Can any share their definition of a particularly hazard substances (PHS) as you define it in your chemical hygiene plan (CHP)?
I’m not looking for the OSHA lab standards definition, i.e. “selected carcinogens, reproductive toxins and substances which have a high degree of acute toxicity”, but your definition. For example, any chemical that is categorized under the GHS (2012 OHSA) as acute toxicity - category 1, carcinogenicity - categories 1A and 1B, reproductive toxicity - 1, etc.
When comparing lists of PHS from various universities I find different lists of chemicals. It would be useful to understand how others precisely define a PHS.
If you don’t define it, how do you evaluate if a substance is a PHS for the purposes of your CHP?
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