GB/T 39693.3-2021
Rubber, vulcanized or thermoplastic—Determination of hardness—Part 3:Dead-load hardness using the very low rubber hardness (VLRH) scale (English Version)

Standard No.

GB/T 39693.3-2021

Language

Chinese, Available in English version

Release Date

2021

Published By

国家市场监督管理总局、中国国家标准化管理委员会

Latest

GB/T 39693.3-2021

Scope

This part of GB/T 39693 specifies a method for determining the hardness of ultra-soft vulcanized rubber or thermoplastic rubber using a very low rubber hardness (VLRH) scale. The indentation depth of the spherical indenter has a linear relationship with the VLRH scale.

GB/T 39693.3-2021 Referenced Document

• ISO 18899 Rubber - Guide to the calibration of test equipment
• ISO 23529 Rubber - General procedures for preparing and conditioning test pieces for physical test methods
• ISO 48-9:2018 Rubber, vulcanized or thermoplastic - Determination of hardness - Part 9: Calibration and verification of hardness testers

GB/T 39693.3-2021 history

• 2021 GB/T 39693.3-2021 Rubber, vulcanized or thermoplastic—Determination of hardness—Part 3:Dead-load hardness using the very low rubber hardness (VLRH) scale

GB/T 39693.3-2021 -All Parts