Controls Standards

Can anyone out there help me recall the organization that has a standardized controls approach to a process. ??S90 or G?? Requlations??? It's like the ISO9000 in the controls world. And it pertains to how P&ID's are labelled, broken down, and then translated into a PLC program, to summarize it VERY loosely.

Thanks.

NFPA 79 industrial Controls in the US
ISA 5.1 - 5.5 for P&ID symbols, diagramming and loops.

The ISA part 5 (?) covers various aspects:

5.1 Instrumentation Symbols & Identification
5.2 Binary Logic Diagrams for Process Operations
5.3 Graphic Symbols for DCS
5.4 Instrument Loop Diagrams
5.5 Graphic Symbols for Process Displays

like Gerry says.

Thanks gentlemen. I've since found is was S88 was the jargin I was trying to recall.

Last time I looked there were five S88 batch documents from ISA:

Batch Control Part 1: Models and Terminology
ISA-88.01-1995 (R2006)

Batch Control Part 2: Data Structures and Guidelines for Languages; ANSI/ISA–88.00.02–2001

Batch Control Part 3: General and Site Recipe Models and Representation