GB/T 12000-1989
Replaced
GB/T 9640-2008
Active
National standards
GB/T 9640-2008 Flexible and rigid cellular polymeric materials—Accelerated ageing tests
GB/T 9640-2008 Flexible and rigid cellular polymeric materials—Accelerated ageing tests
Basic Information
Standard Code:
GB/T 9640-2008
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Basic standards and general methods for synthetic resins and plastics
ICS Name:
Plastic Composite
Publish Date:
2008-08-19
Implement Date:
2009-05-01
Pages:
5 pages
Scope
This standard specifies the test methods for simulating the natural aging effects of soft and hard foam polymers, such as oxidation or hydrolysis caused by moisture, in laboratories. The effects of aging are characterized by measuring the relevant physical and mechanical properties before and after aging. This standard applies to open-cell latex, open-cell polyurethane foams, closed-cell polyurethane foams, closed-cell polyolefin foams. The test conditions for other materials shall be supplemented as necessary.
Development Information
Replace the following standards
GB/T 9640-1988
Referenced Standards
Adopt standards
ISO 2440:1997
Related Standards
GB/T 15585-1995
Abolished
GB/T 15585-1995 Determination of shrinkage for injection moulding thermoplastics
GB/T 15596-1995
Replaced
GB/T 15596-1995 Plastics—Determination of changes in Color and variations in properties after exposure to daylight under glass, natural weathering or artificial light
GB/T 15598-1995
abolished_transferred
GB/T 15598-1995 Testing methods for shear strength of plastics by punch tool
GB/T 1843-1996
Replaced
GB/T 1843-1996 Plastics—Determination of izod impact strength
GB/T 2035-1996
Replaced