Standard No.:	GB 1033-1986
English Name:	Test method for density and relative density of plastics
Chinese Name:	塑料密度和相对密度试验方法
Chinese Classification:	G31    Basic standards and general methods for synthetic resin and plastic
Professional Classification:	GB    National Standard
Issued by:	China State Bureau of Standards
Issued on:	1986-12-30
Implemented on:	1987-10-1
Status:	superseded
Superseded by:	GB/T 1033.1-2008 Plastics - Methods for determining the density of non-cellular plastics - Part 1: Immersion method liquid pyknometer method and titration method
Superseded on:	2009-4-1
Abolished on:	2009-04-01
Superseding:	GB 1033-1970
Language:	English
File Format:	PDF
Word Count:	5000 words
Price(USD):	150.0
Delivery:	via email in 1~3 business day

本标准适用于泡沫塑料以外的塑料密度及相对密度的测定。本标准包括五种试验方法。A）浸渍法，适用于各种形态的塑料制品，如：板、棒、管等；B）比重瓶法，适用于粉、粒、膜等试样；C）浮沉法，适用于A法试样及粒状试样；D）密度梯度柱法，适用于A、C法试样；E）密度计法，适用于A、C法试样。塑料的密度及相对密度，常用于了解塑料物理结构状态及有关的体积计算等。其测定值通常取决于试样的制备方法，特别是对部分结晶的聚合物，试样的制备要严格执行产品标准中的规定。