I would suggest you contact the American Society for the Testing of Materials
(ASTM).  Their test methods are most often used for measuring materials
properties.  They can be reached at:

ASTM
100 Barr Harbor Drive
West Conshohocken, PA  19428-2959
610-832-9585
http://www.astm.org
e-mail:  [log in to unmask]

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