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AWWA WQTC60645
- Verifying the Reliability of EPA Method 314 to Measure Perchlorate at Sub ppb Levels vs New EPA Method Options
- Conference Proceeding by American Water Works Association, 11/15/2004
- Publisher: AWWA
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This slide presentation outlines information on methods of measuring perchlorate at sub ppb levels. Topics covered include: accuracy at the sub-ppb level; analytical options for ClO<sub>4</sub> at this concentration range; principles of Methods 314, 314.1, 330.0, and 331; comparison of these methods; 3 issues of measuring at this level; Massachusetts demonstration of capability; Massachusetts batch QC criteria for sub-ppb analysis; required single blind PT studies for MA; results of single blind performance; and, performance assessment.