Name Planned shipping method Start Date  
Leather tensile test ISO 3376
Parameters (quantitative): Tensile strength [MPa], Elongation at break [%]
Article Number: 2010028
Category: physical mechanical testing material testing leather
Accreditation: This proficiency test is within the scope of the A2LA accreditation.
Shipping at room temperature April 2026 Add to cart
Legionella recooling water
Parameters (quantitative): Legionella spp. membrane filtration (after heat treatment) [cfu/100ml], Legionella spp. membrane filtration (with acid treatment) [cfu/100ml], Legionella spp. plating (original sample) [cfu/100ml], Legionella spp. plating (after heat treatment) [cfu/100ml], Legionella spp. plating (with acid treatment) [cfu/100ml]
Article Number: 2010958
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
Frozen shipping September 2025 Add to cart
Legionella recooling water
Article Number: 2010958
September 2026 Add to cart
Legionella spp. drinking water
Parameters (quantitative): Legionella spp. plating (original sample) [cfu/100ml], Legionella spp. membrane filtration (with acid treatment) [cfu/100ml]
Article Number: 2010114
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 September 2025 Add to cart
Legionella spp. drinking water
Article Number: 2010114
September 2026 Add to cart
Light fastness cycle 1 (mechanics) ISO 4892-2
Parameters (quantitative): Change in tensile strength [%], Change in elongation at break [%], Tensile strength (after exposure) [MPa], Elongation at break (after exposure) [%]
Article Number: 2010016
Category: chemical-physical testing material testing plastics (thermoplastics)
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
Shipping at room temperature April 2026 Add to cart
Light fastness ISO 105-B06
Parameters (quantitative): Evaluation by participant: Change in colour with greyscale and colour measurement ΔE*-value, Evaluation by DRRR: Change in colour ΔE*-value
Article Number: 2010799
Description: For this Proficiency test a return of the tested samples is required!
Category: chemical-physical testing material testing plastics (thermoplastics)
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
Shipping at room temperature April 2026 Add to cart
Light fastness Xenon Arc light (cycle 1) ASTM G155
Parameters (quantitative): Evaluation by participant: Change in colour with greyscale and colour measurement ΔE*-value, Evaluation by DRRR: Change in colour ΔE*-value
Article Number: 2010866
Description: For this Proficiency test a return of the tested samples is required!
Category: chemical-physical testing material testing plastics (thermoplastics)
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
Shipping at room temperature April 2026 Add to cart
Light fastness Xenon Arc light (cycle 1) ISO 4892-2
Parameters (quantitative): Evaluation by participant: Change in colour with greyscale and colour measurement ΔE*-value, Evaluation by DRRR: Change in colour ΔE*-value
Article Number: 2010867
Description: For this Proficiency test a return of the tested samples is required!
Category: chemical-physical testing material testing plastics (thermoplastics)
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
Shipping at room temperature April 2026 Add to cart
Limited flame spread ISO 15025
Parameters (qualitative): Classification index
Article Number: 2010102
Category: chemical-physical testing material testing protective clothing
Accreditation: This proficiency test is not included in the scope of the accreditation.
Unfortunately, no further booking is possible this year.
Shipping at room temperature May 2025
Limited flame spread ISO 15025
Parameters (qualitative): Classification index
Article Number: 2010102
May 2026 Add to cart
Linear density ISO 1973
Parameters (quantitative): fibre fineness [dtex]
Article Number: 2010975
Category: chemical-physical testing material testing textiles
Accreditation: This proficiency test is not included in the scope of the accreditation.
Shipping at room temperature May 2026 Add to cart
Liquid toys - preservatives (EN 71-17)
Parameters (quantitative): BIT (CAS 2634-33-5 ) [mg/kg], MI (CAS 2682-20-4) [mg/kg]
Article Number: 2010626
Description: Possible testing e.g. by EN 71-10, EN 71-11.
Category: chemical-physical testing consumer goods and packaging toys
Accreditation: This proficiency test is not included in the scope of the accreditation.
Refrigerated shipping December 2025 Add to cart
Liquid toys - preservatives (EN 71-17)
Article Number: 2010626
April 2026 Add to cart
Liquids from e-cigarettes (ISO 20714)
Parameters (quantitative): glycerol (CAS 56-81-5) [mg/g], propylene glycol (CAS 57-55-6) [mg/g], nicotine (CAS 54-11-5) [mg/g]
Article Number: 2010264
Description: Possible testing e.g. by EN ISO 20714
Category: chemical-physical testing consumer goods and packaging e-cigarettes
Accreditation: This proficiency test is not included in the scope of the accreditation.
Refrigerated shipping August 2025 Add to cart
Liquids from e-cigarettes (ISO 20714)
Article Number: 2010264
September 2026 Add to cart
Listeria cheese
Parameters (qualitative): L. monocytogenes qualitative
Article Number: 2010137
Description: Possible methods for participation, e.g.: ISO 11290-1, §64LFGB L00.00-32
Category: immunological, molecular biological and microbiological testing food and feed cheese
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
risk group 2
Frozen shipping August 2025 Add to cart
Listeria cheese
Parameters (qualitative): L. monocytogenes qualitative
Article Number: 2010137
August 2026 Add to cart
Listeria convenience products
Parameters (qualitative): L. monocytogenes qualitative
Article Number: 2010513
Description: Possible methods for participation, e.g.: ISO 11290-1, §64LFGB L00.00-32
Category: immunological, molecular biological and microbiological testing food and feed food matrices (other)
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
risk group 2
Frozen shipping August 2026 Add to cart
Listeria ground meat 1 qualitative
Parameters (qualitative): L. monocytogenes qualitative
Article Number: 2010151
Description: Possible methods for participation, e.g.: ISO 11290-1, §64LFGB L00.00-32
Category: immunological, molecular biological and microbiological testing food and feed meat products
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
risk group 2
Frozen shipping March 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.