Standard No.:	GB/T 19789-2021
English Name:	Packaging material—Test method for oxygen gas permeability characteristics of plastic film and sheeting—Coulometric sensor
Chinese Name:	包装材料 塑料薄膜和薄片氧气透过性试验 库仑计检测法
Chinese Classification:	A83    Packaging method
Professional Classification:	GB    National Standard
Issued by:	SAMR; SAC
Issued on:	2021-10-11
Implemented on:	2022-5-1
Status:	valid
Superseding:	GB/T 19789-2005 Packaging materials—Test method for oxygen gas permeability characteristics of plastic film and sheeting—Coulometric sensor
Language:	English
File Format:	PDF
Word Count:	6500 words
Price(USD):	195.00
Delivery:	via email in 1~3 business day

本文件规定了库仑计检测法测试塑料薄膜和薄片等包装材料的氧气透过性的试验原理、试样、试样状态调节和试验环境、仪器与材料、扩散条件、试验步骤、结果计算、试验结果，以及试验报告。
本文件适用于塑料薄膜、薄片、复合材料、纸塑复合材料、塑料涂覆织物等包装材料的氧气透过性的测试。