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GB/T 9978.2-2019: Fire Resistance Tests -- Elements of building construction -- Part 2: Guidance on measuring uniformity of furnace exposure on test samples
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| GB/T 9978.2-2019 | English | 359 |
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Fire Resistance Tests -- Elements of building construction -- Part 2: Guidance on measuring uniformity of furnace exposure on test samples
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GB/T 9978.2-2019
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Basic data | Standard ID | GB/T 9978.2-2019 (GB/T9978.2-2019) | | Description (Translated English) | Fire Resistance Tests -- Elements of building construction -- Part 2: Guidance on measuring uniformity of furnace exposure on test samples | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | C82 | | Classification of International Standard | 13.220.50 | | Word Count Estimation | 18,128 | | Date of Issue | 2019-12-10 | | Date of Implementation | 2020-07-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 9978.2-2019: Fire Resistance Tests -- Elements of building construction -- Part 2: Guidance on measuring uniformity of furnace exposure on test samples
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Fire Resistance Tests--Elements of building construction--Part 2. Guidance on measuring uniformity of furnace exposure on test samples
ICS 13.220.50
C82
National Standards of People's Republic of China
Fire test method for building components
Part 2. Fire test specimens exposed to fire
Guide to measuring uniformity of action
FireResistanceTests-Elementsofbuildingconstruction-Part 2.
(ISO /T R834-2..2009, FireResistanceTests-
Elementsofbuildingconstruction-Part 2. Guidanceonmeasuring
uniformityoffurnaceexposureontestsampies, MOD)
2019-12-10 Release 2020-07-01 Implementation
State Administration of Market Supervision
Published by the National Standardization Management Committee
Contents
Foreword III
Introduction IV
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 Test device 1
5 Test procedure 9
6 Test report 9
Appendix A (informative) This section is compared with the article number of ISO /T R834-2..200910
Appendix B (informative) Technical differences between this part and ISO /T R834-2..2009 and their causes 11
Appendix C (informative) Supplementary explanation 12
References 13
Foreword
GB/T 9978 Fire Test Method for Building Elements has been and plans to release the following sections.
--- Part 1. General requirements;
--- Part 2. Guidelines for measuring the uniformity of fire test specimens subjected to fire;
--- Part 3. Test methods and test data application notes;
--- Part 4. special requirements for load-bearing vertical partition members;
--- Part 5. special requirements for load-bearing horizontal partition members;
--- Part 6. special requirements for beams;
--- Part 7. special requirements for columns;
--- Part 8. Special requirements for non-load-bearing vertical partition members;
--- Part 9. special requirements for non-load-bearing suspended ceiling members;
This part is the second part of GB/T 9978.
This section is drafted in accordance with the rules given in GB/T 1.1-2009.
This part uses the redrafting method to modify and adopt ISO /T R834-2..2009 "Fire test building components-Part 2. Fire test
Guidelines for Measuring the Uniformity of Specimen Fires.
Compared with ISO /T R834-2..2009, this section has some structural adjustments.Appendix A lists ISO /T R834-2..2009.
List of chapter number comparisons.
Compared with ISO /T R834-2..2009, there are technical differences in this section.The terms related to these differences have been passed outside the corresponding clauses.
The vertical single line (|) at the margin of the page is marked, and the corresponding technical differences and their causes are listed in Appendix B.
This section is proposed by the Ministry of Emergency Management of the People's Republic of China.
This section is under the jurisdiction of the National Fire Standardization Technical Committee (SAC/TC113).
This section was drafted. Tianjin Fire Research Institute of Emergency Management Department.
The main drafters of this section. Li Xiquan, Li Tao, Li Guohui, Zhao Huali, Hu Yuan, Zheng Wei, Huang Wei, Dong Xuejing, Diao Xiaoliang, Ruan Tao, Ran Lingji,
Wang Yijie and Bai Bin.
Introduction
In accordance with the provisions of GB/T 9978.1, the test method recommended in this standard is used when the test specimen is subjected to a fire test in a fire test furnace.
By measuring parameters such as temperature, air velocity and oxygen content in multiple locations in the test furnace, the uniformity of the specimens under fire can be judged. Push
The recommended test method uses low-cost, easily-available lightweight materials to make sample samples, which can minimize the moisture content between different samples.
The effect of the difference on the test results.
Fire test method for building components
Part 2. Fire test specimens exposed to fire
Guide to measuring uniformity of action
1 Scope
This part of GB/T 9978 specifies a test method for measuring test specimens in a fire test furnace in accordance with GB/T 9978.1.
The uniformity of the fire resistance during the fire test is determined. This section gives parameters such as temperature, air velocity, and oxygen content near the surface of the simulated specimen.
The type and arrangement position of the measuring instrument are simulated. The inside of the simulated specimen is a cold-formed steel skeleton, and the surface of the fire-receiving surface of the specimen is a plasterboard.
This section does not include performance requirements for fire test furnaces.
2 Normative references
The following documents are essential for the application of this document. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest version (including all amendments) applies to this document.
GB/T 9775 Paper Gypsum Board (GB/T 9775-2008, ISO 6308. 1980, MOD)
GB/T 9978.1 Fire resistance test for building components-Part 1. General requirements (GB/T 9978.1-2008, ISO 834-1..1999,
MOD)
3 terms and definitions
The terms and definitions defined in GB/T 9978.1 and the following apply to this document.
3.1
Effectiveareaoffurnaceopening
Refractory test furnace opening area within the boundary of the instrument monitoring range.
4 Test device
4.1 Support structure (simulation test piece)
4.1.1 The support structure is made of cold-formed steel to support the keel.The fire-resistant surface of the support keel is installed with two layers of resistance that meet the requirements of GB/T 9775.
Fire paper surface gypsum board (type H), the thickness of each layer of gypsum board is not less than 16mm; the back fire surface supporting the keel is installed with a thickness of not less than
18mm structural panel.
Note. Use plywood or particle board as a typical structural panel.
4.1.2 In the supporting structure, the detailed assembly structure of cold-formed steel supporting keel, refractory paper-faced gypsum board and structural panel is shown in Figures 1 ~ 6. its
Among them, Figures 1 to 3 are horizontal support structures, and Figures 4 to 6 are vertical support structures. In the support structure shown in the figure, the horizontal support structure is suitable
For horizontal refractory test furnace with opening size of 3m × 4m; vertical support structure is suitable for vertical refractory with opening size of 3m × 3m
Test furnace. For supporting structures used in other open-size fire-resistant test furnaces, the relevant dimensions need to be corrected.
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