NFPA-45 Fire Protection for Laboratories Using Chemicals is very clear that if you have an electrical outlet in a hood then you need another disconnect within 50 ft of the hood. 7.8.4.1 In installations where services and controls are within the hood, additional electrical disconnects shall be located within 15 m (50 ft) of theContinue reading “Can I Have an Electrical Outlet in a Hood?”
Tag Archives: Hood Safety
Venting Gas Cylinders in a Laboratory
NFPA 55 Compressed Gases and Cryogenic Fluids Code does not really tell you where hazardous gases should vent in a laboratory or a pilot plant. 7.3.1.5 Vent Pipe Termination. 7.3.1.5.1 Venting of gases shall be directed to an approved location. Approved in this sense means someone (usually the local authority having jurisdiction (AHJ) agreeing itContinue reading “Venting Gas Cylinders in a Laboratory”
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