GB/T 20218-2021
Biaxially oriented polyamide (nylon) film

This is a product specification for polyamide film primarily made from polycaprolactam (nylon 6), produced via the flat film method with biaxial stretching. The standard comprehensively defines the quality requirements for this product, including indicators such as thickness and appearance, and specifies test methods for various physical and mechanical properties, such as tensile strength, thermal shrinkage, light transmittance, and oxygen transmission rate. To conduct these tests, in addition to general analytical balances, various specialized testing instrument standards are referenced, including thickness gauges for thickness measurement, tensile testing machines for tensile property evaluation, haze meters for optical performance assessment, and differential pressure gas permeation analyzers for gas barrier testing.

This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
Status Active
CCS Y28 ICS 83.140.10
Release Date 2021-03-09 00:00:00 Implementation Date 2021-09-01 00:00:00