Proficiency testing (PT): Microbiological parameters in drinking water

Proficiency testing (PT): Microbiological parameters in drinking water

Distribution Schedule



Round Registration
deadline		 Despatch
date		 Reporting
deadline		 Final Report
February 2018 19/Jan. 05/Feb. 02/Mar. 19/Mar.
Final Reports in the Customer Area
May 2018 04/May 21/May 15/Jun. 02/Jul.
Final Reports in the Customer Area
September 2018 07/Sep. 24/Sep. 19/Oct. 05/Nov.
Deadline reporting results: 19/Oct.

Scope of the Interlaboratory Proficiency Testing

The scope of this proficiency testing is the evaluation of the performance of laboratories for the quantitative determination of water microbiological parameters (ex. drinking water, mineral water, groundwater).

Target organisms (microorganisms)

  • Total aerobic count at 22°C
    (1 - 1000 ufc/mL)
  • Total aerobic count at 37°C
    (1 - 1000 ufc/mL)
  • Coliform bacteria
    (1 - 1000 ufc/100mL)
  • Enterococci
    (1 - 1000 ufc/100mL)
  • Escherichia coli
    (1 - 1000 ufc/100mL)
  • Escherichia coli (presence/absence) (ufc/100mL)
  • Legionella pneumophila
    (1 - 1000 ufc/L)
  • Legionella pneumophila (presence/absence) (ufc/L)
  • Pseudomonas Aeruginosa
    (1 - 1000 ufc/100mL)
  • Pseudomonas Aeruginosa (presence/absence) (ufc/100mL)
  • Clostridium perfringens
    (1 - 1000 ufc/100mL)
  • Clostridium perfringens (presence/absence) (ufc/100mL)
  • Staphylococcus aureus
    (1 - 1000 ufc/100mL)
  • Staphylococcus aureus (presence/absence) (ufc/100mL)

Note: Measurement methods for the determination of the Colony Forming Units (CFU/ml).

Proficiency test item:

Test materials to be prepared from discs contain viable microorganisms.

  • 1 x 1000 mL of the test material for the determination of all parameters except Legionella pneumophila, Clostridium perfringens, Staphylococcus aureus and Pseudomonas Aeruginosa.
  • 2 x 1000 mL of the test material for the determination of Escherichia coli (presence/absence).
  • 1 x 1000 mL of the test material for the determination of Legionella pneumophila.
  • 2 x 1000 mL of the test material for the determination of Legionella pneumophila(presence/absence).
  • 1 x 1000 mL of the test material for the determination of Clostridium perfringens.
  • 2 x 1000 mL of the test material for the determination of Clostridium perfringens (presence/absence).
  • 1 x 1000 mL of the test material for the determination of Staphylococcus aureus.
  • 2 x 1000 mL of the test material for the determination of Staphylococcus aureus (presence/absence).
  • 1 x 1000 mL of the test material for the determination of Pseudomonas Aeruginosa.
  • 2 x 1000 mL of the test material for the determination of Pseudomonas Aeruginosa (presence/absence).

  • 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).

    REQUEST A QUOTE 2018

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