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GB/T 41382-2022: Fire tests - Open calorimetry - Measurement of the rate of production of heat and combustion products for fires of up to 40MW
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Fire tests - Open calorimetry - Measurement of the rate of production of heat and combustion products for fires of up to 40MW
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GB/T 41382-2022
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Basic data | Standard ID | GB/T 41382-2022 (GB/T41382-2022) | | Description (Translated English) | Fire tests - Open calorimetry - Measurement of the rate of production of heat and combustion products for fires of up to 40MW | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | C80 | | Word Count Estimation | 30,395 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 41382-2022: Fire tests - Open calorimetry - Measurement of the rate of production of heat and combustion products for fires of up to 40MW
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Fire tests -- Open calorimetry -- Measurement of the rate of production of heat and combustion products for fires of up to 40MW
ICS 13.220.40
CCSC80
National Standards of People's Republic of China
Fire Test Open Calorimeter Method 40MW
Determination of the following fire heat release rates and combustion products
(ISO 24473.2008, MOD)
Published on 2022-04-15
2022-04-15 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration
directory
Preface I
Introduction II
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Test principle 2
5 Test device 2
6 Calculation of flue gas and heat release 5
7 Specimen Mounting 5
8 Ignition source 5
9 System Calibration 5
10 Test procedure 5
11 Test report 6
Appendix A (informative) Comparison of this document with ISO 24473.2008 chapter numbering 8
Appendix B (informative) Technical differences between this document and ISO 24473.2008 and their reasons11
Appendix C (informative) Design of fume hood and exhaust duct 13
Appendix D (informative) Measuring instruments in smoke exhaust ducts 16
Appendix E (Informative) Step 18 to Check Oxygen Analyzer Stability
Appendix F (informative) Optical measurement systems in smoke exhaust ducts 19
Appendix G (Normative) Calculations 21
Appendix H (Informative) Ignition Sources 24
Appendix I (informative) n-heptane oil pool fire calibration 25
Reference 26
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.
The modification of this document adopts ISO 24473.2008 "Fire test open calorimeter method below 40MW fire heat release rate and
Determination of Combustion Products".
Compared with ISO 24473.2008, this document has more structural adjustments. Comparison list of structure number changes between two files
See Appendix A.
Compared with ISO 24473.2008, this document has many technical differences. In the outer margins of the clauses involved, vertical
A single line (|) is marked. See Appendix B for a list of these technical differences and their reasons.
The following editorial changes have been made to this document.
--- Deleted the introduction of the International Standard and redrafted the introduction;
--- Modified normative references;
--- Revised references;
---Informative Appendix A (informative) is added to compare the chapter number of this document with the ISO 24473.2008 chapter number;
--- Added informative appendix B (informative) technical differences between this document and ISO 24473.2008 and their reasons;
--- Added informative appendix I (informative) n-heptane oil pool fire calibration.
Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents.
This document is proposed by the Ministry of Emergency Management of the People's Republic of China.
This document is under the jurisdiction of the National Fire Standardization Technical Committee (SAC/TC113).
This document is drafted by. Sichuan Fire Research Institute, Ministry of Emergency Management.
The main drafters of this document. Yang Xiaohan, He Xuechao, Deng Ling, Lu Guojian, Mei Xiujuan, Jiang Yaqiang.
Introduction
The heat release rate in the fire is an important parameter to characterize the severity of the fire.
Accurate determination can quantitatively characterize relevant combustion performance parameters such as heat release rate, total heat release, smoke production rate and total smoke production. this document
Provides a test method for the determination of fire heat release rate and combustion products below 40MW - open calorimeter method. test sample
It was placed under the conical smoke collecting hood and ignited with the specified ignition source to evaluate the combustion behavior and combustion performance of the sample. can be tested by
Obtain the combustion characteristic data of the sample during the entire combustion stage; reflect the danger of the sample burning and the impact on adjacent areas by testing the heat release rate
The potential impact of the test smoke density reflects the impact of the burning of the sample on the visibility of the fire area and the impact of the smoke on personal safety.
Danger.
Fire Test Open Calorimeter Method 40MW
Determination of the following fire heat release rates and combustion products
1 Scope
This document specifies the requirements of the heat release rate test device and measuring instrument for the physical fire test under the specified test conditions.
Seek and test method.
This document is suitable for evaluating the development of fire after single or multiple specimens are ignited using a specified ignition source.
The heat release rate and combustion products of the sample after combustion.
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 25207 Fire test method for solid room fire test surface products (GB/T 25207-2010, ISO 9705.1993,
MOD)
GB/T 27904 Test method for combustion performance of flame ignition furniture and components
GB/T 38309 Guidelines for the Test of Toxicity Components in Fire Smoke Flow by FTIR Analysis of Gas Components in Fire Smoke (GB/T 38309-
2019, ISO 19702.2015, MOD)
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
heatreleaserate
HRR
Under specified conditions, the heat released by the combustion of the sample per unit time.
Note. The unit is kilowatt (kW).
3.2
totalheatrelease
THR
Under specified conditions, the total heat released by the combustion of the sample within the specified time.
Note. That is, the integral value of the heat release rate (3.1) in the specified time, the unit is megajoule (MJ).
3.3
smokeproductionrate
The amount of smoke generated per unit time.
Note. The unit is square meters per second (m2/s).
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