Name Planned shipping method Start Date  
Wobble mass, slime - boron (EN 71-3)
Parameters (quantitative): boron (B) [mg/kg]
Article Number: 2010299
Description: Boron is one of the relevant parameters for the safety of toys. The migration of boron is examined according to EN 71-3. This PT enables the participants to present the comparability of their test results for the parameter boron in the matrix slime / wobble mass.
Category: chemical-physical testing consumer goods and packaging toys
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
Shipping at room temperature September 2026 Add to cart
Xenon Arc Light Aging PV 1303
Parameters (quantitative): Colour change ΔL*-value [-], Colour change Δa*-value [-], Colour change Δb*-value [-]
Article Number: 2010667
Description: This Proficiency Test is part of the certification program at Volkswagen, independently of this, participation is possible for every laboratory.
Category: chemical-physical testing material testing plastics (thermoplastics)
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 March 2025
Xenon Arc Light Aging PV 1303
Article Number: 2010667
March 2026 Add to cart
Yeasts cheese
Parameters (quantitative): yeasts [cfu/g], aerobic total count [cfu/g]
Article Number: 2010176
Description: Possible methods for participation, e.g.: ISO 21527-2, §35 LMBG 01.00-37, ISO 4833, §64 LFGB L00.00-88
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 1
Is currently underway. Can still be booked.
Frozen shipping May 2025 Add to cart
Yeasts cheese
Article Number: 2010176
May 2026 Add to cart
Yeasts dates
Parameters (quantitative): yeasts [cfu/g], aerobic total count [cfu/g]
Article Number: 2010563
Category: immunological, molecular biological and microbiological testing food and feed fruit & vegetables products
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
risk group 1
Frozen shipping October 2025 Add to cart
Yeasts dates
Article Number: 2010563
April 2026 Add to cart
Yeasts fruit juice concentrate
Parameters (quantitative): yeasts [cfu/g], aerobic total count [cfu/g]
Article Number: 2010592
Description: Quantitative analyse of different germs like yeasts, e.g. with IFU-Method 2, IFU-Method 3
Category: immunological, molecular biological and microbiological testing food and feed non-alcoholic beverages
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
risk group 1
Is currently underway. Can still be booked.
Frozen shipping April 2025 Add to cart
Yeasts fruit juice concentrate
Article Number: 2010592
April 2026 Add to cart
Yeasts fruit preparation
Parameters (qualitative): yeasts qualitative
Parameters (quantitative): yeasts [cfu/g]
Article Number: 2010043
Description: Possible methods for participation, e.g.: ISO 21527-2
Category: immunological, molecular biological and microbiological testing food and feed fruit & vegetables products
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
risk group 1
Frozen shipping August 2025 Add to cart
Yeasts fruit preparation
Parameters (qualitative): yeasts qualitative
Article Number: 2010043
August 2026 Add to cart
Yeasts in milk
Parameters (quantitative): yeasts [cfu/g], aerobic total count [cfu/g]
Article Number: 2010924
Category: immunological, molecular biological and microbiological testing food and feed milk and cream
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
risk group 1
Frozen shipping August 2025 Add to cart
Yeasts in milk
Article Number: 2010924
August 2026 Add to cart
Yeasts milk powder 1
Parameters (quantitative): yeasts [cfu/g], aerobic total count [cfu/g]
Article Number: 2010063
Description: Possible methods for participation, e.g.: ISO 21527-2, §35 LMBG 01.00-37, ISO 4833, §64 LFGB L00.00-88
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 1
Frozen shipping January 2026 Add to cart
Yeasts milk powder 2
Parameters (quantitative): yeasts [cfu/g], aerobic total count [cfu/g]
Article Number: 2010473
Description: Possible methods for participation, e.g.: ISO 21527-2, §35 LMBG 01.00-37, ISO 4833, §64 LFGB L00.00-88
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 1
Frozen shipping September 2025 Add to cart
Yeasts milk powder 2
Article Number: 2010473
September 2026 Add to cart
Yersinia enterocolitica seafood
Parameters (qualitative): Yersinia enterocolitica
Article Number: 2010509
Description: Possible methods for participation, e.g.: ISO 10273, §35 LMBG L00.00-90
Category: immunological, molecular biological and microbiological testing food and feed fish & seafood
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
risk group 2
Is currently underway. Can still be booked.
Frozen shipping May 2025 Add to cart
Yersinia enterocolitica seafood
Parameters (qualitative): Yersinia enterocolitica
Article Number: 2010509
May 2026 Add to cart
Yoghurt
Parameters (quantitative): fat [g/100g], dry matter [g/100g], protein (N x 6,38) [g/100g], pH value [-], total lactic acid [mg/100g]
Article Number: 2010017
Description: The anaylsis of the value assessing parameters in yoghurt is requested in this proficiency testing round
Category: chemical-physical testing food and feed milk products (other)
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
Refrigerated shipping November 2025 Add to cart
Yoghurt
Article Number: 2010017
November 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.