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['Hazardous Materials Safety - OSHA']
['Process Safety Management']
10/12/2025
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If a process comprises 10,000 pounds of 50 percent diacetyl peroxide solution, is the process covered by the Process Safety Management or PSM standard?
No. Diacetyl peroxide is specifically listed in Appendix A at concentrations greater than 70 percent. Therefore, solutions containing diacetyl peroxide at less than 70 percent are not covered by PSM regardless of the aggregate amount of the highly hazardous chemical.
['Hazardous Materials Safety - OSHA']
['Process Safety Management']
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