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International Breathing-Air Standards
Europe
US
Australia and New
Zealand
BS
EN12021
&
EN12021:2014
CGA
G-7.1-2011
Grade D
AS-NZS 1715: 2009*
Odour
The gas shall be free
from
unsatisfactory
odour or taste.
None (No pronounced
odour)
No objectionable or
nauseous odour
Oxygen
(21 ± 1)%
19.5% - 23.5%
19.5% - 22%
Carbon
Dioxide
≤ 500 PPM
≤ 1000 PPM
≤ 800 PPM
Carbon
Monoxide
≤ 5 PPM
≤ 10 PPM
≤ 10 PPM
Oil
≤ 0.5 mg/m
3
≤ 5 mg/m
3
≤ 1 mg/m
3
Water
Airline
<40Bar
Where the apparatus
is used and stored at a
known temperature
the
pressure
dewpoint shall be at
least 5°C below likely
lowest temperature.
Where the conditions
of usage and storage
of any compressed air
supply is not known
the
pressure
dewpoint shall not
exceed -11°C.
Dewpoint ≤50°F (67
PPM v/v), for SCBA
use in extreme cold a
dew point not to
exceed -65°F (24 ppm
v/v) or the dewpoint
must be 10°F lower
than
the
coldest
temperature where
the respirator is worn.
Water
High
Pressure
40 to 200 bar ≤50
mg/m
3
>200 bar ≤35 mg/m
3
HP Charging Comp
≤25 mg/m
3
Contain not more
than 100 mg/m
3
for
cylinders initially filled
to pressure of at least
120 bar.
Note – Also ensure that the test point volume and pressure is sufficient for the RPD being used. For
AS-NZS 1715 the minimum requirement is 170 l/min continuous flow for each person, measured at
the respirator.
Above is an extract only for full details refer to the individual standards.
