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GB/T 47798-2026Drain cover pads for dangerous goods spillage (English PDF)

危险货物泄漏下水道口堵漏垫

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

July 2, 2026

Implementation date

November 1, 2026

Scope

GB/T 47798-2026 is the English-translated version of 危险货物泄漏下水道口堵漏垫.

GB/T 47798-2026 covers drain cover pads, the gaskets laid over sewer drain openings to seal them when dangerous goods leak.

It sets basic requirements, describes structure, classification and specifications, and gives appearance and performance requirements, with test methods, inspection rules, and requirements for usage information, labelling, packaging and storage.

A normative appendix provides chemical resistance test methods. It applies to the design and manufacture of these leak sealing pads for dangerous goods spillage at sewer openings.

Issued on 2 July 2026 and applicable from 1 November 2026. Its normative references include test methods for rubber and for a range of laboratory reagents.

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Document preview — GB/T 47798-2026

National Standard of the People's Republic of China

ICS: 03.220.20
Classification: R 12

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Foreword
1 Scope
2 Normative references
3 Terms and Definitions
4 Basic Requirements
5 Structure, classification, and specifications
6 Appearance and performance requirements
7 Test Methods
8 Inspection Rules
9 Usage information, labeling, packaging and storage
Appendix A (Normative) Chemical Resistance Test Methods
References

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents".

1 Scope

This document specifies the basic requirements, structure, classification, and specifications of leak sealing gaskets (hereinafter referred to as "leaking gaskets") for dangerous goods leaks into sewer drains.

The document describes the dimensions, appearance and performance requirements, inspection rules, marking, packaging and storage, as well as the corresponding test methods and usage information.

This document applies to the design and manufacture of leak sealing gaskets for dangerous goods spillage in sewer openings.

2 Normative references

For references to documents, only the version corresponding to that date applies to this document; for undated references, 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 529-2008 Determination of tear strength of vulcanized rubber or thermoplastic rubber (trouser-shaped, right-angled and crescent-shaped specimens)

GB/T 532 Determination of the bond strength between vulcanized rubber or thermoplastic rubber and fabric

GB/T 622 Chemical Reagents - Hydrochloric Acid

GB/T 631 Chemical Reagent Ammonia

GB/T 676 Chemical Reagent Acetic Acid (Glacial Acetic Acid)

GB/T 679 Chemical Reagents - Ethanol (95%)

GB/T 683 Chemical Reagents - Methanol

GB/T 690 Chemical Reagents Benzene

GB/T 1690-2010 Test methods for resistance to liquids in vulcanized or thermoplastic rubber

GB/T 2828.1-2012 Sampling Procedures for Inspection by Attributes - Part 1: Lot-by-lot Inspection Sampling Indexed by Acceptable Quality Limit (AQL) plan

GB/T 2829-2025 Periodic inspection sampling procedures and tables (applicable to the inspection of process stability)

GB/T 3512 Accelerated aging and heat resistance test of vulcanized rubber or thermoplastic rubber in hot air

GB/T 7762-2014 Static tensile test for ozone cracking resistance of vulcanized rubber or thermoplastic rubber

GB/T 10707-2008 Determination of the flammability of rubber

GB/T 11547 Determination of the resistance of plastics to liquid chemical reagents Constant indentation hardness

3 Terms and Definitions

The following terms and definitions apply to this document.

3.1 Drain cover pad

In the event of leakage or spillage of dangerous goods, it can quickly seal sewer openings (or drain outlets) to prevent the dangerous goods from flowing out. A mat for use in underground drainage systems.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 17 pages — is available in the English PDF.

Referenced standards

Normative references

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