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 2027 Add to cart
Drinking water - 1,2,4-triazole
Parameters (quantitative): 1,2,4-triazole (CAS 288-88-0) [µg/l]
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 October 2026 Add to cart
Drinking water - 1,2,4-triazole
Article Number: 2011380
November 2027 Add to cart
Drinking water - anions
Article Number: 2011527
Description: Possible testing e.g. by EN ISO 10304-1, EN 26777, EN ISO 15682
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 December 2027 Add to cart
Drinking water - cations
Article Number: 2011528
Description: Possible testing e.g. by EN ISO 11885, EN ISO 15586, EN ISO 12846, EN ISO 17852, EN ISO 14911, EN ISO 17294-2
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 December 2027 Add to cart
Drinking water - chromium (VI)
Article Number: 2011531
Description: Possible testing e.g. by EN ISO 18724, EN ISO 18412, EN ISO 23913
Category: chemical-physical testing Environmental analytics drinking water
Accreditation: This proficiency test is not included in the scope of the accreditation.
New proficiency testing
Frozen shipping November 2027 Add to cart
Drinking water - colour, turbidity
Article Number: 2011533
Description: Possible testing e.g. by EN ISO 7887, EN ISO 7027-1
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 December 2027 Add to cart
Drinking water - contaminants
Parameters (quantitative): bisphenol A (CAS 80-05-7) [µg/l], epichlorhydrin (CAS 106-89-8) [µg/l], acrylamide (CAS 79-06-1) [µg/l]
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 2027 Add to cart
Drinking water - DOC, TOC
Article Number: 2011530
Description: Possible testing e.g. by EN 1484
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 2027 Add to cart
Drinking water - pH, conductivity (ISO 10523, ISO 7888)
Parameters (quantitative): pH value [-], electrical conductivity [mS/m]
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 November 2026 Add to cart
Drinking water - pH, conductivity (ISO 10523, ISO 7888)
Article Number: 2011379
December 2027 Add to cart
Drinking water - trace elements
Article Number: 2011529
Description: Possible testing e.g. by EN ISO 11885, EN ISO 15586, EN ISO 12846, EN ISO 17852, EN ISO 14911, EN ISO 17294-2
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 December 2027 Add to cart
Drinking water - trifluoroacetic acid
Article Number: 2011532
Category: chemical-physical testing Environmental analytics drinking water
Accreditation: This proficiency test is not included in the scope of the accreditation.
New proficiency testing
Frozen shipping November 2027 Add to cart
Enumeration of E. coli & coliforms 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 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
Frozen shipping April 2027 Add to cart
Enumeration of Legionella spp. in drinking water
Parameters (quantitative): Legionella spp. (direct plating) [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 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 2027 Add to cart
Enumeration of somatic coliphages in water (ISO 10705-2)
Parameters (quantitative): somatic coliphages [pfu/100 ml]
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 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 2027 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], total perfluorobutanoic acid (CAS 375-22-4) 1 [ng/l], total perfluoropentanoic acid (CAS 2706-90-3) 1 [ng/l], total perfluorohexanoic acid (CAS 307-24-4) 1 [ng/l], total perfluoroheptanoic acid (CAS 375-85-9) 1 [ng/l], total perfluorodecanoic acid (CAS 335-76-2) 1 [ng/l], total perfluorundecanoic acid (CAS 2058-94-8) 1 [ng/l], total perfluorododecanoic acid (CAS 307-55-1) 1 [ng/l], total perfluorotridecanoic acid (CAS 72629-94-8) 1 [ng/l], total perfluorobutane sulfonic acid (CAS 375-73-5) 1 [ng/l], total perfluoropentane sulfonic acid (CAS 2706-91-4) 1 [ng/l], total perfluoroheptane sulfonic acid (CAS 375-92-8) 1 [ng/l], total perfluorononane sulfonic acid (CAS 68259-12-1) 1 [ng/l], total perfluorodecane sulfonic acid (CAS 335-77-3) 1 [ng/l], total perfluoroundecane sulfonic acid (CAS 749786-16-1) 1 [ng/l], total perfluorododecane sulfonic acid (CAS 79780-39-5) 1 [ng/l], total perfluorotridecane sulfonic acid (CAS 791563-89-8) 1 [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.
New parameter selection
Frozen shipping November 2026 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.