// CODE SNIPPET
126.96.36.199 Cleaning Methods
JUMP TO FULL CODE CHAPTER
Surfaces shall be cleaned in a manner that minimizes the risk of generating a fire or explosion hazard. [654:188.8.131.52]
Vacuuming shall be the preferred method of cleaning. [654:184.108.40.206]
Where vacuuming is impractical, permitted cleaning methods shall include sweeping and water wash-down. [654:220.127.116.11]
Blow-downs using compressed air or steam shall be permitted to be used for cleaning inaccessible surfaces or surfaces where other methods of cleaning result in greater personal safety risk. Where blow-down using compressed air is used, the following precautions shall be followed:
- Vacuuming, sweeping, or water wash-down methods are first used to clean surfaces that can be safely accessed prior to using compressed air.
- Dust accumulations in the area after vacuuming, sweeping, or water wash-down do not exceed the threshold dust accumulation.
- Compressed air hoses are equipped with pressure relief nozzles limiting the discharge gauge pressure to 30 psi (207 kPa) in accordance with the OSHA requirements in 29 CFR 1910.242(b), "Hand and Portable Power Tools and Equipment, General."
- All electrical equipment potentially exposed to airborne dust in the area meets, as a minimum, the requirements of NFPA 70, National Electrical Code, NEMA12 as defined by NEMA250; or the equivalent.
- All ignition sources and hot surfaces capable of igniting a dust cloud or dust layer are shut down or removed from the area. [654:18.104.22.168]
Housekeeping procedures shall be documented in accordance with the requirements of Sections 4.2 and 4.3 of NFPA 654. [654:22.214.171.124]
Related Code Sections
126.96.36.199 Dust Explosion and Fire Prevention, Cleaning Methods
] Vacuuming shall be the preferred method of cleaning. [ 654: 188.8.131.52 ...
Fire Code 2015 of Delaware > 40 Dust Explosion and Fire Prevention > 40.3 Fugitive Dust Control and Housekeeping > 40.3.2 Housekeeping > 184.108.40.206 Cleaning Methods
220.127.116.11.7 Spraying, Dipping, and Coating Using Flammable or Combustible Materials,
Methods for cleaning paint circulation systems shall meet the requirements of 7.3.7 of NFPA 30. [ 33: 8.5.7] ...
Fire Code 2015 of Delaware > 43 Spraying, Dipping, and Coating Using Flammable or Combustible Materials > 43.1 Application > 43.1.6 Storage, Handling, and Distribution of Flammable and Combustible Liquids > 18.104.22.168 Distribution Systems — General > 22.214.171.124.7