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Ask the Expert Question-and-Answer Archive
TRI

by Joelie Zak, Scientific Control Laboratories, Inc.


Please read this disclaimer:
Joelie Zak an independent consultant and is not employed by the EPA or any government agency. The answers that she provides are based solely on her personal opinion and do not reflect the policy of this hosting website, the EPA or any other organization. Although she makes every attempt to provide answers that are correct, she does not always have a full understanding of the background to the question and therefore she cannot guarantee the correctness of his answers. Therefore, they are to be taken solely as a guide, and the reader is encouraged to make additional inquiries before pursuing a course of action to resolve his/her problem.

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