Lets walk through a process in which we will isolate a PRCS using either the blinding/blanking or disconnect and misalignment provisions. The vessel we will enter is a PSM/RMP covered piece of equipment. Here’s how I was taught the process works…
Since this is a PSM/RMP covered process we will be impacted by three key OSHA standards:
1910.147 – The control of hazardous energy (lockout/tagout)
1910.146 – Permit-required confined spaces
1910.119 – Process safety management of highly hazardous chemicals (specifically (f)(4)… opening process equipment or piping)