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.Standard Interpretation
Standard: 2003 NELAC
Section: 5.5.2.6 (c)
REQUEST:
Analysis of screening method 505 for 8 aroclors and Toxaphene. We have a question about Continued Proficiency. Is it necessary to perform continued proficiency for all 8 aroclors and toxaphene? Would it be acceptable to perform continued proficiency for only one pattern to meet this requirement?
TNI FINAL RESPONSE:
(Chemistry Expert Committee and NELAP AC, 9-23-15)
For initial demonstrations of capability all analytes of interest would need to be analyzed: In this case all aroclors and Toxaphene. For the continuing demonstration of capability only the method required spiking analytes would be necessary.