Name Planned shipping method Start Date  
Thermophilic bacteria (55 °C) milk powder
Parameters (quantitative): thermophilic aerobic total count (55°C, vegetative) [cfu/g], thermoresistent spores of aerobic, thermophilic bacteria [cfu/g]
Article Number: 2010534
Description: Possible methods for participation, e.g.: ISO 4833, § 64 LFGB L 00.00 88-1 (55°C)
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
Thermophilic bacteria (55 °C) milk powder
Article Number: 2010534
September 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 July 2025 Add to cart
Tomato ketchup
Article Number: 2010390
July 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
Frozen shipping May 2025 Add to cart
Total count in milk 1
Article Number: 2010612
May 2026 Add to cart
Tropane alkaloids in flour
Parameters (quantitative): At least 3 different tropane alkaloids quantitatively, e.g. atropine, scopolamine, hyoscyamine
Article Number: 2010937
Category: chemical-physical testing food and feed cereals, cereal products
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
Frozen shipping December 2025 Add to cart
Tropane alkaloids in flour
Article Number: 2010937
December 2026 Add to cart
Tuna (triangle test)
Parameters (qualitative): organoleptic testing - triangle test
Article Number: 3010004
Category: sensory testing food and feed food matrices (other)
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
Shipping at room temperature June 2025 Add to cart
Tuna (triangle test)
Parameters (qualitative): organoleptic testing - triangle test
Article Number: 3010004
June 2026 Add to cart
UHT milk (lactose free)
Parameters (quantitative): lactose (monohydrate) - enzymatic [g/100g], lactose (monohydrate) - chromatographic [g/100g]
Article Number: 2010107
Description: Lactose free products need to have a lactose content < 0.1% lactose. To verify that one can determine lactose contents < 0.1 % is the scope of this proficiency testing.
Category: chemical-physical testing food and feed milk and cream
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
Frozen shipping May 2025 Add to cart
UHT milk (lactose free)
Article Number: 2010107
May 2026 Add to cart
UHT milk 1
Parameters (quantitative): fat [g/100g], dry matter [g/100g], protein (N x 6,38) [g/100g], lactose (monohydrate) [g/100g], freezing point [m°C], density [g/ml]
Article Number: 2010007
Description: The anaylsis of the value assessing parameters in UHTmilk is requested in this proficiency testing round
Category: chemical-physical testing food and feed milk and cream
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
Frozen shipping April 2025 Add to cart
UHT milk 1
Article Number: 2010007
April 2026 Add to cart
UHT milk 2
Parameters (quantitative): fat [g/100g], dry matter [g/100g], protein (N x 6,38) [g/100g], lactose (monohydrate) [g/100g], freezing point [m°C], lactulose [mg/100g], aw value [-]
Article Number: 2010366
Description: The anaylsis of the value assessing parameters in UHTmilk is requested in this proficiency testing round
Category: chemical-physical testing food and feed milk and cream
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
Frozen shipping September 2025 Add to cart
UHT milk 2
Article Number: 2010366
September 2026 Add to cart
UHT milk 3
Parameters (quantitative): fat [g/100g], dry matter [g/100g], protein (N x 6,38) [g/100g], lactose (monohydrate) [g/100g], freezing point [m°C], density [g/ml]
Article Number: 2010368
Description: The anaylsis of the value assessing parameters in UHTmilk is requested in this proficiency testing round
Category: chemical-physical testing food and feed milk and cream
Accreditation: This proficiency test is within the scope of the A2LA and the DAkkS accreditation.
Is currently underway. Can still be booked.
Frozen shipping November 2024 Add to cart
Vegan food identification (ISO 23662)
Parameters (qualitative): identification of vegan foods
Article Number: 2011164
Category: immunological, molecular biological and microbiological testing food and feed vegan and vegetarian substitutes
Accreditation: This proficiency test is not included in the scope of the accreditation.
Refrigerated shipping October 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.