Name Planned shipping method Start Date  
Tissue products - Grammage ISO 12625-6
Article Number: 2011032
Category: chemical-physical testing material testing paper and board
Accreditation: This proficiency test is not included in the scope of the accreditation.
Shipping at room temperature October 2026 Add to cart
Tissue products - Thickness ISO 12625-3
Article Number: 2011030
Category: physical mechanical testing material testing paper and board
Accreditation: This proficiency test is not included in the scope of the accreditation.
Shipping at room temperature October 2025 Add to cart
Tissue products - Thickness ISO 12625-3
Article Number: 2011030
October 2026 Add to cart
Tissue products - Water-absorption capacity ISO 12625-8
Article Number: 2011031
Category: chemical-physical testing material testing paper and board
Accreditation: This proficiency test is not included in the scope of the accreditation.
Shipping at room temperature October 2025 Add to cart
Tissue products - Water-absorption capacity ISO 12625-8
Article Number: 2011031
October 2026 Add to cart
Tomato juice
Parameters (quantitative): total ergosterol [mg/l]
Article Number: 2010154
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.
Frozen shipping November 2025 Add to cart
Tomato juice
Article Number: 2010154
November 2026 Add to cart
Tomato ketchup
Parameters (quantitative): pH value [-], total acid (pH 8.1) calculated as acetic acid [g/100 g], citric acid (anhydrous) [g/100 g], sodium chloride [g/100 g], glucose (anhydrous) [g/100 g], fructose (anhydrous) [g/100 g], soluble solids [g/100 g], dry matter [g/100 g], sorbic acid [g/kg], benzoic acid [g/kg], sucrose (anhydrous) [g/100 g], total sugar (anhydrous) 1 [g/100 g]
Article Number: 2010390
Description: With the three PT-schemes mayonnaise, tomato ketchup and mustard we offer a high quality assurance program for the most popular sauces and basic ingredients for many further foodstuff throughout the world. The requested parameters are the most important value-determining attributes like the egg content in mayonnaise as well as technologically relevant parameters like preservatives.
Category: chemical-physical testing food and feed fruit & vegetables products
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
Frozen shipping June 2025 Add to cart
Tomato ketchup
Article Number: 2010390
July 2026 Add to cart
Total carbon emission VDA 277 - PV 3341
Parameters (quantitative): Total carbon emission [μg C/g]
Article Number: 2010843
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 March 2026 Add to cart
Total count in milk 1
Parameters (quantitative): aerobic total count [cfu/g]
Article Number: 2010612
Description: Possible methods for participation, e.g.: ISO 4833, §35 LMBG 00.00-88
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
Unfortunately, no further booking is possible this year.
Frozen shipping May 2025
Total count in milk 1
Article Number: 2010612
May 2026 Add to cart
Total count recooling water
Parameters (quantitative): aerobic total count 36°C [cfu/ml], aerobic total count 22°C [cfu/ml]
Article Number: 2010962
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 July 2025 Add to cart
Total count recooling water
Article Number: 2010962
July 2026 Add to cart
Total sulfur content, Acid soluble sulfates EN 1744-1
Parameters (quantitative): Total sulfur content (S) [%], Sulphate content (SO3) [%]
Article Number: 2010583
Category: chemical-physical testing material testing aggregates
Accreditation: This proficiency test is not included in the scope of the accreditation.
Shipping at room temperature November 2025 Add to cart
Total sulfur content, Acid soluble sulfates EN 1744-1
Article Number: 2010583
November 2026 Add to cart
Total sulphate content EN 196-2
Parameters (quantitative): Sulphate content [%]
Article Number: 2010569
Category: chemical-physical testing material testing cement
Accreditation: This proficiency test is not included in the scope of the accreditation.
Shipping at room temperature November 2025 Add to cart
Total sulphate content EN 196-2
Article Number: 2010569
November 2026 Add to cart
Toys - colourfastness (DIN 53160)
Parameters (quantitative): colour fastness (artificial saliva) [-], colour fastness (artificial sweat) [-]
Article Number: 2010564
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 June 2025 Add to cart
Toys - colourfastness (DIN 53160)
Article Number: 2010564
June 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.