"This document stipulates the basic requirements, evaluation indicators and requirements, evaluation methods and classification of nylon 66 industrial filament product quality and corporate standard levels. This document is applicable to nylon 66 industrial filament with a linear density range of 500dtex~3000dtex Product quality and enterprise standard level evaluation. Relevant agencies can refer to this document when conducting quality classification and enterprise standard level assessment, "leader" evaluation and related certifications. Relevant enterprises can also refer to this document when formulating enterprise standards. "
T/CNTAC 178-2023 history
2023T/CNTAC 178-2023 Assessment requirements for quality grading and forerunner —Polyamide 66 filament yarns for industry