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Water Microbiology (QWAS)

"Choose from 18 types of water sample with our water microbiology proficiency testing scheme" 

 

Our QWAS Water Microbiology proficiency testing scheme is the world’s largest water microbiology proficiency testing programme, trusted by more than 1,000 participating laboratories globally. Established in 2002, it offers a comprehensive choice of 18 water samples – including potable, process, mineral, effluent sludge, industrial, surface/waste/bathing, recreational, sea, dialysis and wastewaters. In addition, it features our best-selling PT-WT-412 sample for the enumeration of E. coli, coliforms, and Enterococci (faecal streptococci).

 

As well as helping laboratories ensure water safety, and comply with testing regulations in a wide range of countries and regions, successful participation in QWAS can provide laboratories with confidence in their results and the equipment they use.

 

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{{ "Please see individual products for specific accreditation status" | truncate(70) }} See our accreditations

ISO/IEC 17043
ISO 9001

Scheme Information

Round Dates

Round

Despatch Date

Reporting Deadline

WT334

12 February 2024

18 March 2024

WT335

11 March 2024

15 April 2024

WT336

08 April 2024

13 May 2024

WT337

13 May 2024

17 June 2024

WT338

17 June 2024

22 July 2024

WT339

15 July 2024

19 August 2024

WT341

09 September 2024

14 October 2024

WT342

07 October 2024

11 November 2024

WT343

11 November 2024

16 December 2024

WT344

09 December 2023

13 January 2025

Scheme Documents


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