GB/T 42704-2023 英文版/外文版（bzfyw.com） 汽車內(nèi)飾用紡織材料揮發(fā)性有機(jī)物的測(cè)定?箱體法 GB/T 42704-2023 英文版/外文版 Textile trim materials in automotive interior applications - Determination of the emissions of volatile organic compounds - Chamber method GB/T 42704-2023 英文版/外文版 GB/T 42704-2023 英文版/外文版 ? 前言 本文件按照GB/T 1,1—2020《標(biāo)準(zhǔn)化工作導(dǎo)則瞭第1部分:標(biāo)準(zhǔn)化文件的結(jié)構(gòu)和起草規(guī)則》的規(guī)定起草。 請(qǐng)注意本文件的某些內(nèi)容可能涉及專利。本文件的發(fā)布機(jī)構(gòu)不承擔(dān)識(shí)別專利的責(zé)任。本文件由中國(guó)紡織工業(yè)聯(lián)合會(huì)提出。 本文件由全國(guó)紡織品標(biāo)準(zhǔn)化技術(shù)委員會(huì)(SAC/TC 209)歸口。 ? 汽車內(nèi)飾用紡織材料 揮發(fā)性有機(jī)物的測(cè)定?箱體法 1?范圍 本文件描述了采用箱體法收集并測(cè)定汽車內(nèi)飾用紡織材料揮發(fā)性有機(jī)物釋放量的試驗(yàn)方法。本文件適用于各類汽車內(nèi)飾用紡織材料,包括機(jī)織物.針織物,非織造布和涂層織物,以及復(fù)合織物。 2?規(guī)范性引用文件 下列文件中的內(nèi)容通過文中的規(guī)范性引用而構(gòu)成本文件必不可少的條款。其中,注日期的引用文件,僅該日期對(duì)應(yīng)的版本適用于本文件;不注日期的引用文件,其最新版本(包括所有的修改單)適用于本文件。 HJ/T 400——2007車內(nèi)揮發(fā)性有機(jī)物和醛酮類物質(zhì)采任測(cè)定方法 3?術(shù)語和定義 下列術(shù)語和定義適用于本文件。 3.1 總揮發(fā)性有機(jī)化合物total volatile organic compounds: TVOC 利用Tenax管采樣,非極性色譜柱(極性指數(shù)小于10)進(jìn)行分析,保留時(shí)間在正己烷和正十六烷之間的揮發(fā)性的有機(jī)化合物。 3.2 總碳?xì)浠衔镔|(zhì)量濃度total hydrocarbon mass concentration 使用氫火焰離子化檢測(cè)器(FID)測(cè)得的所有氣態(tài)碳?xì)浠衔锏馁|(zhì)量總和除以規(guī)定氣壓和溫度條件下干燥氣體的體積所得的商。 3.3 揮發(fā)性有機(jī)化合物volatile organic compounds : VOC 從樣品中釋放并能夠在試驗(yàn)箱出口氣體中檢測(cè)到的有機(jī)化合物。 3.4 試驗(yàn)箱test chamber 能模擬特定溫濕度條件,可密封,用于收集汽車內(nèi)飾紡織材料揮發(fā)性有機(jī)物的設(shè)備。 3.5 氣體交換速率air change rate 單位時(shí)間內(nèi)試驗(yàn)箱進(jìn)氣量與箱體容積的比值。 3.6 氣流速度airflow speed 試驗(yàn)箱內(nèi)由于氣體流動(dòng)產(chǎn)生的空氣流的平均速度,其速度的測(cè)量點(diǎn)位于箱體中心點(diǎn)。 3.7 箱體容積chamber capacity 扣除試驗(yàn)箱內(nèi)所有安裝裝置的體積后的試驗(yàn)空間有效體積。 3.8 產(chǎn)品負(fù)載率product loading factor 產(chǎn)品在實(shí)際使用時(shí)暴露在環(huán)境中的面積與箱體容積的比值。 3.9 Tenax 管Tenax tube 玻璃或不銹鋼吸附管,內(nèi)部裝有粒徑為250 μm~180 μm(60目~80目)的固體吸附材料。 注:通常采用Tenax-TA管較多﹐也能采用其他填料的吸附管。 3.10 DNPH管DNPH tube 填充了涂漬2,4-二硝基苯肼(DNPH)硅膠的采樣管。 4原理 將試樣放入試驗(yàn)箱內(nèi),在規(guī)定的溫度﹑濕度及氣體交換速率下加熱,通過在線氫火焰離子化檢測(cè)器(FID),對(duì)采樣環(huán)境進(jìn)行實(shí)時(shí)監(jiān)測(cè)，一定時(shí)間后利用采樣管收集箱內(nèi)氣體,通過氣相色譜/質(zhì)譜聯(lián)用儀(GC-MS)和高效液相色譜儀(HPLC),對(duì)采集到的苯系物和醛酮類物質(zhì)(見附錄A)進(jìn)行定性和定量測(cè)定。 ? Foreword ? This standard is developed in accordance with the rules given in GB/T 1,1-2020 Directives for standardization - Part 1: Rules for the structure and drafting of standardizing documents. Attention is drawn to the possibility that some of the parts of this document may be the subject of patent rights. The issuing body of this document shall not be held responsible for identifying any or all such patent rights. This document was proposed by the China National Textile and Apparel Council. This document is under the jurisdiction of the National Technical Committee on Textiles of Standardization Administration of China (SAC/TC 209). ? Textile trim materials in automotive interior applications - Determination of the emissions of volatile organic compounds - Chamber method 1?Scope This document describes a test method for collecting and determining the emissions of volatile organic compounds from textile trim materials for automotive interiors by the chamber method. This document is applicable to all types of textile trim materials in automotive interior applications, including woven fabrics, knitted fabrics, nonwovens and coated fabrics, and composite fabrics. 