Posts Tagged sampling pumps

How should I sample to comply with OSHA’s silica dust standard?

“So, silica…”dusty

This was how many conversations started while exhibiting at conference  last week. OSHA released its rule for occupational exposure to respirable crystalline silica back in March and many are still looking to understand how it will affect their business and employees.

The new rule goes into effect on June 23, 2016 and most business will have between one to five years to comply depending on industry. The new standard reduces the permissible exposure limit (PEL) for respirable crystalline silica to 50 micrograms per cubic meter of air, averaged over an 8-hour shift. This is a reduction is two to five times lower than the previous PEL.

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Make sure to remove the rubber stoppers before using the TSI 4146 primary flow calibrator

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I ran into a small problem recently with a customer who had purchased some of TSI’s 4146 primary flow calibrators for their industrial hygienists in the field. The flow readings they were getting were about 60% of where they should have been.

Were the sensors working? Yes, they were fine.

Was it connected correctly without any leaks?

Well, yes and no.

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