ASTM Section 14:2020
ASTM Book of Standards - Section 14: General Methods and Instrumentation (Vols 14.01-14.05)
standard by ASTM International, 07/01/2020
IEC 61511-SER Ed. 1.0 b:2016
Functional safety - Safety instrumented systems for the process industry sector - ALL PARTS
standard by International Electrotechnical Commission, 07/28/2016