by Tom Resser | Aug 25, 2026 | Standards and Service
UL Listed vs FM Approved: What the Inspector Is Really Asking UL listed and FM Approved are separate certifications from separate organizations, and neither implies the other. UL (Underwriters Laboratories) tests products against published UL standards and lists the...
by Tom Resser | Aug 25, 2026 | Selection and Supply
Ansul or Equivalent: What a Substitute Dry Chemical System Has to Demonstrate A specification that reads "Ansul or equivalent" is not asking for an Ansul unit. It is asking for a unit that meets the performance the specifier had in mind when the brand name was written...
by Tom Resser | Aug 25, 2026 | Selection and Supply
Who Decides on Fire Protection in Petrochemical Project: Engineers, Contractors, Procurement, HSE and the AHJ Fire protection on a petrochemical project is decided by seven parties, and no single one of them can make the decision alone. The owner sets the risk...
by Tom Resser | Aug 25, 2026 | Standards and Service
Fire Protection Services Explained: Inspection, Maintenance, Recharge and Replacement Fire protection services for an industrial site cover four distinct jobs: inspection, a scheduled look to confirm the system is in place and undamaged; maintenance, a hands-on check...
by Tom Resser | Aug 25, 2026 | Foam and Water
Foam Proportioners, Monitors and Nozzles: The Hardware Behind a Foam System Component chain of a foam system from water supply through proportioner, concentrate tank and piping to the monitor and nozzle A foam system is a water system with two additions: a...
