develop consensus standards for use by TNI's programs. This group has a support role in assisting other programs with activities such as guidance and standards interpretation.
fosters the generation of data of known and documented quality is through the National Environmental Laboratory Accreditation Program, or NELAP. The purpose of this program is to establish and implement a program for the accreditation of environmental laboratories.
is to establish and maintain a national PT program to support TNI’s National Environmental Laboratory Accreditation Program, and other activities.
Field Activities Program (NEFAP) Executive Committee is to establish and implement an accreditation program for field sampling and measurement organizations (FSMOs).
Audit Sample Program is to develop consensus standards for the manufacture and analysis of audit samples for source emission testing.
on a variety of topics of interest to the environmental measurement community. TNI also hosts two regularly scheduled meetings per year, typically in January and August. Both are a week long and involve open meetings of TNI committees as well as training courses and other special sessions.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
Contact the Committee Chair or Program Administrator to participate in the calls of this committee.
| M. Valerie Slaven, Chair Valerie Slaven Consulting Services Sparta, IL mslaven@teklabinc.com | Ken Jackson, Program Administrator The NELAC Institute Ballston Spa, NY ken.jackson@nelac-institute.org |
| Jay Armstrong Virginia Dept.of General Services Richmond, VA jay.armstrong@dgs.virginia.gov | Paula Blaze NJDEP Trenton, NJ paula.blaze@dep.state.nj.us |
| Eric Davis Austin Water Utility Austin, TX Eric.Davis@austintexas.gov | Deb Gaynor Phoenix Chemistry Services N. Ferrisburgh, VT dgaynor@phoenixchemistryservices.com |
| Shawn Kassner Neptune Inc. Lakewood, CO skassner@neptuneinc.org | Charles Neslund Eurofins Lancaster Labs Environmental Lancaster, PA CharlesNeslund@EurofinsUS.com |
| Max Patterson Utah Dept. of Health Taylorsville, UT mpatterson@utah.gov | Colin Wright Florida DEP Tallahassee, FL colin.wright@dep.state.fl.us |
TNI has posted the following document and companion spreadsheet to help laboratories calculate Relative Standard Error as required by Section 1.7.1.1 of Module 4 of the TNI Laboratory Accreditation Standard.
How to Calculate RSE (PDF)
RSE Calculation Spreadsheet (Excel)
Definition and Procedure for the Determination of the Method Detection Limit (PDF)
