BS ISO 11561:1999 Ageing of thermal insulation materials - Determination of the long-term change in thermal resistance of closed-cell plastics (accelerated laboratory test methods)
Publication Year
1999
Document Status
Current
Abstract
Specifies two laboratory test methods, based on slicing and scaling techniques, to determine the long-term changes in the thermal resistance of closed-cell (normally 90 %) cellular plastic materials that contain gases which, through diffusion processes, affect the properties of a foam with time.
ISBN
0580353257
Publisher Information
British Standards Institution
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