They are usually preceded by various methods of analyzing tasks or jobs to be performed in a workplace, including an approach called job safety analysis, in which hazards are identified and their control methods described.
Procedures must be suited to the literacy levels of the user, and as part of this, the readability of procedures is important.
When writing an SOP, make sure the appropriate research was performed to understand the hazards and identify safety measures including a review of past incidents. They may point out hazards you hadn’t considered or known about.
For example, compressed gas vendors can explain appropriate handling.
A standard operating procedure, or SOP, is a set of step-by-step instructions compiled by an organization to help workers carry out complex routine operations. In clinical research, the International Council for Harmonisation (ICH) defines SOPs as "detailed, written instructions to achieve uniformity of the performance of a specific function".
The lab worker uses the hazard matrix to review the risks associated with the use of hazardous materials, hazardous processes, and hazardous equipment.