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Manual for the Certification of Laboratories Analyzing Drinking Water

Criteria and Procedures
Quality Assurance
Fifth Edition

EPA 815-R-05-004, January 2005

This manual supercedes the fourth edition and describes the implementation of the Drinking Water Laboratory Certification program, including the procedures a laboratory follows and the criteria a laboratory meets to be certified to analyze drinking water compliance samples.

To order a hardcopy of this manual, you will need the title and EPA Publication number. Hardcopies of this publication may be ordered from NSCEP. For more information, contact the Safe Drinking Water Hotline at 1-800-426-4791.



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