ANSI/ISA 18.2-2009
This standard addresses alarm systems for facilities in the process industries to improvesafety, quality, and productivity. The general principles and processes in this standard areintended for use in the lifecycle management of an alarm system based on programmableelectronic controller and computer-based Human-Machine Interface (HMI) technology.Implementation of this standard should consider alarms from all systems presented to theoperator, which may include basic process control systems, annunciator panels, safetyinstrumented systems, fire and gas systems, and emergency response systems.
The practices in this standard are applicable to continuous, batch, and discrete processes.There may be differences in implementation to meet the specific needs based on processtype.