Standard No.:	GB/T 531.1-2008
Chinese Name:	硫化橡胶或热塑性橡胶 压入硬度试验方法 第1部分：邵氏硬度计法（邵尔硬度）
English Name:	Rubber vulcanized or thermoplastic - Determination of indentation hardness - Part 1：Duromerer method （Shore hardness）
Professional Classification:	G40 Rubber products in general
Professional Classification:	GB National Standard
Issued by:
Issued on:	2008-06-04
Implemented on:	2008-12-01
Status:	VALID
Replace:	GB/T531-1999 Rubber-Determination of indentation hardness by means of pocket hardness meters
Language:	English
File Format:	PDF
Word Count:	5500 words
Price(USD):	165 (USD)
Delivery:	via email in 1-3 business day

1. Scope
This part specifies a method for determining the indentation hardness (Shore hardness) of vulcanized or thermoplastic rubber using durometers with the following scales:
? the A scale for rubbers in the normal hardness range;
? the D scale for rubbers in the high hardness range;
? the AO scale for rubbers in the low hardness range and cellular rubbers;
? the AM scale for thin rubber test pieces in the normal hardness range.

2. Normative references
The following normative documents contain provision which, through reference in this text, constitute provisions of this national standard. For dated reference, subsequent amendments to, or revisions of, any of these publications do not apply. But the parties to agreements based on this standard are encouraged to investigate the possibility of applying the latest editions of the standards indicated below. For undated references, the latest edition of the normative document referred to applies.
GB/T 2941 Rubber - General procedures for preparing and conditioning test pieces for physical test methods (GB/T 2941-2006, ISO 23529 : 2004, IDT)