Standard No.:	GB/T 20220-2006
English Name:	Plastics - Film and sheeting - Determination of average thickness of a sample, and average thickness and yield of a roll, by gravimetric techniques (gravimetric thickness)
Chinese Name:	塑料薄膜和薄片 样品平均厚度、卷平均厚度及单位质量面积的测定 称量法（称量厚度）
Chinese Classification:	G31    Basic standards and general methods for synthetic resin and plastic
Professional Classification:	GB    National Standard
ICS Classification:	83.140.10 83.140.10    Films and sheets 83.140.10
Issued by:	AQSIQ; SAC
Issued on:	2006-3-10
Implemented on:	2006-10-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	2000 words
Price(USD):	80.00
Delivery:	via email in 1~3 business day

本标准规定了测量塑料薄膜或薄片样品称量厚度的试验方法(见第3章)，以及测量塑料薄膜或薄片卷平均称量厚度和单位质量面积的试验方法(见第4章)。
本标准适用于所有的塑料薄膜和薄片, 特别适用于用机械测量法测量厚度不够准确时，如测量压花薄膜的厚度。