The most widely used of all ISA standards, ISA-5.1, Instrumentation Symbols and Identification, has been published in a 2022 version that provides clarifications and corrections to the previous 2009 ...
Originally published in 1984. As told by Tom McAvinew. The use of ISA-5.1, Instrumentation Symbols and Identification, originally published in 1984, is in general quite widespread. That is because it ...