DLA - Proficiency Testing
Food, Cosmetic Products and Contact Materials since 2004

# # # The special ALLERGEN PT concept # # #
With incurred and spiked allergen recovery rates and z-scores.
For maximum information on the performance of your allergen analysis!

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Current information and Notes:

• The new PT program 2026 is available now!

Overview of our products:

Proficiency Testing Programs (PT) [more]

Single Proficiency Tests (SPT) [more]

Reference Material [more]

Accreditation [more]

Customer Feedback [PDF form]

Monthly up-to-date Shipment Information

Our PTs in February 2026: [register here]

• ptASW1 Allergen Swab Test I: Gluten (Wheat), Milk (β-Lactoglobulin, Casein), Peanut and Walnut (shipment 04/02/2026, registration deadline 28/01/2026)

• ptAL02 Allergens II: Gluten (Rye, Secale cereale), Lupin and Sesame in „gluten-free“ Tortilla Chips (baked) [Samples A + B] with "Spiking Level Sample“ [SP] (shipment 11/02/2026, registration deadline 04/02/2026)

• ptARW1 Allergen Rinsing Water Test I: Egg, Gluten (Wheat), Milk (Casein), Mustard and Peanut (shipment 18/02/2026, registration deadline 11/02/2026)

• ptSU01 Food Supplement: Vitamins B1, B2, B6, B12, Biotin, Vitamin C, Folic Acid , Niacin and Pantothenic Acid in Capsule Powder (enriched / high levels) (shipment 25/02/2026, registration deadline 18/02/2026)

Our PTs in January 2026: [register in webshop]

• ptAL01 Allergens I: Crustaceae, Egg and Egg-Lysozyme (as Preservative) and Pistachio in Spicy Cheddar-Cheese-Powder [Samples A + B] with "Spiking Level Sample“ [SP] (shipment 21/01/2026, registration deadline 16/01/2026)

* The minimum number of participants has not yet been reached. PTs <10 registered participants will be canceled or shifted, the participants will be informed at time of deadline.