Name Planned shipping method Start Date  
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.
Shipping at room temperature March 2026 Add to cart
Xenon Arc Light Aging PV 1303
Article Number: 2010667
March 2027 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 2026 Add to cart
Yoghurt
Article Number: 2010017
November 2027 Add to cart
Yoghurt (ranking test, basic tastes)
Parameters (qualitative): organoleptic testing - basic taste (2 basic tastes)
Article Number: 3010037
Description: Possible methods for participation, e.g.: ISO 8587
Category: sensory 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 2026 Add to cart
Yoghurt (ranking test, basic tastes)
Parameters (qualitative): organoleptic testing - basic taste (2 basic tastes)
Article Number: 3010037
November 2027 Add to cart
Yoghurt (ranking test, flavours)
Parameters (qualitative): organoleptic testing - flavour (2 flavours)
Article Number: 3010041
Description: Possible methods for participation, e.g.: ISO 8587
Category: sensory 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 2026 Add to cart
Yoghurt (ranking test, flavours)
Parameters (qualitative): organoleptic testing - flavour (2 flavours)
Article Number: 3010041
November 2027 Add to cart
Yoghurt (triangle test, basic taste)
Parameters (qualitative): organoleptic testing - triangle test basic taste
Article Number: 3010039
Description: Possible methods for participation, e.g.: ISO 4120
Category: sensory 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 2026 Add to cart
Yoghurt (triangle test, basic taste)
Parameters (qualitative): organoleptic testing - triangle test basic taste
Article Number: 3010039
November 2027 Add to cart
Yoghurt (triangle test, flavour)
Parameters (qualitative): organoleptic testing - triangle test flavour
Article Number: 3010043
Description: Possible methods for participation, e.g.: ISO 4120
Category: sensory 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 2026 Add to cart
Yoghurt (triangle test, flavour)
Parameters (qualitative): organoleptic testing - triangle test flavour
Article Number: 3010043
November 2027 Add to cart
Zahn-Wellens, EMPA test (ISO 9888, OECD 302B)
Parameters (quantitative): Final degree of degradation [%], Biodegradation t = 3 h [%], Biodegradation t = 1 d [%], Biodegradation t = 3 d [%], Biodegradation t = 7 d [%], Biodegradation t = 10 d [%], Biodegradation t = 14 d [%], Biodegradation t = 17 d [%], Biodegradation t = 23 d [%], Biodegradation t = 28 d [%]
Article Number: 2011137
Description: The samples should be tested for biodegradability at 20-25°C over a period of 28 days. The DOC value of the samples must be determined in a preliminary test.
Category: immunological, molecular biological and microbiological testing Environmental analytics biodegradation
Accreditation: This proficiency test is not included in the scope of the accreditation.
Shipping at room temperature September 2026 Add to cart
Zahn-Wellens, EMPA test (ISO 9888, OECD 302B)
Article Number: 2011137
September 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.