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GB/T 41336-2022Classification and test method for fire resistant performance of curtain wall (English PDF)

建筑幕墙防火性能分级及试验方法

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

March 9, 2022

Implementation date

October 1, 2022

Scope

GB/T 41336-2022 is the English-translated version of 建筑幕墙防火性能分级及试验方法.

GB/T 41336-2022 classifies the fire resistance performance of a building curtain wall and gives the method by which it is tested.

It sets the classification itself and then the test equipment and instruments, the test conditions, the requirements on the specimen, its installation and the test area, the arrangement of the measuring instruments, the test procedure, the results and how they are judged, and the test report.

It applies to the fire resisting parts of a curtain wall, that is fire resisting curtain walls, fire aprons, the fire stopping between floors and the fire stopping at partition walls.

Curtain wall contractors, fire laboratories and building authorities use it. Issued on 9 March 2022, it has applied since 1 October 2022.

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Document preview — GB/T 41336-2022

National Standard of the People's Republic of China

ICS: 91.060.10
Classification: P 32

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

Preface
1 Scope
2 Normative references
3 Terms and Definitions
4 Fire performance classification
5 Test equipment and instruments
6 Test conditions
7 Specimen Requirements
8 Specimen installation and testing area
9 Measuring instrument arrangement
10 Test procedure
11 Test results and judgment
12 Test report

Foreword

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

1 Scope

This document specifies the fire performance classification of building curtain walls, test equipment and instruments, test conditions, test piece requirements, test piece installation and test area domain, measuring instrument arrangement, test procedure, test results and judgment and test report.

This document is applicable to the fire protection of building curtain wall fire protection structure (including fire curtain wall, fire skirt wall, interlayer fire blocking and partition wall fire blocking) Performance classification and testing.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document.

GB/T 5907.1 Fire Fighting Vocabulary Part 1: General Terms

GB/T 9978.1 Fire resistance test method for building components - Part 1: General requirements

GB/T 12513 Fire resistance test method for glass-inlaid components

GB/T 26784 Optional and additional test procedures for fire resistance test of building components

GB/T 34327 Terms of Building Curtain Wall

3 Terms and Definitions

The terms and definitions defined in GB/T 5907.1, GB/T 34327 and the following apply to this document.

3.1 Fire stopping of the curtain wall

It is located in the inter-story floor or fire partition wall, and has certain fire resistance, which can block the gap of flame, smoke spread or heat transfer. and peripheral protection measures.

3.2 Fire resistance performance of the curtain wall

Under standard test conditions, the ability of building curtain wall fire protection structure to meet the requirements of fire integrity, fire insulation or radiant heat reduction.

3.3 Fire curtain wall

The curtain wall structure is located at the opening of the exterior wall of the building and is used to prevent the spread of indoor and outdoor fires.

3.4 Fire apron

It is located between the outer wall of the building and the opening on the lower floor, and is used to prevent the spread of indoor and outdoor fires.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 21 pages — is available in the English PDF.

Referenced standards

Normative references

Similar standards

GB/T 47628-2026|GB/T 30593-2025|GB/T 46825-2025|GB/T 46826-2025|GB/T 23450-2024|GB/T 23451-2023

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