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
Aerobic total count drinking water
Article Number: 2010656
April 2028 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.
Is currently underway. Can still be booked.
Refrigerated shipping October 2026 Add to cart
Drinking water - 1,2,4-triazole
Article Number: 2011380
November 2027 Add to cart
Drinking water - 1,2,4-triazole
Article Number: 2011380
November 2028 Add to cart
Drinking water - anions
Parameters (quantitative): chloride [mg/l], fluoride [mg/l], nitrate [mg/l], nitrite [mg/l], sulphate [mg/l], phosphorus (P) [mg/l]
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 - anions
Article Number: 2011527
December 2028 Add to cart
Drinking water - cations
Parameters (quantitative): aluminium (Al) [mg/l], boron (B) [mg/l], calcium (Ca) [mg/l], iron (Fe) [mg/l], magnesium (Mg) [mg/l], manganese (Mn) [mg/l], sodium (Na) [mg/l], potassium (K) [mg/l], copper (Cu) [mg/l], lithium (Li) [mg/l], strontium (Sr) [mg/l], barium (Ba) [mg/l]
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 - cations
Article Number: 2011528
December 2028 Add to cart
Drinking water - chromium (VI)
Parameters (quantitative): chromium VI (Cr VI) [µg/l]
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 - chromium (VI)
Article Number: 2011531
November 2028 Add to cart
Drinking water - colour, turbidity
Parameters (quantitative): absorption of light at a wavelength of 436 nm [m^(−1)], absorption of light at a wavelength of 525 nm [m^(−1)], absorption of light at a wavelength of 620 nm [m^(−1)], turbidity [NTU]
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 - colour, turbidity
Article Number: 2011533
December 2028 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.
Refrigerated shipping November 2027 Add to cart
Drinking water - contaminants
Article Number: 2011381
November 2028 Add to cart
Drinking water - DOC, TOC
Parameters (quantitative): total organic carbon (TOC) [mg/l], dissolved organic carbon (DOC) [mg/l]
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 - DOC, TOC
Article Number: 2011530
November 2028 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.
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 - pH, conductivity (ISO 10523, ISO 7888)
Article Number: 2011379
December 2028 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.