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Compared to other lab - based methods, what is a major limitation of the length of stain detector tubes like those that we used in
Compared to other labbased methods, what is a major limitation of the length of stain detector tubes like those that we used in the lab?
a They are very expensive to use
b They are technically difficult to use
c They are relatively inaccurate
d They must be shipped to a lab for analysis
A collection technique that makes use of a solid sorbant tube containing material such as charcoal is referred as:
a adsorption
b absorption
c vapor trapping
d infrared testing
How many milligrams are in
You took an air sample at for min using a solid sorbent tube and tested for the presence of toluene. The lab reports the following amounts of toluene in your sample.
Primary chamber
Backup chamber
a If the MW of toluene is what is the concentration in ppm
b Is the amount of toluene collected in the backup chamber acceptable? If not, why not and what are you going to do about it
If the TLV is are your results above the TLV How confident are you of this answer?
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