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QATS SPECIAL-REQUEST & SITE-SPECIFIC PESs

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<strong>QATS</strong> <strong>SPECIAL</strong>-<strong>REQUEST</strong> & <strong>SITE</strong>-<strong>SPECIFIC</strong> <strong>PESs</strong><br />

Why do Regions order special-request <strong>PESs</strong>?<br />

CLP target compounds needed at defined concentrations<br />

and/or in specific combinations.<br />

Site-specific target compounds not found on the CLP list.<br />

Site-specific matrices needed.<br />

Full-volume and/or double-blind <strong>PESs</strong> required.<br />

Validation of method or site-specific detection limits are<br />

required.<br />

Laboratory comparisons or evaluations are needed.<br />

Verification of project-specific analytical precision and<br />

accuracy needs.<br />

Other RPM considerations.<br />

19th Annual NARPM Training Conference June 2-5, 2009 Atlanta, Georgia 9

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