GB/T 9640-2008 (English Version) PDF

Standard No.: GB/T 9640-2008
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 9640-2008
Replace: GB/T 9640-1988

Scope: This standard specifies test methods for simulating in the laboratory the natural aging effects of flexible and rigid foamed polymeric materials such as oxidation or hydrolysis due to moisture. The relevant aging effects are characterized by measuring the relevant physical and mechanical properties before and after aging. This standard is applicable to open-cell latex, open-cell polyurethane foam, and closed-cell polyurethane foam. The test conditions for other materials will be supplemented when necessary.

GB/T 9640-2008 Referenced Document

GB/T 2941-2006 Rubber. General procedures for preparing and conditioning test pieces for physical test methods

2008 GB/T 9640-2008 Flexible and rigid cellular polymeric meterials.Accelerated ageing tests
1988 GB/T 9640-1988 Polymeric materials, Cellular flexible--Accelerated ageing tests