Clostridium perfringens in Water

This proficiency testing sample is produced in accordance with ISO/IEC 17043:2010. All information regarding the use of this material can be found in the reporting packet supplied for each sample.

Set contains 2 sterile screw cap vials each containing a Vitroid (a small disk containing the possible organisms).
This product does not contain the phosphate buffered hydrolyzing solution. The buffer can be ordered separately under the number Z699489 (Aldrich).

This product was designed, produced and verified for accuracy and stability in accordance with ISO/IEC 17025:2005, ISO GUIDES 34 and 35, and ISO/IEC 17043.

Proficiency testing samples are presented as single blind. No values for the samples are released until the testing period concludes. Values of analytes vary lot to lot.

Proficiency Testing Schedule (2018-2019)

Drinking Water
WS18-1January 17 - March 2, 2018
WS18-2March 28 - May 11, 2018
WS18-3July 11 - August 24, 2018
WS18-4September 26 - November 9, 2018

WS19-1January 16 - March 1, 2019
WS19-2March 27 - May 10, 2019
WS19-3 July 10 - August 23, 2019
WS19-4 September 25 - November 8, 2019

Quick-Turn Study - (non-scheduled proficiency test that is available at any time)

This PT sample is designed for the quantitative analysis of perfringens in water. The PT sample is provided in duplicate as a stable dehydrated vitroid requiring hydration. The additional sample is provided for mishaps in the lab. Store the PT sample as directed. The dehydrated vitroid sample is stable for a time exceeding the study schedule.