ASTM F 1438 : 1993 : R2012
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Standard Test Method for Determination of Surface Roughness by Scanning Tunneling Microscopy for Gas Distribution System Components
Hardcopy , PDF
03-12-2023
English
01-07-2012
CONTAINED IN VOL. 10.04, 2015 Defines a method for analysing the surface texture of gas distribution system components using a scanning tunneling microscope (STM). Assumes that the STM operator understands the use of the instrument, its governing principles, and any artifacts that can arise.
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