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.National Environmental Proficiency Testing Program
Proficiency Testing (PT) is defined as a means of evaluating a laboratory or testing organization's performance under controlled conditions relative to a given set of criteria through analysis of unknown samples provided by an external source. The PT program consists of:
- A PT Expert Committee that establishes the requirement for proficiency testing.
- A PT Program Executive Committee who manages the implementation of the program.
- A PT Provider Accreditor that accredits organizations as PT Providers.
- Private and public sector PT Providers that manufacture and provide PT samples and evaluate the results.
- Fields of Proficiency Testing (FoPTs) - the matrices, analytes, concentration ranges, and acceptance limits adopted for the PT program.
The PT Program relies on consensus standards representing the best professional practice in the industry to establish the requirements for this program. The TNI Standard for PT Providers, Volume 3, is modeled after ISO/IEC Guide 43 "General Requirements for the Competence of Testing and Calibration Laboratories." TNI Standard Volume 4 is the requirements for a Proficiency test Provider Accreditor. The Standard is based on ISO/IEC 17011:2004 "Conformity Assessment � General Requirements for Accreditation Bodies Accrediting Conformity Assessment Bodies."
- PT Program Executive Committee (PTPEC)
- Advocacy Program
- Consensus Standards Development Program
- Laboratory PT Committee
- National Environmental Field Activities Program (NEFAP)
- National Environmental Laboratory Accreditation Program (NELAP)
- Stationary Source Audit Sample Program (SSASP)
- Upcoming Meetings
- Training and Workshops
- Frequently Asked Questions
- Policies and SOPs
- Newsletter
- Document Library
- Join TNI