and strips GB/T 41711 Determination of acid resistance, sulfur resistance and salt resistance of coatings on the inner wall of metal food containers GB/T 41899 General rules for the quality of tin-plated or chrome-plated steel sheets for food containers GB/T 43951 General rules for the quality of coated iron and coated aluminum for food containers QB/T 1877 Printing of tinned (chrome) steel sheets for packaging and decoration3 Terms and definitionsThe following terms and definitions apply to this document: 3:1 Solid sealing gasket solidsealinggasket The glue made of polyvinyl chloride resin and other auxiliary materials is injected, baked and plasticized to form a solid seal bonded to the inner wall of the bottle cap: The gasket may be a solid sealing gasket which is bonded to the inner wall of the bottle cap after being heated and molded by a thermoplastic elastomer: 3:2 The foamable glue made of polyvinyl chloride resin and other auxiliary materials is made into a kind of adhesive bonded to the inner wall of the bottle cap through injection, baking and plasticization: A sealing gasket with micro pores, or a sealing gasket with micro pores which is bonded to the inner wall of a bottle cap after being heated and molded by a thermoplastic elastomer: 4 Product specifications, models and categories 4:1 Product Specifications Product specifications include nominal diameters of 30mm, 38mm, 43mm, 48mm, 53mm, 58mm, 63mm, 66mm, Claw-type twist-off caps for 70mm, 77mm, 82mm and 100mm: ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 29335-2024_English be delivered?Answer: Upon your order, we will start to translate GB/T 29335-2024_English as soon as possible, and keep you informed of the progress. 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Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version GB/T 29335-2024?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 29335-2024 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |
