Vacuum Cleaning Method, NFPA 652 clause 8.4.2.2.1.7 and NFPA 654 clause 8.4.3.7, Portable vacuum cleaners that meet the following minimum requirements shall be permitted to be used to collect combustible particulate solids in unclassified (nonhazardous) areas:
(1) Materials of construction shall comply with 9.4.7.1 Conductive Equipment.
(2) Hoses shall be conductive or static dissipative.
(3) All conductive components, including wands and attachments, shall be bonded and grounded.
(4) The fan or blower shall be on the clean side of the primary filtration media or wet separation chamber,
(5) Electrical motors shall not be located on the dirty side of the primary filtration media or wet separation chamber unless listed for Class II, Divison 1, locations.
(6)* Where liquids or wet materials are picked up by the vacuum cleaner, paper filter elements shall not be used.
(7) Vacuum cleaners used for metal dusts shall meet the requirements of NFPA 484.
HOUSEKEEPING
Tiger-Vac ORDLOC NFPA 652 (also called “Static Free”) vacuum systems have been part of our “Good manufacturing practice standards” for decades.
Our ORDLOC vacuum systems fully comply with NFPA 652, 8.4.2.2.1.7 and NFPA 654, 8.4.3.7 points 1 to 7