Printech Archive
Re: Offset spray powder inhalation hazards?


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From: RobLindsay@usplayingcard.com
Date: Wed Nov 03 1999 - 14:54:43 CST


Compressed air commonly used to blow foreign material out of crevices must be
operated at a pressure of less than 30 p.s.i. and be designed so that if you
place your hand over the end of the nozzle (dead heading) the air will vent out
somewhere else, which will reduce/eliminate the chance for an air embolism in
the skin. Typically the nozzles have a hole at the tip and 2 or 3 holes around
the circumference of the nozzle near the tip.

I hope this helps some,

Rob

DAVE SALMAN <SALMAN.DAVE@epamail.epa.gov> on 11/03/99 02:56:39 PM

Please respond to printech@great-lakes.net

To: printech@great-lakes.net, Rob Lindsay/US/USPC@USPC
cc:

Subject: Re: Offset spray powder inhalation hazards?

Rob -

I followed your very thorough reply except for the part about being
sure not to have a "dead-headed" air line. Can you explain what
"dead headed" means.

Thanks

Dave Salman
US EPA
RTP NC 27711
tel 919 541 0859


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