Standard Test Method for Qualifying Coatings for Use on F3125 Grade A490 Structural Bolts Relative to Environmental Hydrogen Embrittlement Ingestion-build-58863 The description of the controls

The description of the controls is given only in order to define the buttons and indicators

to significant changes in the wording of definitions or notes to entry

This International Standard covers uni-directional and bi-directional PTUs

BS EN ISO 643 is the international Standard that specifies a micrographic method of determining apparent ferritic or austenitic grain size in steels

NOTE 1 In the case of citronellal the free hydroxylamine method described in ISO 1271 should be used

Standard Test Method for Qualifying Coatings for Use on F3125 Grade A490 Structural Bolts Relative to Environmental Hydrogen Embrittlement Ingestion-build-58863 The description of the controls