ASTM D2842: Standard Test Method for Water Absorption of Rigid Cellular Plastics
SDO: ASTM: ASTM International
DOD Adopted ANSI Approved Approved
This test method covers the determination of the water absorption of rigid cellular plastics by measuring the change in buoyant force resulting from immersion under a 5.1-cm (2-in.) head of water for the specified immersion period of 96 h.
This test method describes two procedures that shall be used to measure the change in buoyant force. ProcedureAshall be used for materials that either experience rapid water absorption or that show an increase in volume during the exposure period, or both. Materials that do not exhibit either of these characteristics shall be evaluated by Procedure B.
For specific applications, immersion periods varying from the normal 96-h test requirement shall be agreed upon between the manufacturer and the purchaser.
The values stated in SI units are to be regarded as the standard.
This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
NOTE 1—This test method is equivalent to ISO 2896.
*A Summary of Changes section appears at the end of this standard
- rigid cellular plastics
- water absorption
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