ADOPTED_FROM:ISO 1481:1983
Specifies the characteristics of screws with thread sizes from ST 2,2 up to and including ST 9,5; includes specifications with reference to International Standards; gives an example for the designation.
IEEE/CSA Standard for Skin Effect Trace Heating of Pipelines, Vessels, Equipment, and Structures - General, Testing, Marking, and Documentation Requirements
IEEE/CSA Standard for Impedance Heating of Pipelines and Equipment - Application Guide for Design, Installation, Testing, Commissioning, and Maintenance