16
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
the Impactor has a limit of detection of
0.05 mg/m
3
. The Impactor can detect all mineral and synthetic oil mists, 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
3
, the screen will remain blank. For
tests above that read as follows:
The bottom line represents an oil concentration of 0.1 mg/m
3
. When the oil deposited forms a
continuous line then the concentration is in excess of 0.1 mg/m
3
. The middle line represents a
concentration of 0.5 mg/m
3
, again when the oil deposited forms a continuous line the concentration is
in excess of 0.5 mg/m
3
. The top line represents a concentration of 1.0 mg/m
3
, again when this forms a
continuous line the concentration is in excess of 1.0 mg/m
3
.
* – The above pass and fail criteria is based on breathing-air standard EN12021
Using the Draeger tube tip cutter
Pass* -
greater
than
0.05mg/m
3
but less
than
0.1mg/m
3
Pass* -
greater
than
0.1mg/m
3
but less
than
0.5mg/m
3
Fail* -
greater than
0.5mg/m
3
but less than
1.0mg/m
3
Fail* -
greater
than
1.0mg/m
3
