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
Frozen shipping April 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 April 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
Frozen shipping April 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
perfluorinated compounds in mineral 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 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.
Is currently underway. Can still be booked.
Frozen shipping November 2024 Add to cart
PFAS in drinking water
Article Number: 2011123
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.