GB/T 1685-2008
Rubber,vulcanized or thermoplastic.Determination of stress relaxation in compression at ambient and at elevated temperatures (English Version)

Standard No.

GB/T 1685-2008

Language

Chinese, Available in English version

Release Date

2008

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 1685-2008

Replace

GB/T 13643-1992

Scope

This standard specifies two methods for the determination of the force reduction of vulcanized rubber or thermoplastic rubber when it is compressed to and maintained at a constant strain at a specified test temperature. The sample is divided into two types: cylindrical and annular. Different sample sizes and shapes give different test results, and only samples with the same shape and size can be compared. Ring test specimens are particularly suitable for determining stress relaxation in liquid environments. This standard does not specify tests below standard laboratory temperatures. This method can be used for low temperature tests, but the reliability of the test results has not been confirmed.

GB/T 1685-2008 Referenced Document

• GB/T 14838 Rubber and rubber products.Determination of precision for test method standards*， 2009-06-15 Update
• GB/T 1690 Rubber,vulcanized or thermoplastic.Determination of the effect of liquids*， 2011-01-14 Update
• GB/T 2941 Rubber. General procedures for preparing and conditioning test pieces for physical test methods
• GB/T 3512 Rubber, vulcanized or thermoplastic.Accelerated ageing and heat resistance tests.Air-oven method*， 2014-12-22 Update
• GB/T 528 Rubber,vulcanized or thermoplastic.Determination of tensile stress-strain properties*， 2009-04-24 Update
• ISO 4287 Geometrical Product Specifications (GPS) - Surface texture: Profile method - Terms, definitions and surface texture parameters; Technical Corrigendum 2

GB/T 1685-2008 history

• 2008 GB/T 1685-2008 Rubber,vulcanized or thermoplastic.Determination of stress relaxation in compression at ambient and at elevated temperatures
• 1982 GB/T 1685-1982 Rubber vulcanized--Determination of stress relaxation in compression at normal and elevated temperature

GB/T 1685-2008 Rubber,vulcanized or thermoplastic.Determination of stress relaxation in compression at ambient and at elevated temperatures has been changed from GB/T 13643-1992 Rubber,vuicanized or thermoplastic--Determination of compression stress relaxation(rings).