Chemistry Expert Committee
The mission of this committee is to improve the technical quality of environmental testing methodologies by providing tools (e.g., detection, quantitation and calibration) that assure the quality of data, which may be adopted by federal and state regulatory agencies. It is important that a balance between impact on laboratories and improvement in technical quality be maintained during this process.
Conference Calls: 1st Wednesday, 2:00pm - 3:30pm ET
|M. Valerie Slaven, Chair|
Valerie Slaven Consulting Services
|Ken Jackson, Program Administrator|
The NELAC Institute
Ballston Spa, NY
Austin Water Utility
Phoenix Chemistry Services
N. Ferrisburgh, VT
TNI has posted the following document and companion spreadsheet to help laboratories calculate Relative Standard Error as required by Section 220.127.116.11 of Module 4 of the TNI Laboratory Accreditation Standard.
How to Calculate RSE (PDF)
RSE Calculation Spreadsheet (Excel)