GB/T 38252-2019Test method of fire-resistant integrity for building windows and doors (English PDF)
建筑门窗耐火完整性试验方法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
December 10, 2019
Implementation date
November 1, 2020
Scope
GB/T 38252-2019 is the English-translated version of 建筑门窗耐火完整性试验方法.
GB/T 38252-2019 is the Chinese standard "Test method of fire-resistant integrity for building windows and doors".
Its scope clause reads: This standard specifies the terms and definitions, classification, test devices, test pieces and installation, test conditions, test procedures, test results and judgment, and test reports of test method of fire-resistant integrity for building windows and doors.
This standard is applicable to building windows and doors with fire-resistant integrity requirements, but not to fireproof windows and doors. Its clauses include terms and definitions; classification; test device.
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Document preview — GB/T 38252-2019
National Standard of the People's Republic of China
- ICS
- 91.060.50
- Classification
- P 32
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword i
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Classification
- 5 Test device
- 6 Test pieces and installation
- 7 Test conditions
- 8 Test procedure
- 9 Test results and judgment
- 10 Test report
- Annex A (Informative) Standard test piece specification of fire-resistant integrity test for building windows and doors
1 Scope
This standard specifies the terms and definitions, classification, test devices, test pieces and installation, test conditions, test procedures, test results and judgment, and test reports of test method of fire-resistant integrity for building windows and doors.
This standard is applicable to building windows and doors with fire-resistant integrity requirements, but not to fireproof windows and doors.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced documents (including any amendment) applies.
GB/T 5823 Terminology for building windows and doors
GB/T 5907.1 Fire protection vocabulary - Part 1: General Terms
GB/T 9978.1-2008 Fire-resistance tests - Elements of building construction - Part 1: General requirements
GB/T 26784-2011 Fire resistance test for elements of building construction - Alternative and additional procedures
GB/T 31433-2015 General specification for building curtain walls, windows and doors
3 Terms and definitions
For the purposes of this standard, the following terms and definitions given in GB/T 5823 and GB/T 5907.1 and the following apply.
3.1
fire-resistant integrity of windows and doors ability of building windows and doors, with a certain side of exposed to fire, to prevent the penetration of flame and hot gas or to prevent flame from appearing on the unexposed side within a certain period of time under the test conditions specified in this standard
3.2 outside fire curve
standard curve for simulating time-temperature relationship of fire in outdoor space
3.3 inside fire curve
standard curve for simulating time-temperature relationship of fire in indoor space
3.4 fire-resistant time
fire resistance limit of test piece to maintain integrity in the fire integrity test of windows and doors
4 Classification
4.1 Classification index
The fire-resistant integrity of building windows and doors is expressed by E, and the fire-resistant time is taken as the classification index; the fire-resistant time is expressed by t in min.
4.2 Classification requirements
The fire-resistant integrity of building windows and doors shall be classified by indoor and outdoor exposed side, with indoor side indicated by "i" and outdoor side indicated by "o". See Table 1 for classification and index values.
Table 1 Classification table of fire-resistant integrity
Classification Code
Exposed side Indoor side E30(i) E60(i)
Outdoor side E30(o) E60(o)
Fire-resistant time (t)/min 30 <= t < 60 t >= 60
5 Test device
5.1 Test furnace
The test furnace shall meet the requirements of 5.2 of GB/T 9978.1-2008 and the following:
a) The clearance dimension of the installation opening of the test piece shall not be less than 3000 mm × 3000 mm; when the dimension of the test piece is smaller than the installation opening, the test piece shall be installed in the support frame and firmly installed in the opening;
b) It shall be able to set and control the temperature in the furnace to meet the requirements of 7.1;
c) It shall be able to control and monitor the pressure of hot flue gas in the furnace to meet the requirements of 7.2.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
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