Half Price Standard Code

Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use – Part 1: General Requirements
standard by The International Society of Automation, 05/11/2012

Design Selection Considerations for Safety System Hardware
standard by The International Society of Automation, 01/01/1997

Fossil Fuel Power Plant Feedwater Control System – Drum Type
standard by The International Society of Automation, 04/01/1999

Identification and Mechanical Integrity of Safety Controls, Alarms, and Interlocks in the Process Industry
standard by The International Society of Automation, 09/20/2012

Performance Requirements for Instruments Used to Detect Oxygen-Deficient/Oxygen-Enriched Atmospheres – Part I
standard by The International Society of Automation, 11/19/2007

Specifications & Tests of Potentiometric Pressure Transducers
standard by The International Society of Automation, 04/01/1982

Part I: Performance Requirements for Carbon Monoxide Detection Instruments (50-1000 ppm Full Scale)
standard by The International Society of Automation, 04/01/1998

Recommended Practice for the Installation, Operation, and Maintenance of Combustible Gas Detection Instruments
standard by The International Society of Automation, 02/26/2003

Nonincendive Electrical Equipment for Use in Class I and II, Division 2 and Class III, Divisions 1 and 2 Hazardous (Classified) Locations
standard by The International Society of Automation, 2015

Electrical Equipment in a Class I, Division 2/Zone 2 Hazardous Location
standard by The International Society of Automation, 01/01/1999