GB/T 34749-2017 English PDF

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GB/T 34749-2017: Fire-resistance tests for wood and wood composite material -- Cone calorimeter method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 34749-2017	279	Add to Cart	3 days	Fire-resistance tests for wood and wood composite material -- Cone calorimeter method	Valid

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Basic data

Standard ID: GB/T 34749-2017 (GB/T34749-2017)
Description (Translated English): Fire-resistance tests for wood and wood composite material -- Cone calorimeter method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H69
Classification of International Standard: 79.010
Word Count Estimation: 14,194
Date of Issue: 2017-11-01
Date of Implementation: 2018-05-01
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

GB/T 34749-2017: Fire-resistance tests for wood and wood composite material -- Cone calorimeter method

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Fire-resistance tests for wood and wood composite material-Cone calorimeter method ICS 79.010 B69 National Standards of People's Republic of China Fire resistance testing of wood and wood composites Cone calorimeter method Posted.2017-11-01 2018-05-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. Please note that some of this document may be patentable. The issuing agencies of this document do not bear the responsibility of identifying these patents. This standard proposed by the State Forestry Administration. This standard by the National Wood Standardization Technical Committee (SAC/TC41) centralized. This standard was drafted by Beijing Huatai Science and Technology Co., Ltd., China Academy of Forestry Wood Industry Research Institute, Nanjing Jiangning points Instrument Co., Ltd., Xiamen City Gelin Biotechnology Co., Ltd., Dongguan Huake Tony Instrument Co., Ltd. The main drafters of this standard. Rowan St., Wu Yu Zhang, Wang Fuhai, Chen Zhiyong, Lee quasi. Fire resistance testing of wood and wood composites Cone calorimeter method

1 Scope

This standard specifies the use of cone calorimetry wood and wood composites fire resistance evaluation test methods. This standard applies to wood, bamboo, wood-based panels and their combination of composite materials, wood and other materials with each other group Composites composites fire resistance testing.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 5907.1 Firefighting vocabulary - Part 1. General terms Fire resistant test methods for doors and roller blinds GB/T 7633-2008 GB/T 9978.1 fire test methods for building components - Part 1. General requirements Test methods for heat release rate of building materials GB/T 16172-2007 GB/T 16839.1 Thermocouples Part 1. Index table

3 Terms and definitions

GB/T 5907.1, GB/T 7633-2008, GB/T 9978.1, GB/T 16172 and GB/T 16839.1 as defined by the following The terms and definitions apply to this document. 3.1 The Burningsurface Exposed to the surface of the specimen under the conical calorimeter cone. 3.2 Backfire surface backfiresurface Surface symmetrical to the fireside of the specimen.

4 symbol

Symbols and their meanings are shown in Table 1. Table 1 symbols and their significance Symbol meaning unit As sample initial exposed surface area m2 C orifice flow meter calibration constant m1/2 · g1/2 · K1/2 Δhc Net heat of combustion kJ · g-1 ......

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