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: 2009 TNI
Section: V1M5, Section 1.7.3.2
REQUEST:
Can you please clarify what is meant by "methods tha specify colony counts such as membrane filter or plated media." Does this mean all methods that are enumeration? Or just the membrane filter and plated media methods?
Thank you!
TNI FINAL RESPONSE:
Comparability of responses found in environmental microbiological testing is an important laboratory tool for ensuring comparability between multiple analysts or parallel counts determined in a laboratory with only a single analyst. The current language in the 2009 TNI Standard relates to the colony counts determined with membrane filter testing and plated media.