Name Planned shipping method Start Date  
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.
Shipping at room temperature May 2025 Add to cart
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 2025 Add to cart
Linear density ISO 1973
Article Number: 2010975
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 September 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 2025 Add to cart
Listeria convenience products
Parameters (qualitative): L. monocytogenes qualitative
Article Number: 2010513
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
Listeria ground meat 2 qualitative
Parameters (qualitative): L. monocytogenes qualitative
Article Number: 2010505
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 August 2025 Add to cart
Listeria ground meat 2 qualitative
Parameters (qualitative): L. monocytogenes qualitative
Article Number: 2010505
August 2026 Add to cart
Listeria ground meat quantitative
Parameters (quantitative): L. monocytogenes [cfu/g], aerobic total count [cfu/g]
Article Number: 2010507
Description: Possible methods for participation, e.g.: ISO 11290-2, §64 LFGB L00.00-22
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 August 2025 Add to cart
Listeria ground meat quantitative
Article Number: 2010507
August 2026 Add to cart
Listeria milk powder 1
Parameters (qualitative): L. monocytogenes qualitative
Parameters (quantitative): L. monocytogenes [cfu/g], aerobic total count [cfu/g]
Article Number: 2010059
Description: Possible methods for participation, e.g.: ISO 11290-1, §64LFGB L00.00-32, ISO 11290-2; §64 LFGB L00.00-22
Category: immunological, molecular biological and microbiological testing food and feed milk powder
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
risk group 2
Frozen shipping January 2026 Add to cart
Listeria milk powder 2
Parameters (qualitative): L. monocytogenes qualitative
Parameters (quantitative): L. monocytogenes [cfu/g], aerobic total count [cfu/g]
Article Number: 2010153
Description: Possible methods for participation, e.g.: ISO 11290-1, §64LFGB L00.00-32, ISO 11290-2; §64 LFGB L00.00-22
Category: immunological, molecular biological and microbiological testing food and feed milk powder
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
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.