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: Possible methods for participation, e.g.: ISO 6222
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
Is currently underway. Can still be booked.
Frozen shipping March 2025 Add to cart
Aerobic total count drinking water
Article Number: 2010656
April 2026 Add to cart
E.coli, Coliforme bacteria drinking water
Parameters (quantitative): E.coli [cfu/100ml], Coliforms [cfu/100ml]
Article Number: 2010654
Description: Possible methods for participation, e.g.: drinking water regulation
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 September 2025 Add to cart
E.coli, Coliforme bacteria drinking water
Article Number: 2010654
April 2026 Add to cart
Enterococcus drinking water
Parameters (quantitative): Enterococcus [cfu/100ml]
Article Number: 2010658
Description: Possible methods for participation, e.g.: ISO 7899-2
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
Is currently underway. Can still be booked.
Frozen shipping March 2025 Add to cart
Enterococcus drinking water
Article Number: 2010658
April 2026 Add to cart
Legionella spp. drinking water
Parameters (quantitative): Legionella spp. plating (original sample) [cfu/100ml], Legionella spp. membrane filtration (with acid treatment) [cfu/100ml]
Article Number: 2010114
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 2025 Add to cart
Legionella spp. drinking water
Article Number: 2010114
September 2026 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 2025 Add to cart
Microplastic – particle number
Article Number: 2010395
December 2026 Add to cart
PFAS in drinking water
Parameters (quantitative): total perfluorooctanesulfonic acid (CAS 1763-23-1) [ng/l], total perfluorooctanoic acid (CAS 335-67-1) [ng/l], total perfluorononanoic acid (CAS 375-95-1) [ng/l], total perfluorohexane sulfonic acid (CAS 355-46-4) [ng/l]
Article Number: 2011123
Description: In each case, the sum of linear and branched isomers of PFOS, PFOA, PFNA and PFHxS is queried. The concentration of per- and polyfluorinated substances (PFAS) is in the ng/kg range.
Category: chemical-physical testing Environmental analytics drinking water
Accreditation: This proficiency test is not included in the scope of the accreditation.
Frozen shipping September 2025 Add to cart
PFAS in drinking water
Article Number: 2011123
September 2026 Add to cart
Ps. Aeruginosa drinking water
Parameters (quantitative): Ps.aeruginosa [cfu/100ml]
Article Number: 2010660
Description: Possible methods for participation, e.g.: ISO 16266
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 2025 Add to cart
Ps. Aeruginosa drinking water
Article Number: 2010660
July 2026 Add to cart
1 Parameter mit dieser Kennzeichnung sind abhangig von der Teilnehmerzahl und/oder der Materialauswahl.
Unter Umständen kann es vorkommen, dass dieser Parameter im Ringversuch nicht zur Verfügung steht.