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
CO2 evolution test (ISO 9439, OECD 301B)
Parameters (quantitative): CO2 [mg]
Article Number: 2011136
Description: The samples should be tested for biodegradability under aerobic conditions at 25°C over a period of 28 days.
Category: immunological, molecular biological and microbiological testing Environmental analytics biodegradation
Accreditation: This proficiency test is not included in the scope of the accreditation.
Refrigerated shipping September 2025 Add to cart
CO2 evolution test (ISO 9439, OECD 301B)
Article Number: 2011136
September 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
E.coli, Coliforme bacteria surface- and waste water
Parameters (quantitative): E.coli [cfu/100ml], Coliforms [cfu/100ml]
Article Number: 2010670
Description: Possible methods for participation, e.g.: ISO 9308
Category: immunological, molecular biological and microbiological testing Environmental analytics surface- and waste water (bath 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 surface- and waste water
Article Number: 2010670
April 2026 Add to cart
Elution of solids - percolation method (DIN 19528)
Parameters (quantitative): chromium [µg/l], molybdenum [µg/l], Vanadium [µg/l], sulphate [mg/l], PAH16 [µg/l]
Article Number: 2011277
Description: The percolation should be carried out using the detailed method according to DIN 19528. The individual values of the eluates and the calculated 2:1 column percolate value are queried.
Category: chemical-physical testing Environmental analytics soil
Accreditation: This proficiency test is not included in the scope of the accreditation.
New proficiency testing
Shipping at room temperature October 2025 Add to cart
Elution of solids - percolation method (DIN 19528)
Article Number: 2011277
October 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
Enterococcus surface- and waste water (bath water)
Parameters (quantitative): Enterococcus [cfu/100ml]
Article Number: 2010672
Description: Possible methods for participation, e.g.: ISO 7899-1
Category: immunological, molecular biological and microbiological testing Environmental analytics surface- and waste water (bath 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 surface- and waste water (bath water)
Article Number: 2010672
April 2026 Add to cart
Enumeration moulds indoor air
Parameters (quantitative): moulds [cfu/filter]
Article Number: 2010954
Description: Possible methods for participation, e.g.: ISO 16000
Category: immunological, molecular biological and microbiological testing Environmental analytics indoor air
Accreditation: This proficiency test is not included in the scope of the accreditation.
risk group 1
Refrigerated shipping July 2025 Add to cart
Enumeration moulds indoor air
Article Number: 2010954
July 2026 Add to cart
Hydrocarbons in soil (ISO 16703)
Parameters (quantitative): total petroleum hydrocarbons (TPH) from C₁₀ to C₄₀ [mg/kg]
Article Number: 2011278
Category: chemical-physical testing Environmental analytics soil
Accreditation: This proficiency test is not included in the scope of the accreditation.
New proficiency testing
Shipping at room temperature December 2025 Add to cart
Hydrocarbons in soil (ISO 16703)
Article Number: 2011278
December 2026 Add to cart
Identification moulds in indoor air
Parameters (qualitative): identification of moulds
Article Number: 2011301
Description: Proficiency test series for testing for microbiological contamination of indoor air. This part deals with the identification of mold. Gel filters prepared with mold are used as sample material. No separate air sampling is carried out. Possible methods for participation are e.g. ISO 16000-17.
Category: immunological, molecular biological and microbiological testing Environmental analytics indoor air
Accreditation: This proficiency test is not included in the scope of the accreditation.
risk group 1
New proficiency testing
Refrigerated shipping July 2025 Add to cart
Identification moulds in indoor air
Parameters (qualitative): identification of moulds
Article Number: 2011301
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.