Western Australian Consolidated Regulations Western Australian Consolidated Regulations If a person is
required, under regulation 3.40 or 3.41, to ensure that a supplied air
respirator is provided for use at a workplace then the person must also
ensure —
(a) that
air supplied to the supplied air respirator is supplied at a minimum rate of
170 litres per minute per person measured at the respirator; and
(b) that
air supplied to the supplied air respirator has passed through an efficient
purifying device so that the air —
(i)
does not have an objectionable or nauseous odour; and
(ii)
contains not less than 19.5% and not more than 22% by
volume of oxygen; and
(iii)
at 15° Celsius and 100 kPa absolute —
(I) contains not more than 11 mg/m 3
(10 ppm by volume) of carbon monoxide; and
(II) contains not more
than 1400 mg/m 3 (800 ppm by volume) of carbon dioxide; and
(III) contains not
more than 1 mg/m 3 (1 ppm) of oil; and
(IV) if in a cylinder,
contains not more than 100 mg/m 3 of water when sampled from the cylinder when
it is initially filled to a pressure of at least 12 MPa; and
(V) if used for diving, contains not more
than 900 mg/m 3 (480 ppm by volume) of carbon dioxide;
and
(c)
where the air is to be supplied from a compressor to a face‑piece, hood
or helmet, that the air has passed through —
(i)
a conditioner to ensure that the temperature of the air
is not less than 15° Celsius and not more than 25° Celsius; and
(ii)
an efficient condensate trap fitted with a drain cock for
the removal of any condensed liquid; and
(iii)
an efficient ring circuit or controlled leak‑off
for the elimination of stale air.
Penalty: the regulation 1.16 penalty.
[Regulation 3.44 amended in Gazette
14 Dec 2004 p. 6018; 3 Jul 2007 p. 3293.]
[Heading inserted in Gazette 22 Jul 1997
p. 3840.]