SKC Limited SPLIT2 - Manual (Page 20)

20
How to calculate the SCALE factor:
The TWA result obtained from the filter used during a monitoring
exercise is compared against the TWA displayed by the SPLIT2
LCD in the REVIEW DATA option (see page 17).
From the two results a simple calculation is used to obtain the
SCALE factor for that sample. and atmosphere type.
= SCALE
Example:
Filter TWA was 5 mg/m3
SPLIT2 TWA was 2.5 mg/m3
5
2.5
= 2
Scale factor to be entered for the next
sample in the same atmosphere is 02.00
IMPORTANT NOTE: Applying a scale factor to the instrument should not be done using only a single result. It is strongly recommended
that 10 of the above procedures should be undertaken and averaged to obtain a typical correction factor.
Record your SCALE factor results here for future reference.
CALCULATING THE SCALE
* SCALE *
Scale: 02.00
DUST TYPE PROCESS TYPE FILTER TWA SPLIT2 TWA SCALE DATE SIGNED
Filter TWA result
SPLIT2 TWA result
Help requested with SCALE factors:
As you note down your correction factors using the table below
you are recording actual work place situations and exposures.
In order to build up information on these factors we would very
much appreciate feed back from you on your results.
If you would like to be part of this project, please send a copy of
the table below listing your scale factors to:
SKC Ltd.
Unit 11, Sunrise Park
Higher Shaftesbury Road
Blandford
Dorset DT11 8ST
We assure you that we will not release any information on your
company or employees. The information will be used to
investigate the possibility of issuing correction factors for
common dusts at a future time.
We look forward to your involvement.