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11-30-2007, 12:12 AM
| #11 |
| Sr. Member  Join Date: Jun 2005
Posts: 689
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|  The party that is paying for the test (employer, PO, etc) is the one that determines what the cutoff limit should be - not the labs. The purchaser of the test can set the cutoff limit to any number desired. However, if the test is a DOT test, the sample must be screened at 50 ng (15 ng for the confirmation test), regardless of which lab performs the test. Last edited by lew scannon : 11-30-2007 at 02:25 AM. |
 
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