ASTM F 1438 – 93 pdf free download

Standard Test Method for Determination of Surface Roughness by Scanning Tunneling Microscopy for Gas Distribution System Components1

This standard is issued under the fixed designation F 1438; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.

ASTM F 1438 – 93 pdf free download

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ASTM F 1437 – 01 pdf free download

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