From: email@example.com (Tom Perigrin)
Subject: Re: Chemical grades
Date: Mon, 4 Mar 1996 14:29:50 GMT
In article <firstname.lastname@example.org>, email@example.com
> Could someone please explain the different grades of chemicals. ie,
> reagent grade, laboratory grade, technical grade etc.
spectral quality - man, you don't wanna ask...
analytical reagent - very high grade, probably with an analysis on each
reagent - very high grade, possibly an analysis, possibly a typical
laboratory grade - good grade. Slightly higher level of impurity, although
controlled as to type of impurity
technical grade - good for a purpose. The impurities are controlled such
that they will not interfere with the intended process. For example, tech
grade chemicals for ceramic glazes won't contain agent which would give
off-color glazes, but may contain substantial amounts of agents which don't
affect color quality...
If I was smart, I'd have a clever .sig