Standard No.:	DB32/T 4705.2-2024
English Name:	Face mask-Determination of toxic and hazardous substances- Part 2: The banned azo colourants
Chinese Name:	口罩 有毒有害物质的测定 第2部分：禁用偶氮染料
Chinese Classification:	W55    Textile articles in general
Professional Classification:	DB    Provincial Standard
ICS Classification:	59.080.99 59.080.99    Other products of the textile industry 59.080.99
Issued by:	Jiangsu Adminstration of Market Regulation
Issued on:	2024-02-26
Implemented on:	2024-3-26
Status:	valid
Language:	English
File Format:	PDF

本文件描述了采用气相色谱-质谱联用仪（GC-MS）和高效液相色谱仪-二极管阵列检测器（HPLC-DAD）测定口罩中禁用偶氮染料含量的原理、试剂、仪器和装置、分析步骤、结果计算与表示、定绒限和精密度以及试验报告。
本文件适用于口罩产品中禁用偶氮染料的测定。