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GB/T 17658-2018: Test of burning behavior for flame retardant treated wood -- Method of test for fire propagation
Status: Valid GB/T 17658: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 17658-2018 | English | 279 |
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Test of burning behavior for flame retardant treated wood -- Method of test for fire propagation
| Valid |
GB/T 17658-2018
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| GB/T 17658-1999 | English | 399 |
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Test of burning behaviour for flame retardant treated wood. Method of test for fire propagation
| Obsolete |
GB/T 17658-1999
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PDF similar to GB/T 17658-2018
Basic data | Standard ID | GB/T 17658-2018 (GB/T17658-2018) | | Description (Translated English) | Test of burning behavior for flame retardant treated wood -- Method of test for fire propagation | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | B69 | | Classification of International Standard | 79.040 | | Word Count Estimation | 14,122 | | Date of Issue | 2018-09-17 | | Date of Implementation | 2019-04-01 | | Older Standard (superseded by this standard) | GB/T 17658-1999 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 17658-2018: Test of burning behavior for flame retardant treated wood -- Method of test for fire propagation
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Test of burning behavior for flame retardant treated wood - Method of test for fire propagation
ICS 79.040
B69
National Standards of People's Republic of China
Replace GB/T 17658-1999
Flame retardant wood burning performance test
Fire propagation test method
Published on.2018-09-17
Implementation of.2019-04-01
State market supervision and administration
China National Standardization Administration issued
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 17658-1999 "Test method for fire propagation test of flame retardant wood burning performance". This standard and
Compared with GB/T 17658-1999, the main technical changes except editorial changes are as follows.
--- Expanded the scope of use of the standard (see Chapter 1, Chapter 1 of the.1999 edition);
--- Added normative references (see Chapter 2)
--- Added related terms and definitions (see Chapter 3);
---Modified the requirements of the oven in the auxiliary equipment (see 4.3, 2.3.5 of the.1999 edition);
--- Increased the surface characteristics of the test piece (see 5.1);
--- Revised the thickness of the sample size (see 5.2.1, 3.1.1 of the.1999 edition);
--- Increased sample processing conditions (see 5.2.3);
--- Modified the state adjustment process (see 5.4, 3.3 of the.1999 edition);
--- Increased gas flow rate calculation method in gas supply (see 6.2,.1999 edition 4.2);
--- Revised the ignition record conditions (see 6.3.1e) f),.1999 edition 4.3.1);
--- Increased sample information in the test report (see 8.1);
--- Increased the temperature vs. time curve in the test report (see 8.3);
--- Removed the judgment of qualified conditions for flame retardant performance (see Chapter 6 of the.1999 edition).
This standard was proposed by the National Forestry and Grassland Bureau.
This standard is under the jurisdiction of the National Timber Standardization Technical Committee (SAC/TC41).
This standard is drafted by. Institute of Wood Industry, Chinese Academy of Forestry.
Participated in the drafting of this standard. Nanjing Jiangning Analytical Instrument Co., Ltd., Dehua Bunny Decoration New Material Co., Ltd., Jiusheng Flooring
Co., Ltd., Zhejiang Shenghua Yunfeng New Material Co., Ltd., Zhongshan Connor New Material Co., Ltd., Henan Yongwei Security Co., Ltd.
Dongying Zhenghe Wood Industry Co., Ltd., Guangdong Runcheng Chuangzhan Wood Co., Ltd., Jinan Taixing Fine Chemical Co., Ltd., Deqing County Yunfeng Central
Technology Co., Ltd., Dongguan Huake Dongni Instrument Co., Ltd., Shandong Qiansen Wood Industry Group Co., Ltd., Dongguan Sheng Micro Electromechanical Equipment Technology
Limited company.
The main drafters of this standard. Chen Zhilin, Wang Fuhai, Jiang Peng, Liang Shanqing, Deng Yu, Ye Dianyou, Sun Longxiang, Pang Xiaoren, Zhang Xiuqin, Ren Taiping,
Chen Xincheng, Guan Runkai, Bai Zhenhua, Zhao Yongxuan, Li Zhun, Wang Xuqing, Xia Keyu.
The previous versions of the standards replaced by this standard are.
---GB/T 17658-1999.
Flame retardant wood burning performance test
Fire propagation test method
1 Scope
This standard specifies the test method for the combustion performance of fire-retardant wood materials under fire conditions such as fire propagation index and weight loss rate.
This standard applies to the testing of the burning properties of wood, wood-based panels and other wood composites.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 16839.1 Thermocouple Part 1. Index Table
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Calibration curve calibrationcurve
The calibration plate is used for measurement, and the temperature difference between the temperature in the chimney and the initial temperature is continuously recorded by the thermocouple to change with time.
Curve.
3.2
Fire propagation index firepropagationindex
The difference between the temperature and the starting temperature in the chimney is continuously recorded by a thermocouple, and the obtained result is compared with the calibration curve, and two times are used at the same time.
The temperature difference indicated by the bar curve is then calculated by the formula.
3.3
Weight loss rate weightlossratio
The mass loss after combustion of the sample and the percentage of mass before combustion.
3.4
Fire surface exposedsurface
The test piece is placed under flame burning conditions and in contact with the flame to burn the surface.
4 test equipment
4.1 Burning device
4.1.1 Burning device diagram
See Figure 1 and Figure 2 for the combustion unit.
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