T/DGTA 001-2023 Active

Scope: This document specifies the terms and definitions, product classification and grades, raw material requirements, technical requirements, test methods, inspection rules and markings, packaging, transportation, and storage of polypropylene meltblown nonwoven fabrics for masks (referred to as "meltblown fabrics for masks"). This document applies to meltblown nonwoven fabrics for masks produced by the meltblown method, but not to children's masks meltblown fabrics. Main technical content: 1. Scope: This document specifies the terms and definitions, product classification and grades, raw material requirements, technical requirements, test methods, inspection rules and markings, packaging, transportation, and storage of polypropylene meltblown nonwoven fabrics for masks (referred to as "meltblown fabrics for masks"). This document applies to meltblown nonwoven fabrics for masks produced by the meltblown method, but not to children's masks meltblown fabrics. 2. Normative references: The content of the following documents is an integral part of this document through normative references. Among them, the referenced documents with a specified date apply only to the version corresponding to that date; the latest version (including all amendment sheets) of the non-referenced documents applies to this document. GB/T 250 - Textile color fastness test evaluation of discoloration using gray sample cards GB/T 2626-2019 - Self-priming particulate respirators for respiratory protection GB/T 2912.1 - Determination of formaldehyde in textiles - Part 1: Free and hydrolyzed formaldehyde (water extraction method) GB/T 4666 - Determination of length and width of textile fabrics GB/T 15979-2002 - Hygiene standards for disposable hygiene products GB/T 18401-2010 - Basic safety technical specifications for national textile products GB/T 24218.1 - Test methods for nonwoven fabrics - Part 1: Determination of mass per unit area GB/T 24218.3 - Test methods for nonwo