Standard for the Safeguarding of Tanks and Containers for Entry, Cleaning, or Repair
What is NFPA 326?
This standard outlines procedures to safeguard tanks or containers operating at nominal atmospheric pressure that contain or have contained flammable and combustible liquids or other hazardous substances before entry, cleaning, repair, or other activities can be performed.
Official document scope
What does NFPA 326 address?
Described in the logical order in which work is typically conducted, provisions cover basic precautions; preparation for safeguarding such as lockout/tag out, removal of hazardous substances, and isolation; testing procedures, control or removal of vapors, inspection and certification of tanks and containers, procedures for access to and entry of tanks, and cleaning tanks and containers.