Factair F4504 Operating Manual page 33

Carbon Monoxide (CO) (67 28511)
REQUIREMENT -
The media will discolour to show the presence of carbon monoxide in the air sample. The total length
of the discoloration is the measure of concentration read directly from the scale in parts per million.
The standard CO tube (67 28511) has a range of 0 to 150 PPM, and the maximum limit for medical air
in Pharmacopeia is 5 PPM.
An alternative tube (67 33051) shown below, which has a 0 to 60PPM range, can also be used with
the F4504 tester.
Nitrous Fumes (NO
x
REQUIREMENT -
The media in the detector tube will discolour to show the presence of nitrous fumes. The total length
of the discoloration is the measure of concentration read directly from the scale in parts per million.
MAXIMUM READING OF 5 PPM.
) (8103661)
MAXIMUM CONCENTRATION OF 2 PPM.
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