Government of Canada / Gouvernement du Canada
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Maritime Occupational Health and Safety Regulations

Version of section 256 from 2010-06-03 to 2017-06-19:

  •  (1) Compressed air, gas or steam must not be used for blowing dust or other substances from structures, machinery or materials if

    • (a) there is a risk of any person being directly exposed to the jet or if a fire, explosion, injury or health hazard is likely to result from that use; or

    • (b) that use would result in a concentration of an airborne hazardous substance in excess of the values referred to in paragraph 255(1)(a) or the limits referred to in subsections 255(5) and (6).

  • (2) Compressed air must not be used for cleaning clothing contaminated with

    • (a) asbestos; or

    • (b) a hazardous substance having an exposure limit referred to in paragraph 255(1)(a) or (b) lower than 1 mg/m3.

  • (3) If compressed air is used to clean clothing,

    • (a) appropriate eye protection must be worn; and

    • (b) the maximum compressed air pressure in the line is to be 69 kPa or a safety nozzle limiting the air pressure to no more than 69 kPa must be used.

  • (4) Compressed air must be used in a manner that the air is not directed forcibly against any person.

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