Proficiency testing catalogue: environmental analytics
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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
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November 2026 | Add to cart | |
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Drinking water - 1,2,4-triazole Article Number: 2011380 |
November 2027 | Add to cart | ||
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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
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November 2026 | Add to cart | |
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Drinking water - contaminants Article Number: 2011381 |
November 2027 | Add to cart | ||
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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
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December 2026 | Add to cart | |
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Drinking water - pH, conductivity (ISO 10523, ISO 7888) Article Number: 2011379 |
December 2027 | Add to cart | ||
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Elution of solids - percolation method (DIN 19528) Parameters (quantitative): chromium (1st percolation) [µg/l], molybdenum (1st percolation) [µg/l], vanadium (1st percolation) [µg/l], sulphate (1st percolation) [mg/l], PAH15 (1st percolation) [µg/l], chromium (2:1-column percolation) [µg/l], molybdenum (2:1-column percolation) [µg/l], vanadium (2:1-column percolation) [µg/l], sulphate (2:1-column percolation) [mg/l], PAH15 (2:1-column percolation) [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
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October 2026 | Add to cart | |
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Elution of solids - percolation method (DIN 19528) Article Number: 2011277 |
October 2027 | Add to cart | ||
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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. |
Shipping at room temperature
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December 2026 | Add to cart | |
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Hydrocarbons in soil (ISO 16703) Article Number: 2011278 |
December 2027 | Add to cart | ||
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Marine water - chlorite, chlorate Parameters (quantitative): chlorite [µg/l], chlorate [µg/l] Article Number: 2011383 Description: Possible testing e.g. by EPA 300.1 Category: chemical-physical testing Environmental analytics marine water Accreditation: This proficiency test is not included in the scope of the accreditation. New proficiency testing |
 Frozen shipping
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December 2026 | Add to cart | |
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Marine water - chlorite, chlorate Article Number: 2011383 |
December 2027 | Add to cart | ||
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Marine water - metals Parameters (quantitative): arsenic (As) [µg/l], chromium (Cr) [µg/l], copper (Cu) [µg/l], mercury (Hg) [µg/l], nickel (Ni) [µg/l], zinc (Zn) [µg/l], lead (Pb) [µg/l], cadmium (Cd) [µg/l] Article Number: 2011382 Category: chemical-physical testing Environmental analytics marine water Accreditation: This proficiency test is not included in the scope of the accreditation. New proficiency testing |
Shipping at room temperature
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December 2026 | Add to cart | |
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Marine water - metals Article Number: 2011382 |
December 2027 | Add to cart | ||
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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
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December 2026 | Add to cart | |
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Microplastic – particle number Article Number: 2010395 |
December 2027 | Add to cart | ||
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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
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September 2026 | Add to cart | |
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PFAS in drinking water Article Number: 2011123 |
September 2027 | Add to cart | ||
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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], dry matter 1 [g/100 g] 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
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June 2026 | Add to cart | |
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PFAS in soil Article Number: 2011127 |
June 2027 | 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.
Under certain circumstances, this parameter may not be available in the proficiency test.