Wikipedia:Reference desk/Archives/Miscellaneous/2014 February 28

= February 28 =

Implication of astrological chart
This duplicate question has been merged with the identical question at the humanities desk--please follow guidelines on not making duplicate posts. μηδείς (talk) 17:25, 28 February 2014 (UTC)

OSHA regulations on HCl
Does anyone know where I can find out what concentration of hydrochloric acid is considered a hazardous chemical by OSHA? I tried searching their website. OSHA is the US Occupational Safety & Health Administration. — Preceding unsigned comment added by JackJoeJim (talk • contribs) 20:29, 28 February 2014 (UTC)


 * Here are some OSHA links I've found: This says only anhydrous is considered a HHC (Highly Hazardous Chemical), and this  says that aqueous solutions are not subject to PSM (process safety management) regulations. Here is another response from OSHA about a similar question . To be honest, I'd contact them directly. They seem to respond relatively quickly, and, as far as I can tell, there are different considerations depending on what you are doing with it! SemanticMantis (talk) 20:55, 28 February 2014 (UTC)


 * Thank you. Maybe I'll be stuck writing to OSHA, even if it takes them months to answer.  — Preceding unsigned comment added by JackJoeJim (talk • contribs) 16:30, 1 March 2014 (UTC)