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  • Type of Testing: Chemical-physical
Name Planned shipping method Start Date  
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
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
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
PFAS in soil
Parameters (quantitative): total perfluorooctanesulfonic acid (CAS 1763-23-1) [µg/kg dry matter], total perfluorooctanoic acid (CAS 335-67-1) [µg/kg dry matter], total perfluorononanoic acid (CAS 375-95-1) [µg/kg dry matter], total perfluorohexane sulfonic acid (CAS 355-46-4) [µg/kg dry matter]
Article Number: 2011127
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 µg/kg range.
Category: chemical-physical testing Environmental analytics soil
Accreditation: This proficiency test is not included in the scope of the accreditation.
Frozen shipping June 2025 Add to cart
PFAS in soil
Article Number: 2011127
June 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.