美利体育登录入口官网

美利体育登录入口官网:ISO 19702:2015
使用傅里叶变换红外光谱法 (FTIR) 对火灾烟气中有毒气体和蒸汽的采样和分析指南

Guidance for sampling and analysis of toxic gases and vapours in fire effluents using Fourier Transform Infrared (FTIR) spectroscopy


标准号
ISO 19702:2015
发布
2015年
国际标准分类(ICS)
13.220.01 消防综合   
总页数
76页
中文版
GB/T 38309-2019 (修改采用的中文版本)
发布单位
国际标准化组织
替代标准
ISO 19702:2024
当前最新
ISO 19702:2024
 
 
引用标准
ASTM E1421-91 EN 45545-2:2013 ISO 5660-1:2002 ISO 57 ISO 5725-1 Technical Corrigendum 1:1998 ISO 5725-1:1994 ISO 5725-2 Technical Corrigendum 1:2002 ISO 5725-2:1994 ISO 5725-3 Technical Corrigendum 1:2001 ISO 5725-3:1994 ISO 5725-4:1994 ISO 5725-5:1998
 
 
本体
傅里叶变换红外光谱 采样系统
适用范围
This International Standard specifies requirements and makes recommendations for sampling systems for use in small and large-scale fire tests, for the selection of parameters and use of the FTIR instrument itself and for collection and use of calibration spectra. The primary purpose of the methods is to measure the concentrations of chemical species in fire effluents which may be used to: a) provide data for use in combustion toxicity assessment without requiring biological studies, b) allow the calculation of yield data in fire characterisation studies, c) provide data for use in mathematical modelling of hazard to life from the fire effluent by characterising the effluent composition generated by physical fire models, d) characterise the effluent composition of small scale physical models and larger scale fires for comparative purposes, e) assist in the validation of numerical fire models, f) set the conditions for exposure in biological studies if required, g) monitor biological studies where used, and h) assist in the interpretation of biological studies where used. This International Standard specifies principles of sampling and methods for the individual analysis, in fire effluents, of airborne volume fractions of carbon monoxide (CO), carbon dioxide (CO2), hydrogen cyanide (HCN), hydrogen chloride (HCl), hydrogen bromide (HBr), nitric oxide (NO), nitrogen dioxide (NO2), and acrolein (CH2CHCHO). Calibration methods are provided in this International Standard. Guidance is also given on the recommended cleaning, servicing and operating checks and procedures to be carried out on the FTIR instrument and the sampling systems which are considered essential to maintain the instrument in a suitable condition for use in fire effluent analysis. Conformance with this International Standard implies that the sampling procedure used is in accordance with current internationally accepted 'best practice' for the applications described and that the analytical procedure has been carried out with due regard to the restraints imposed by the nature of the fire effluent atmosphere and the limitations of the FTIR methodology itself.
术语描述
Apoaization (切趾)
apodisation
纠正傅里叶变换红外光谱法中获得的理论干涉图偏差的数学过程。该过程会加宽吸收带,从而降低分辨率。
干涉图
interferogram
由两束具有相同波长的单色电磁辐射在具有不同光程长度后相互作用形成的可变辐射强度图案。
分辨率
resolution
光谱仪区分两个相邻频率(或波数)的能力,数学上定义为产生两个至少相隔其中一个强度一半的谱带的分离度。
分光光度计
spectrophotometer
用于将电磁辐射能量色散成光谱并测量某些属性(如波长、能量或折射率)的仪器,例如作为定性及定量测定与辐射能选择性相互作用的化学物种的基础。
波长的真度
trueness in wavelength
给定光谱仪在特定波长或波数处提供准确辐射通量的能力。
波数
wavenumber
电磁辐射波长的倒数。波数以 reciprocal centimetres (cm??) 表示。
零填充
zero filling
应用于稀疏数据的校正技术,通过数学回归生成中间数据点。

美利体育登录入口官网: ISO 19702:2015 中提到的仪器美利体育官网首页网址

傅里叶变换红外光谱仪
用于火灾排放物中气体和蒸汽采样的仪器,包含干涉仪、红外光源、光学池和探测器。
氮化三甘氨酸硫酸盐探测器

DTGS
一种可在环境温度下工作的红外探测器,线性度优于MCT探测器但灵敏度较低。
汞镉碲探测器

MCT
一种高灵敏度的红外探测器,通常需要冷却,灵敏度可达DTGS探测器的10倍。

美利体育登录入口官网: 专题


美利体育登录入口官网: ISO 19702:2015相似标准


美利体育登录入口官网: 谁引用了ISO 19702:2015 更多引用





Copyright ?2007-2026 ANTPEDIA, All Rights Reserved
京ICP备07018254号 京公网安备1101085018 电信与信息服务业务经营许可证:京ICP证110310号
页面更新时间: 2026-09-13 18:34

美利体育(meili)官方网站_美利体育手机版下载