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GB/T 29992-2025 English PDF

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GB/T 29992-2025: Rubber sealing rings for pressure cooker
Status: Valid

GB/T 29992: Historical versions

Standard IDUSDBUY PDFLead-DaysStandard Title (Description)Status
GB/T 29992-2025289 Add to Cart 3 days Rubber sealing rings for pressure cooker Valid
GB/T 29992-2017199 Add to Cart 3 days Rubber sealing rings for pressure cooker Valid
GB 29992-2013359 Add to Cart 3 days [GB/T 29992-2013] Rubber sealing rings for pressure cooker Obsolete


Basic data

Standard ID: GB/T 29992-2025 (GB/T29992-2025)
Description (Translated English): Rubber sealing rings for pressure cooker
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G43
Classification of International Standard: 83.140.50
Word Count Estimation: 14,171
Date of Issue: 2025-08-01
Date of Implementation: 2026-02-01
Older Standard (superseded by this standard): GB/T 29992-2017
Issuing agency(ies): State Administration for Market Regulation, Standardization Administration of China

GB/T 29992-2025: Rubber sealing rings for pressure cooker

---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT29992-2025
ICS 83.140.50 CCSG43 National Standard of the People's Republic of China Replaces GB/T 29992-2017 Daily pressure cooker rubber sealing ring Released on August 1, 2025 Implementation on February 1, 2026 State Administration for Market Regulation The National Standardization Administration issued

Table of Contents

Preface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Requirements 1 4.1 Manufacturing 1 4.2 Basic Structure 1 4.3 Specifications 2 4.4 Physical properties of rubber materials 2 4.5 Requirements for sealing rings 2 5 Test Method 3 5.1 Rubber material 3 5.2 Sealing ring 4 6 Inspection Rules 4 6.1 Inspection categories 4 6.2 Factory Inspection 5 6.3 Type inspection 5 7 Marking, packaging, transportation and storage 5 7.1 Sign 5 7.2 Packaging 6 7.3 Transportation and storage 6 Appendix A (Normative) Water vapor aging performance test method 7 A.1 Principle 7 A.2 Sample 7 A.3 Test equipment 7 A.4 Test Step 7 Appendix B (Normative) Volatile Matter Content Test Method 8 B.1 Principle 8 B.2 Materials 8 B.3 Instruments and Equipment 8 B.4 Analysis Step 8 B.5 Presentation of analysis results 8 B.6 Precision 9 Preface This 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 replaces GB/T 29992-2017 "Rubber sealing ring for daily pressure cookers". Compared with GB/T 29992-2017, except for the structural adjustment, In addition to the integration and editorial changes, the main technical changes are as follows. a) Added manufacturing requirements (see 4.1); b) The hardness index of hardness grade 70 in the physical properties of rubber materials has been changed (see Table 1, Table 1 of the.2017 edition); c) The technical indicators of tensile strength and tear strength in the physical properties of rubber materials have been changed (see Table 1, Table 1 of the.2017 edition); d) The hot air aging conditions and technical indicators in the physical properties of rubber materials have been modified (see Table 1, Table 1 of the.2017 edition); e) Added requirements and test methods for volatile substances (see 4.5.8, Appendix B); f) The batching requirements in the inspection rules have been changed (see 6.2.1, 5.1 of the.2017 edition); g) The transportation and storage requirements of the product have been changed (see 7.3.1, 6.3.1 of the.2017 edition); h) The shelf life of the sealing ring has been changed (see 7.3.2, 6.3.2 of the.2017 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 was proposed by the China Petroleum and Chemical Industry Federation. This document is under the jurisdiction of the National Technical Committee on Rubber and Rubber Products of Standardization (SAC/TC35). This document was drafted by. Zhejiang Academy of Quality Science, Zhejiang Supor Rubber and Plastic Products Co., Ltd., Yuhuan Zhongde Plastic Co., Ltd. Company, Taizhou Zhuoyi Rubber and Plastic Co., Ltd., Yuhuan County Aviation Plastics Electromechanical Factory, Sichuan Daohong New Materials Co., Ltd., Foshan Fangyue Import and Export Co., Ltd. Trading Co., Ltd. The main drafters of this document are. Shen Zhen, Xu Daoyi, Dong Fuxiu, Dong Fuzhi, Shen Jinqing, Zhou Wugang, Wang Huihua, Miao Xiaoping, Zhang Weijie, Zhu Yingying. This document was first issued as a mandatory national standard GB 29992-2013 in.2013 and converted into a recommended national standard in.2017. GB/T 29992-2017, this is the first revision. Daily pressure cooker rubber sealing ring 1 Scope This document specifies the requirements, inspection rules, marking, packaging, transportation and storage of rubber seals for daily pressure cookers, and describes the corresponding test Test method. This document applies to the production, inspection and acceptance of rubber sealing rings (hereinafter referred to as sealing rings) for daily pressure cookers (including electric pressure cookers). 2 Normative references The 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 528 Determination of tensile stress-strain properties of vulcanized rubber or thermoplastic rubber GB/T 529 Rubber, vulcanized or thermoplastic — Determination of tear strength (trouser-shaped, right-angled and crescent-shaped test specimens) GB/T 531.1 Rubber, vulcanized or thermoplastic, test method for indentation hardness Part 1.Shore hardness method GB/T 2828.1 Sampling procedures for inspection by attributes Part 1.Sampling plans for batch inspection based on acceptance quality limit (AQL) GB/T 2941 Rubber physical test methods - General procedures for specimen preparation and conditioning GB/T 3512 Vulcanized rubber or thermoplastic rubber - Hot air accelerated aging and heat resistance tests GB 4806.11 National Food Safety Standard Rubber Materials and Products for Food Contact GB/T 7759.1 Vulcanized rubber or thermoplastic rubber - Determination of compression set - Part 1.At room temperature and elevated temperature GB 13623-2003 Safety and performance requirements for aluminum pressure cookers GB 31603 National Food Safety Standard General Hygienic Specification for the Production of Food Contact Materials and Articles 3 Terms and Definitions There are no terms or definitions that require definition in this document. 4 Requirements 4.1 Manufacturing The manufacturing process of sealing rings should comply with the requirements of GB 31603. 4.2 Basic Structure The basic structure diagram of the sealing ring is shown in Figure 1.
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