Wisconsin Administrative Code
Department of Natural Resources
NR 100-199 - Environmental Protection General
Chapter NR 149 - Laboratory Accreditation
Subchapter V - Proficiency Testing
Section NR 149.22 - Required proficiency testing samples and frequency of analysis
Universal Citation: WI Admin Code ยง NR 149.22
Current through August 26, 2024
(1) REQUIREMENTS.
(a) A laboratory shall
participate in at least one PT sample study per accreditation period as
specified in sub. (2), subject to all the following:
1. For aqueous and non-aqueous matrices, a
laboratory shall analyze aqueous matrix PT samples for each combination of
technology and analyte or analyte group in its fields of
accreditation.
2. For the drinking
water matrix, a laboratory shall analyze PT samples for each combination of
method and analyte or ana-lyte group in its fields of certification. Acceptance
criteria for these samples are set in s.
NR 149.27.
(b) PT samples may be those offered by
approved PT sample providers at regular intervals, as "rapid response" PT
samples, or as custom formulations approved by the department.
(c) A laboratory shall report a proper method
code, which matches the technology and analyte or analyte group for which
accreditation is held, with results for PT samples.
Note: A link to the universal list of method codes for methods and technologies is available from the NELAC Institute (TNI) which can be found on the Wisconsin department of natural resources laboratory accreditation program website.
(2) LISTS OF REQUIRED PT SAMPLES AND APPROVED PT SAMPLE PROVIDERS.
(a) The department shall
seek the advice of the council prior to identifying required PT samples and
approved PT sample providers.
(b)
The list shall identify matrix-specific PT samples required for submittal for
renewal of accreditation or with initial or revised applications and the
specific PT sample providers approved for supplying each required PT sample.
Lists of required PT samples and approved PT sample providers can be found on the Wisconsin department of natural resources laboratory accreditation program website.
Disclaimer: These regulations may not be the most recent version. Wisconsin may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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