Manual for the certification of laboratories analyzing drinking water :
criteria and procedures quality assurance /
prepared by the Laboratory Certification Program Revision Committee.
Washington, D.C. : U.S. Environmental Protection Agency, 1991.
Drinking water /
Drinking water / Standards /
Drinking water > Drinking water / Law and legislation > Drinking water / Law and legislation / United States.
"Office of Drinking Water"--Cover.
"Change 1-October 1991" -- Cover.
1 v. (various pagings)
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