GB/T 38309-2019 English PDF

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GB/T 38309-2019: Toxicity testing of fire effluents - Guidance for analysis of gases and vapours in fire effluents using FTIR gas analysis
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 38309-2019	679	Add to Cart	6 days	Toxicity testing of fire effluents - Guidance for analysis of gases and vapours in fire effluents using FTIR gas analysis	Valid

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Basic data

Standard ID: GB/T 38309-2019 (GB/T38309-2019)
Description (Translated English): Toxicity testing of fire effluents - Guidance for analysis of gases and vapours in fire effluents using FTIR gas analysis
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: C80
Classification of International Standard: 13.220.40
Word Count Estimation: 34,373
Date of Issue: 2019-12-10
Date of Implementation: 2020-04-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 38309-2019: Toxicity testing of fire effluents - Guidance for analysis of gases and vapours in fire effluents using FTIR gas analysis

---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 Smoke Stream Toxic Component Test FTIR Guidelines for Analyzing Gas Components in Fire Smoke) ICS 13.220.40 C80 National Standards of People's Republic of China Fire smoke stream toxic component test Guidelines for FTIR Analysis of Gas Components in Fire Smoke (ISO 19702..2015, MOD) 2019-12-10 release 2020-04-01 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 Principle 2 5 Sampling system 2 5.1 General provisions 2 5.2 Fire test model 2 5.3 Sampling system temperature requirements 2 5.4 Filter 2 5.5 Sampling head 2 5.6 Sampling pipeline 3 5.7 Sampling pump 4 5.8 Gas cell 4 5.9 System response time 4 6 FTIR spectrometer 4 6.1 Installation environment 4 6.2 Detector 4 6.3 Infrared light source 4 6.4 Positioning the prism 4 6.5 Purge 4 6.6 Spectral range 5 6.7 Resolution 5 7 Calibration 5 7.1 Background Noise 5 7.2 Minimum detection limit (LD) and minimum quantitation limit (LQ) 5 7.3 Establishment of quantitative methods 5 8 Test method 6 8.1 General 6 8.2 Daily inspection 6 8.3 Preparation of the sampling system 6 8.4 System Initialization 6 8.5 Sample test 6 8.6 End of test 7 8.7 Data processing 7 9 Test report 7 Appendix A (informative) Structural changes of this standard compared to ISO 19702..2015 8 Appendix B (informative) Technical differences between this standard and ISO 19702..2015 and their causes12 Appendix C (Informative) FTIR Sampling System 14 Appendix D (Normative Appendix) Determination of gas adsorption by filter element and sampling tube 16 Appendix E (Normative) Method for Measuring the Response Time of FTIR Gas Cells and Sampling Systems 17 Appendix F (informative) Spectral parameters 19 Appendix G (informative) Calibration gas preparation method 21 Appendix H (informative) Calibration spectrum 24 Appendix I (informative) Accuracy and precision 27 References 28

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard uses redrafting method to modify and adopt ISO 19702..2015 "Fire Smoke Toxic Component Test FTIR Analysis of Fire Smoke Guidelines for gas components in gas. Compared with ISO 19702..2015, this standard has more structural adjustments.The standard is listed in Appendix A. Checklist with ISO 19702..2015 chapter numbers. There are technical differences between this standard and ISO 19702..2015.The terms related to these differences have passed through the margins on the outer margins. The installed vertical single line (|) is marked, and a list of the technical differences and reasons between this standard and ISO 19702..2015 is given in Appendix B. This standard also makes the following editorial changes. --- deleted references; --- Added informative appendix A and informative appendix B. This standard was proposed by the Ministry of Emergency Management of the People's Republic of China. This standard is under the jurisdiction of the National Fire Standardization Technical Committee (SAC/TC113). This standard was drafted. Sichuan Fire Research Institute of Emergency Management Department, Jiangsu Fire Rescue Corps, Beijing Fire Rescue Corps. The main drafters of this standard. Liu Junjun, He Jin, Gan Ziqiong, Zhu Yaming, Li Yunhao, Liu Yubo, Shu Chang, Tan Yuanlin.

Introduction

The composition of fire smoke is complex, and chemical reactions are easy to occur with each other.The concentration of fire smoke changes greatly in space and time in a short time. When analyzing the composition of the flue gas, it is required that its testing means have high sensitivity and selectivity. Fourier transform infrared spectroscopic gas analysis (FTIR) has the following characteristics that distinguish it from other technologies. --- Can detect multiple gas components; --- Can monitor the change of smoke component concentration with time during the fire; --- If a new component that plays an important role in toxicity is found in the experimental test, the spectrum of the component can be collected from the historical records information. This standard specifies the sampling of fire smoke components using FTIR analysis in small, medium and large fire tests. The composition of the system, the spectral resolution, the requirements for the collection and calibration of the spectrum, and the applicable range of the analysis method are also given. Fire smoke stream toxic component test Guidelines for FTIR Analysis of Gas Components in Fire Smoke

1 Scope

This standard specifies the use of Fourier transform infrared spectroscopic gas analysis technology (FTIR) to analyze carbon monoxide (CO), Carbon oxide (CO2), hydrogen cyanide (HCN), hydrogen chloride (HCl), hydrogen bromide (HBr), nitrogen monoxide (NO), nitrogen dioxide (NO2), and acrolein (CH2CHCHO) and other gas components. This standard applies to the concentration analysis of various gas components in fire smoke, and also applies to other gases that can be analyzed by FTIR technology. Includes hydrogen fluoride (HF) and sulfur dioxide (SO2).

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. ISO 19701..2013 Methods for Sampling and Analysis of Fire Smoke (Methods forsampling and analysis offireeffluents)

3 terms and definitions

The following terms and definitions apply to this document. 3.1 Fourier transform infra-redspectroscopy gasanalysis; FTIR An infrared spectroscopy technique that uses mathematically calculated Fourier transform to measure the concentration of multi-component gases. 3.2 Resolution The ability of a spectrometer to resolve two adjacent frequencies (or wavenumbers) requires that the interval between two bands be at least one of the bands Half. 3.3 Wavenumber The reciprocal of the wavelength. Note. The unit is per centimeter (cm-1). 3.4 Minimum detection limit LD The minimum concentration of a substance to be tested can be detected from a sample within a given degree of reliability. Note. Units are microliters per liter (μL/L). 3.5 Limit ofquantification LQ The lowest concentration of the test substance in the sample that can be quantitatively determined. Note. Units are microliters per liter (μL/L). ......

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