Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!usc!samsung!aplcen!stda.jhuapl.edu!mjj
From: mjj@stda.jhuapl.edu (Marshall Jose)
Newsgroups: sci.electronics
Subject: Re:  Zap, Fry, and Sizzle (really:  xmfr pcv's?)
Message-ID: <4831@aplcen.apl.jhu.edu>
Date: 5 Mar 90 19:00:07 GMT
Sender: news@aplcen.apl.jhu.edu
Reply-To: @aplvax.jhuapl.edu:mjj@stda.jhuapl.edu (Marshall Jose)
Distribution: usa
Organization: The Johns Hopkins University Applied Physics Laboratory
Lines: 25

In order to further dilute the content of this newsgroup :-), as well as
help straighten out some misnomers which have been seen here, I have
assembled the following list:

 PCB:	Poly-chlorinated biphenyl	Additive to transformer coolant
					oil, reduces vapor pressure;
					carcinogenic if ingested.
	-or-
	Printed circuit board

 PCP:	Phencyclidine powder		Veterinary anaesthetic and abused
					substance

 PCV:	Positive crankcase		Hydrocarbon-emission reduction
	ventilation			technique; routes ring-blow-by
					gases to carburetor

 PVC:	Poly vinyl chloride		Plastic popular for its light
					weight and stability

 PPB:	Parts per billion		Unit of concentration

Hope this helps, and have a nice day.  Comments and corrections to:
Marshall Jose  WA3VPZ
mjj@aplvax.jhuapl.edu  ||  ...mimsy!aplcen!aplvax!mjj