Appendix 3 - Reading The Draeger Oil Impactor And Chemical Reagent Tubes - Factair F4504 Operating Manual

Appendix 3
Reading the Draeger Oil Impactor and Chemical Reagent Tubes
Oil Impactor
The Oil Impactor's protective seal must be kept in place for the duration of the test and only
removed after the test has been completed.
With a standard measurement range of 0.1 to 1.0 mg/m
3
0.05 mg/m . The Impactor can detect all mineral and synthetic oils, it features a series of 3 horizontal
lines, each formed by a series of precision manufactured nozzles. These horizontal lines of nozzles
are calibrated to a different concentration of oil. When air is passed through these nozzles any oil
present in the air is deposited on the glass plate prior to the air being exhausted by vents around its
circumference, this allows the user to easily and quickly identify minute quantities of oil.
For tests that pass with an oil concentration of less than 0.05mg/m
tests above that read as follows:
The bottom line represents an oil concentration of 0.1 mg/m
continuous line then the concentration is in excess of 0.1 mg/m
concentration of 0.5 mg/m
is in excess of 0.5 mg/m
forms a continuous line the concentration is in excess of 1.0 mg/m
3
, again when the oil deposited forms a continuous line the concentration
3
. The top line represents a concentration of 1.0 mg/m
Pass -
greater
than
0.05mg/m
but less
than
0.1mg/m
Fail - greater
than
0.5mg/m
but less than
1.0mg/m
3
the Impactor has a limit of detection of
3
3
3
3
3
29
3
, the screen will remain blank. For
. When the oil deposited forms a
3
. The middle line represents a
3
, again when this
3
.
Fail / (Pass
for
EN12021
breathing-
air only) -
greater
than
3
0.1mg/m
but less
than
3
0.5mg/m
Fail -
greater
than
3
1.0mg/m