2?Normative references The following documents contain requirements which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. HJ/T 400-2007 Determination of volatile organic compounds and carbonyl compounds in cabin of vehicles 3?Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 total volatile organic compounds; TVOC? volatile organic compounds with retention time between n-hexane and n-hexadecane when sampled by Tenax tube and analyzed with a non-polar column (polarity index: <10) 3.2 total hydrocarbon mass concentration quotient obtained by dividing the sum of the masses of all gaseous hydrocarbons measured using a hydrogen flame ionization detector (FID) by the volume of the dry gas at a specified pressure and temperature 3.3 volatile organic compounds; VOC organic compounds released from samples that can be detected in the outlet gas of the test chamber 3.4 test chamber equipment that can simulate specific temperature and humidity conditions, can be sealed, and is used for collecting volatile organic compounds from textile trim materials in automotive interior 3.5 air change rate ratio of air intake to chamber capacity in unit time 3.6 airflow speed average airflow speed produced by gas flow in the test chamber which is measured at the center of the chamber 3.7 chamber capacity effective volume of test space after deducting the volume of all installed devices in the test chamber 3.8 product loading factor ratio of the area exposed to the environment and the chamber volume when the product is actually used 3.9 Tenax tube glass or stainless-steel adsorption tube, inside which is filled with solid adsorption material with particle size of 250 μm ~ 180 μm (60 mesh ~ 80 mesh) Note: Tenax-TA tubes are usually used, and adsorption tubes with other packing can also be used. 3.10 DNPH tube sampling tube filled with 2,4-dinitrophenylhydrazine (DNPH) silicone gel 4?Principle Place the sample in the test chamber and heat it at the specified temperature, humidity, and gas exchange rate. Real time monitoring of the sampling environment is carried out using an online hydrogen flame ionization detector (FID). After a certain period of time, the gas inside the chamber is collected using a sampling tube. Qualitative and quantitative determination of the collected benzene series and aldehydes and ketones (see Annex A) is carried out using gas chromatography/mass spectrometry (GC-MS) and high-performance liquid chromatography (HPLC).