As the debate rages on whether an intervening valve can be placed between a relief valve and the vessel it is protecting, I offer up NFPA 59A as another source for the answer YES. In fact, NFPA 59A (2016) requires either a stop valve or RV tree so that the RV’s can be changed without…...
When establishing our Hazardous Locations (HAZLOC) we utilize a Recognized And Generally Accepted Good Engineering Practice (RAGAGEP) such as NFPA 497, Recommended Practice for the Classification of Flammable Liquids, Gases, or Vapors and of Hazardous (Classified) Locations for Electrical Installations in Chemical Process Areas or there is also API RP500, Recommended Practice for Classification of Locations…...
Potential PSM scope items: Clarifying the exemption for atmospheric storage tanks Removing the exemption for Oil- and Gas-Well Drilling and Servicing Resuming Enforcement for Oil and Gas Production Facilities Covering reactive chemical hazards Updating and expanding the list of HHCs in Appendix A of the existing PSM standard Covering dismantling and disposal of explosives and…...
The research reported here assessed the costs and benefits of the proposed California process safety management (PSM) and California Accidental Release Prevention regulations that are designed to improve safety at oil and gas refineries in California. The authors estimate these costs and benefits in four categories: costs to industry (to implement the regulation), costs to…...
The SPAR-H method applied in this study could analyze and quantify the potential human errors and extract the required measures for reducing the error probabilities in PTW system. Some suggestions to reduce the likelihood of errors, especially in the field of modifying the performance shaping factors and dependencies among tasks are provided. The PTW process…...
At a brewery, the base plate-to-shell weld seam of a 90-m3 vertical cylindrical steel tank failed catastrophically. The 4-ton tank “took off” like a rocket leaving its contents behind, and landed on a van, crushing it. The top of the tank reached a height of 98′. The internal overpressure responsible for the failure was an…...
3/31/2016 UPDATE – The Ohio State Fire Marshal’s Office says the cause of an explosion and fire is undetermined. Their investigation is complete and they have turned matters over to the insurance company(s). 3/14/2016 UPDATE – Best video yet (however it is one of the workers we saw in a previous video standing too close)…...
Questions include… Why is EPA proposing amendments to the RMP rule? How is EPA’s proposal related to efforts to implement EO 13650? What are the impacts from accidents at RMP facilities? What requirements are included in the proposal? Has EPA discussed these proposed changes with stakeholders or other federal agencies? How will EPA engage stakeholders…...
Friday, April 29, 2016; 8:30 a.m. to 3 p.m. Location: 12806 Gateway Dr. S, Tukwila, WA 98168 If you plan on attending in person please RSVP to [email protected]. Seating is limited. Teleconference number available for this event: 1-866-715-6499 Passcode: 1897720443 Workshop Facilitator: Jerry L. Jones, PE, CSP, CHMM, CFEI, Chemical Engineering Consultant Sponsored by: Washington State Department of…...
In my last several Process Safety courses, I had several requests for “code requirements” surrounding Relief Valve “maintenance” (e.g., inspection, replacement, and rebuild frequencies). In general, there is the “at least every five years” interval that is ever so popular, and the vast majority of manufacturers will REQUIRE their RV(s) the be changed/rebuilt/certified “at least”…...
In October 2015 I wrote about justifying our Maximum Intended Inventories (MII) so that we balance business needs with risks associated with large quantities of highly hazardous chemicals on site. Now we have come full circle and now a facility is being asked to define their MII as it relates to their material and energy…...
The major provisions of this proposed rule include several changes to the accident prevention program requirements, emergency response requirements, and public availability of chemical hazard information. Accident Prevention Program Revisions This action proposes three changes to the accident prevention program requirements…. Membership Required You must be a member to access this content.View Membership LevelsAlready a...
