Void this question.
You want to measure the level of mercaptoethanol in the air for OSHA regulatory compliance. Start here http://www.skcinc.com/guides.asp . What method of monitoring will you use?
a. ) Any charcoal tube.
b.) Sorbent Tube 226-10
c.) Sorbent Tube 226-30-16
d.) b. or c., depending on details of the situation.
SKC sells a "passive diffusion" sampler for p-dichloro benzene? (The "p" stands for "para", the numbers 1,4- also mean "para." So think how the substance might be indexed by name. If you can't find the chemical, its CAS number is 106-46-7)
True / false.
Look at the page of the TLV book and the line on Dibutyl phosphate, CAS No. 107-66-4. It looks like the STEL is half the 8-hr TWA. Regarding workplace exposures, which of these is allowable:
1.5 ppm for 8 hours
2.5 ppm for one hour
1.8 ppm for 8 hours
None of the above
https://www.skcinc.com/catalog/index.php?cPath=200000000_203000000_203100000_203100050 has diffusion tubes. Would this kind of tube be useful to check if a worker is being exposed over the STEL.
Yes,
No,
Most tubes will work with styrene-tetraethyl lead,
Tube are not legal for styrene-tetraethyl lead.
Go the NIOSH Pocket Guide and look up Hydrogen Sulfide. Look up IDLH. Here is an gas detection instrument that is worn on a person. The instrument only measures one gas at a time, but logs data over time and gives an alarm if the measured gas is over a set amount - usually the workplace standard. http://www.indsci.com/products/single-gas-detectors/gasbadgepro/ Then consider, you have a plant that often has low levels of hydrogen sulfide in the work environment. If one of the operations go amok the level could reach 500 ppm quickly. How would you monitor for this?
Don't worry about it, H2S is easy to smell.
Either a Draeger tube or SKC passive tubes will work well
A Industrial Scientific GasBadge™ on each worker would work
Charcoal tubes are best.
From Submodule 4B, page 1.
What was the actual exposure route into Wetterhahn? Fill in the blank.
What was she doing to protect herself? Fill in the blank.
This MSDS sheet is found on whose website? Fill in the blank.
This MSDS sheet was written by the manufacturer - what is their name and how are they doing? Fill in the blank.
What warning does the MSDS sheet give that would have helped Wetterhahn? Fill
in the blank.