Name Planned shipping method Start Date  
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 Ps. aeruginosa in recooling water
Parameters (quantitative): Ps.aeruginosa [cfu/100ml]
Article Number: 2010960
Description: water quality
Category: immunological, molecular biological and microbiological testing Environmental analytics recooling water
Accreditation: This proficiency test is within the scope of the A2LA accreditation.
risk group 2
Refrigerated 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 2026 Add to cart
Enumeration of somatic coliphages in water (ISO 10705-2)
Article Number: 2011346
November 2027 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.
Shipping at room temperature December 2026 Add to cart
Hydrocarbons in soil (ISO 16703)
Article Number: 2011278
December 2027 Add to cart
Identification moulds in indoor air
Parameters (qualitative): identification of moulds [genus]
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
Refrigerated shipping July 2027 Add to cart
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 December 2026 Add to cart
Marine water - chlorite, chlorate
Article Number: 2011383
December 2027 Add to cart
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 December 2026 Add to cart
Marine water - metals
Article Number: 2011382
December 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 2026 Add to cart
Microplastic – particle number
Article Number: 2010395
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 December 2026 Add to cart
PFAS in drinking water
Article Number: 2011123
September 2027 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], 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 June 2027 Add to cart
Plastic materials - aerobic biodegradability (ISO 14855-2, ASTM D5338-15)
Parameters (quantitative): Biodegradation via CO2 [%]
Article Number: 2011138
Description: The samples are to be tested for biodegradability at 58°C under aerobic conditions over a period of 45 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 October 2027 Add to cart
Plastic materials - anaerobic biodegradability (ASTM D5511)
Parameters (quantitative): Biodegradation via CO2 and CH4 development [%]
Article Number: 2011139
Description: The samples should be tested for biodegradability under anaerobic conditions at 37°C (mesophilic conditions) over a period of 30 days. Note: Please contact us if you would like to test the samples at 52°C (thermophilic conditions).
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 October 2027 Add to cart
Synthetic waste water - aromatic amines from azo dyes
Parameters (quantitative): o-toluidine (CAS 95-53-4) [µg/l], o-anisidine (CAS 90-04-0) [µg/l], o-dianisidine (CAS 119-90-4) [µg/l], 5-nitro-o-toluidine (CAS 99-55-8) [µg/l], o-aminoazotoluene (CAS 97-56-3) [µg/l], 4-chloroaniline (CAS 106-47-8) [µg/l], 3,3'-dichlorobenzidine (CAS 91-94-1) [µg/l], benzidine (CAS 92-87-5) [µg/l], o-tolidine (CAS 119-93-7) [µg/l], 2,4-diaminotoluene (CAS 95-80-7) [µg/l], 2,4-xylidine (CAS 95-68-1) [µg/l], 2,6-xylidine (CAS 87-62-7) [µg/l]
Article Number: 2011376
Description: This proficiency testing offers you the opportunity to test your analysis of certain parameters based on the currently published ZDHC Wastewater Guidelines. The analysis shall be carried out by reduction with sodium dithionite and subsequent determination by GC/MS and LC-MS/MS. Possible testing e.g. by ISO 14362-1, ISO 14362-3, US EPA 8270E
Category: chemical-physical testing Environmental analytics surface- and waste water (bath water)
Accreditation: This proficiency test is not included in the scope of the accreditation.
New proficiency testing
Refrigerated shipping November 2026 Add to cart
Synthetic waste water - aromatic amines from azo dyes
Article Number: 2011376
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.
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