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Question:Methods for or experience measuring workplace hydrogen sulfide gas?

gretchengehrke asked on August 23, 2017 22:32
110 | 1 answers | shortlink


I'm interested in comparing a variety of methods that are used for measuring hydrogen sulfide gas, ranging from NIOSH Method 6013 (which involves collecting an air sample into a sorbent tube, desorbing the sample, and analyzing using ion chromatography) to commercial sensors and tubes, to low-cost DIY methods. The type of monitoring I am most interested in learning more about right now is workplace monitoring for hydrogen sulfide. Does anyone here have experience with on-site hydrogen sulfide monitoring? If so, what equipment did you use? How often did you monitor? Did you ever collect grab samples to be analyzed by an OSHA or NIOSH method? Thanks!



hydrogen-sulfide-sensing hydrogen-sulfide air-quality h2s

question:air-quality question:question question:h2s



1 Comments

gretchengehrke 4 months ago

There are a bunch of sensors commercially available through this vendor: https://www.grainger.com/category/ecatalog/N-1z0dwuc. Has anyone used one of these?

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1 Answers

RKI (Riken Keiki) makes an popular 4-gas monitor, the GX-2012, which includes CO, O2 as well as CH4. The cal station doubles the cost of the equipment, but it has a robust data logger, bar hole mode (for surface soil testing) and is super easy to use. It measures H2S in %LEL. The problem with portable gas monitors is that you need the cal station, which add to the cost.

There is also an interesting, low-cost project by another member here on Public Lab using photo paper. It is something I have been wanting to try for a while. [https://publiclab.org/notes/show/10576]

Pinpointing the source of H2S is also important, so having more than one monitor for batch sampling on transects is also useful. Best wishes!


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