Name Planned shipping method Start Date  
Aerobic total count drinking water
Parameters (quantitative): aerobic total count 36°C [KbE/ml], aerobic total count 22°C [KbE/ml]
Article Number: 2010656
Description: water quality
Category: immunological, molecular biological and microbiological testing Environmental analytics drinking water
Accreditation: This proficiency test is not included in the scope of the accreditation.
risk group 1
Frozen shipping April 2026 Add to cart
Aerobic total count drinking water
Article Number: 2010656
April 2027 Add to cart
Drinking water - 1,2,4-triazole
Article Number: 2011380
Category: chemical-physical testing Environmental analytics drinking water
Accreditation: This proficiency test is not included in the scope of the accreditation.
New proficiency testing
Refrigerated shipping November 2026 Add to cart
Drinking water - 1,2,4-triazole
Article Number: 2011380
November 2027 Add to cart
Drinking water - contaminants
Article Number: 2011381
Category: chemical-physical testing Environmental analytics drinking water
Accreditation: This proficiency test is not included in the scope of the accreditation.
New proficiency testing
Refrigerated shipping November 2026 Add to cart
Drinking water - contaminants
Article Number: 2011381
November 2027 Add to cart
Drinking water - pH, conductivity (ISO 10523, ISO 7888)
Article Number: 2011379
Category: chemical-physical testing Environmental analytics drinking water
Accreditation: This proficiency test is not included in the scope of the accreditation.
New proficiency testing
Shipping at room temperature December 2026 Add to cart
Drinking water - pH, conductivity (ISO 10523, ISO 7888)
Article Number: 2011379
December 2027 Add to cart
Enumeration of E. coli & coliform bacteria in drinking water
Parameters (quantitative): E.coli [cfu/100ml], Coliforms [cfu/100ml]
Article Number: 2010654
Description: water quality Separate evaluation of the parameters E. coli and coliform bacteria
Category: immunological, molecular biological and microbiological testing Environmental analytics drinking water
Accreditation: This proficiency test is not included in the scope of the accreditation.
risk group 1
Frozen shipping April 2026 Add to cart
Enumeration of E. coli & coliform bacteria in drinking water
Article Number: 2010654
April 2027 Add to cart
Enumeration of enterococci in drinking water
Parameters (quantitative): Enterococcus [cfu/100ml]
Article Number: 2010658
Description: water quality
Category: immunological, molecular biological and microbiological testing Environmental analytics drinking water
Accreditation: This proficiency test is not included in the scope of the accreditation.
risk group 1-2
Frozen shipping April 2026 Add to cart
Enumeration of enterococci in drinking water
Article Number: 2010658
April 2027 Add to cart
Enumeration of Legionella spp. in drinking water
Parameters (quantitative): Legionella spp. plating (original sample) [cfu/100ml], Legionella spp. membrane filtration (with acid treatment) [cfu/100ml]
Article Number: 2010114
Description: water quality
Category: immunological, molecular biological and microbiological testing Environmental analytics drinking water
Accreditation: This proficiency test is not included in the scope of the accreditation.
risk group 2
Frozen shipping September 2026 Add to cart
Enumeration of Legionella spp. in drinking water
Article Number: 2010114
September 2027 Add to cart
Enumeration of Ps. aeruginosa in drinking water
Parameters (quantitative): Ps.aeruginosa [cfu/100ml]
Article Number: 2010660
Description: water quality
Category: immunological, molecular biological and microbiological testing Environmental analytics drinking water
Accreditation: This proficiency test is not included in the scope of the accreditation.
risk group 2
Frozen shipping July 2026 Add to cart
Enumeration of Ps. aeruginosa in drinking water
Article Number: 2010660
July 2027 Add to cart
Enumeration of somatic coliphages in water (ISO 10705-2)
Article Number: 2011346
Description: Water quality Quantitative analysis for bacteriophages
Category: immunological, molecular biological and microbiological testing Environmental analytics drinking water
Accreditation: This proficiency test is not included in the scope of the accreditation.
risk group 1
New proficiency testing
Frozen shipping November 2026 Add to cart
Enumeration of somatic coliphages in water (ISO 10705-2)
Article Number: 2011346
November 2027 Add to cart
Microplastic – particle number
Parameters (quantitative): particle number [particle number / g]
Article Number: 2010395
Description: These are artificial samples that can contain particles and fibres in the range of 200 µm to 600 µm.
Category: chemical-physical testing Environmental analytics drinking water
Accreditation: This proficiency test is not included in the scope of the accreditation.
Refrigerated shipping December 2026 Add to cart
Microplastic – particle number
Article Number: 2010395
December 2027 Add to cart
1 Parameters with this label depend on the number of participants and/or the choice of materials.
Under certain circumstances, this parameter may not be available in the proficiency test.