Equipment covered by mechanical integrity

OSH A 1910.119 specifies that a mechanical integrity program must cover the following LHjuipment  

The language of this element of the standard seems too stiff and vague—perhaps more useful to a courtroom lawyer than a practicing engineer working within a chemical plant. 

The Nonmandatory Appendix C provides compliance guidelines of the OSHA PSM standard [1] that are much easier to understand than the standard itself (see page 6414 in the Federal Register). Here is an extended quotation  

Many of the detailed engineering aspects of mechanical integrity are covered by codes and standards generated by a wide variety of associations. Useful references not inen-tioned in the OSH A excerpt above include those published by organizations such as the American Institute of Chemical Engineers, the Chemical Manufacturers Association, the Chlorine Institute, the Compressed Gas Association, and publications from various property insurance associations. 

The OSHA Law, a performance-oriented standard, allows employers to detennine testing criteria and to set criteria to judge tlie acceptance or failure of test results. If a test detects a potentially hazardous condition, prompt corrective action is required. 

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