
Scope of the Interlaboratory Proficiency Testing

PARAMETERS
- Total aerobic count at 22 oC (1 - 1000 UFC/mL)
- Total aerobic count at 36 oC (1 - 1000 UFC/mL)
Reference method: ISO 6222 or equivalent methods.
- Enumeration of Coliform bacteria (1 - 1000 UFC/100mL)
- Enumeration of Escherichia coli (1 - 1000 UFC/100mL)
Reference method: ISO 9308-1 or equivalent methods.
- Enumeration of Enterococci (1 - 1000 UFC/100mL)
Reference method: ISO 7899-2 or equivalent methods.
- Enumeration of Clostridium perfringens (including spores)
(1 - 1000 UFC/100mL)
Reference method: ISO 14189 or equivalent methods.
- Enumeration of Coagulase Positive Staphylococci (1 - 1000 UFC/250mL)
- Enumeration of Pseudomonas Aeruginosa (1 - 1000 UFC/250mL)
Reference method: ISO 16266 or equivalent methods.
- Enumeration of Legionella pneumophila (10 - 10.000 UFC/L)
- Enumeration of Legionella spp (10 - 10.000 UFC/L)
Reference method: ISO 11731 or equivalent methods.
NOTE - MPN RESULTS: Participants can also submit results obtained by methods based on the MPN technique. The results obtained with the MPN technique will be evaluated (z-score) using the reference value calculated from the statistical treatment of the results obtained with the UFC technique.

Proficiency test item:
- 1 x 1L of the test material for the determination of Total aerobic count at 22 oC and 36 oC.
- 10 x 1L of the test material for the determination of Coliform bacteria and Escherichia coli.
- 10 x 1L of the test material for the determination of Enterococci.
- 1 x 1L of the test material for the enumeration of Clostridium perfringens (including spores).
- 1 x 1L of the test material for the enumeration of Coagulase Positive Staphylococci.
- 1 x 1L of the test material for the enumeration of Pseudomonas Aeruginosa.
- 10 x 1L of the test material for the enumeration of Legionella pneumophila.
- 10 x 1L of the test material for the enumeration of Legionella spp.
NOTE: All the details for the preparation of the final test sample are included in the Guide Lines provided with the test samples.
ADDITIONAL TEST SAMPLES: For costs and availability of additional test samples contact Qualitycheck (e-mail sales@qualitychecksrl.com)

ANALYSIS:
For each measurand shall be reported one result.
ADDITIONAL RESULTS: Each participant can submit up to 5 results* for the same analyte, thus obtaining an evaluation of laboratory performance for different operators, instruments, etc. (e.g. operator 1/operator 2, instrument A/instrument B, etc..).
Request a quote
Download and complete the Application Form, selecting for each matrix, the measurands and the period in which you want to participate. Send it by email (sales@qualitychecksrl.com) or by FAX (0039 0656562874).