Download or read book GB T 15252 2014 Translated English of Chinese Standard GBT 15252 2014 GB T15252 2014 GBT15252 2014 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2016-06-03 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Standard specifies a method for the determination of the indentation hardness of plastics and ebonite by means of durometers of two types: type A is used for softer materials and type D for harder materials (see the Note to 8.2). The method permits measurement either of the initial indentation or of the indentation after a specified period of time, or both.