Name Planned shipping method Start Date  
Coefficient of linear thermal expansion (CTLE) ISO 11359
Parameters (quantitative): Mean CLTE (25-100°C) [10-6 1/k], Mean CLTE (25-80°C) [10-6 1/k], Differential CLTE (100°C) [10-6 1/k], Differential CLTE (80°C) [10-6 1/k]
Article Number: 2010758
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
Coefficient of linear thermal expansion (CTLE) ISO 11359
Article Number: 2010758
April 2027 Add to cart
Coefficients of friction ISO 8295
Parameters (quantitative): Static friction [-], Kinetic friction [-]
Article Number: 2010780
Category: physical mechanical testing material testing films
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
Shipping at room temperature March 2026 Add to cart
Coefficients of friction ISO 8295
Article Number: 2010780
March 2027 Add to cart
Coffee
Parameters (quantitative): water content [g/100 g], ash [g/100 g], pH value [-], acid content (acidity) at pH 6,00 [mmol/kg], acid content (acidity) at pH 7,00 [mmol/kg], acid content (acidity) at pH 8,00 [mmol/kg], water soluble extract [g/100 g], caffeine [g/100 g], acrylamide (CAS 79-06-1) [µg/kg], chlorogenic acid 1 [g/100 g]
Article Number: 2010392
Category: chemical-physical testing food and feed non-alcoholic beverages
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
Is currently underway. Can still be booked.
Frozen shipping October 2025 Add to cart
Coffee
Article Number: 2010392
October 2026 Add to cart
Coffee
Article Number: 2010392
October 2027 Add to cart
Coffee infusion (triangle test, flavour taint)
Parameters (qualitative): organoleptic testing - triangle test flavour
Article Number: 3010016
Category: sensory testing food and feed non-alcoholic beverages
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
The proficiency test price includes one test person; an additional sample set must be booked for each additional test person.
Refrigerated shipping July 2026 Add to cart
Coffee infusion (triangle test, flavour taint)
Parameters (qualitative): organoleptic testing - triangle test flavour
Article Number: 3010016
July 2027 Add to cart
Cold testing - Test Ae IEC 60068-2-1
Article Number: 2011425
Category: chemical-physical testing material testing environmental testing
Accreditation: This proficiency test is not included in the scope of the accreditation.
New proficiency testing
Shipping at room temperature February 2026 Add to cart
Cold testing - Test Ae IEC 60068-2-1
Article Number: 2011425
February 2027 Add to cart
Cold testing - Test Ae IEC 60068-2-1 (round 2)
Article Number: 2011426
Category: chemical-physical testing material testing environmental testing
Accreditation: This proficiency test is not included in the scope of the accreditation.
New proficiency testing
Shipping at room temperature October 2026 Add to cart
Cold testing - Test Ae IEC 60068-2-1 (round 2)
Article Number: 2011426
October 2027 Add to cart
Coliforme bacteria ground meat
Parameters (quantitative): Coliforms [cfu/g], aerobic total count [cfu/g]
Article Number: 2010936
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 1
Frozen shipping November 2025 Add to cart
Coliforme bacteria mineral water and table water
Parameters (qualitative): Coliforme qualitative
Article Number: 2010134
Category: immunological, molecular biological and microbiological testing food and feed mineral water and table water
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 September 2025 Add to cart
Color measurement (background material) ISO 20471 (5.1)
Parameters (quantitative): chromaticy coordinate x [-], chromaticy coordinate y [-], luminance factor β [-]
Article Number: 2010106
Category: chemical-physical testing material testing protective clothing
Accreditation: This proficiency test is within the scope of the A2LA accreditation.
Shipping at room temperature May 2026 Add to cart
Color measurement (background material) ISO 20471 (5.1)
Article Number: 2010106
May 2027 Add to cart
Colour check (triangle test)
Parameters (qualitative): organoleptic testing - triangle test
Article Number: 3010007
Category: sensory testing food and feed food matrices (other)
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
The proficiency test price includes one test person; an additional sample set must be booked for each additional test person.
Shipping at room temperature April 2026 Add to cart
Colour check (triangle test)
Parameters (qualitative): organoleptic testing - triangle test
Article Number: 3010007
April 2027 Add to cart
Colour fastness of dyed paper (EN 646)
Parameters (quantitative): colour fastness (dist. Water) [-], colour fastness (acetic acid 3%) [-], colour fastness (olive oil) [-], colour fastness (alkali salt solution) [-]
Article Number: 2010646
Category: chemical-physical testing consumer goods and packaging paper and board
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
Shipping at room temperature May 2026 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.