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This standard applies to processes in which materials are passed through tanks, vats, or containers of flammable or combustible liquids, including dipping, roll, flow, and certain coating, finishing, treating, cleaning and similar processes. The standard does not apply to storage of organics in locations other than the manufacturing environment. Among other things, the standard requires that: Organic coatings operations shall not be conducted in the same building with other occupancies; Areas where unstable liquids are handled or processed shall be cut off from the remainder of the plant by a wall having a fire resistance rating of at least two hours, and openings equipped with approved fire doors.
The following editions have been incorporated by reference (IBR) into the Code of Federal Regulations (CFR):
IBR approved for | Overview of requirements | IBR approved edition |
---|---|---|
29 CFR 1910.124(b)(4)(ii) | Employers must ensure that when mechanical ventilation is used, it conforms to the following standard: NFPA 34-1995, Standard for Dip Tanks Containing Flammable or Combustible Liquids. | NFPA 34-1995 Standard for Dip Tanks Containing Flammable or Combustible Liquids. |
29 CFR 1910.124(b)(4)(iv) | Employers must ensure that when mechanical ventilation is used, it conforms to the following standard: ANSI Z9.1-1971, Practices for Ventilation and Operation of Open-Surface Tanks, and NFPA 34-1966, Standard for Dip Tanks Containing Flammable or Combustible Liquids. | NFPA 34-1966 Standard for Dip Tanks Containing Flammable or Combustible Liquids. |
Standards are available for purchase from the American National Standards Institute (ANSI), see webstore.ansi.org, and from the National Fire Protection Association (NFPA), see catalog.nfpa.org.