Proficiency Tests 2027

DLA - PT Program & Registration 2027 [get to 2026] or as [PDF-Form]

Below you will find our program of proficiency tests for 2027. You can register online via our webshop at my DLA | participant's portal (https://my.dla-pt.com/) or use the [PDF-Form] and send it by email.

Get a 5 % discount per ≥ 10 registrations until January 31, 2027 for PTs placed in a collective order*
* Once the conditions for the discount are reached, 5% will also be applied on all further registrations during 2027


Order of PTs & Registration

Art.-No.
(Lot-No.)

Proficiency Test

Information
available 5 weeks
before shipment (terms) and upon shipment (letter)

Shipping Date

Status
(2026-09-29)

Price



1. Allergens - Elicitors of Allergies and Intolerance Reactions



Evaluation Guides
(see bottom of page)



Allergen-PTs (qualitative / quantitative with z-scores and recovery rates) - Accredited Programs -

The PROCESS of PT rounds ptAL01 - 09 + ptAL12 - 13 (with 3 Samples A+B and RS): 

Two Samples (25g each) with the Allergens in a Food Matrix (Samples A + B), as chocolate, pastry, ice cream or boiled sausage are provided for qualitative and quantitative determination. One of these samples contains the spiked or incurred allergen(s). Incurred allergens were added at the same time as the other food matrix ingredients and processed in the matrix (e.g. baked or cooked).
The third sample, called "Recovery Reference Sample" (Sample RS) (15g) (formerly "Spiking Level Sample" Sample SP) contains the same allergens in similar amounts in the matrix of rice flour (formerly potato powder), a simple matrix with a minimum of interfering compounds and without further processing. 

The evaluation of results will be qualitative and quantitative. Quantitative statistics with z-scores will be done with the target values from the consensus values of participants' results (≥ 5 results) and from the known gravimetrically spiked values. 

Whenever possible as per statistical verification, a collective consensus value is calculated from all participants' results, regardless of the analytical test kit used (joint evaluation) and additionally individual consensus values are applied for the results of each ELISA kit brand in separate evaluations.

Recovery rates and recovery z-scores are calculated for every individual quantitative result of the "positive" samples A or B and the "Recovery Reference Sample" sample RS (formerly known as "Spiking Level Samples"), regardless which method was applied. By comparing the recovery rates in tabular form, the influence of the food matrix and processing on the performance of the analytical method can be directly seen.

Qualitative and optionally quantitative results can be submitted. Any suitable method can be applied for analysis, in particular ELISA, LFD, PCR and LC-MS.





ptAL01
(Lot 27)

Allergens I: Egg, Milk (Casein), Pistachio and Soya in Boiled Sausage [Samples A + B] with "Recovery Reference Sample“ [RS] (2 different Food Matrix Samples and 1 Simple Matrix Sample)
[ACCREDITED]

[incurred]
(A or B)
+ spiked (RS)

Terms & Details
Information letter

January
2027-01-27

< Registration >
in Progress
finished

405 € (cooled)


ptAL02
(Lot 27)

Allergens II: Cashew, Gluten (Wheat) and Hazelnut in „gluten-free“ Oat Biscuits (baked) [Samples A + B] with "Recovery Reference Sample“ [RS] (2 different Food Matrix Samples and 1 Simple Matrix Sample) 
[ACCREDITED]

[incurred]
(A or B)
+ spiked (RS)

Terms & Details
Information letter

February
2027-02-24

< Registration >
in Progress
finished

375 €


ptAL03
(Lot 27)

Allergens III: Gluten (Khorasan Wheat, Triticum turanicum), Milk (β-Lactoglobulin, Casein) and Soya (Soya Isolate) in Infant Food (Cereal Pap Powder) [Samples A + B] with "Recovery Reference Sample“ [RS] (2 different Food Matrix Samples and 1 Simple Matrix Sample)
[ACCREDITED]

spiked
(A or B)
+ spiked (RS)

Terms & Details
Information letter

March
2027-03-24

< Registration >
in Progress
finished

375 €


ptAL04
(Lot 27)

Allergens IV: Celery, Mustard, Pine Nut and Sesame in Instant Soup Powder [Samples A + B] with "Recovery Reference Sample“ [RS] (2 different Food Matrix Samples and 1 Simple Matrix Sample)
[ACCREDITED]

spiked
(A or B)
+ spiked (RS)

Terms & Details
Information letter

April
2027-04-21

< Registration >
in Progress
finished

405 €


ptAL05
(Lot 27)

Allergens V: Almond, Egg, Macadamia and Soya in Cocoa Biscuit (baked) [Samples A + B] with "Recovery Reference Sample“ [RS] (2 different Food Matrix Samples and 1 Simple Matrix Sample)
[ACCREDITED]

[incurred]
(A or B)
+ spiked (RS)

Terms & Details
Information letter

August
2027-08-25

< Registration >
in Progress
finished

405 €


ptAL06
(Lot 27)

Allergens VI: Milk, Peanut and Pecan in Chocolate [Samples A + B] with "Recovery Reference Sample“ [RS] (2 different Food Matrix Samples and 1 Simple Matrix Sample)
[ACCREDITED]

[incurred]
(A or B)
+ spiked (RS)

Terms & Details
Information letter

September
2027-09-29

< Registration >
in Progress
finished

375 € (cooled)


ptAL07
(Lot 27)

Allergens VII: Gluten (Wheat), Hazelnut, Macadamia and Pistachio in Ice Cream [Samples A + B] with "Recovery Reference Sample“ [RS] (2 different Food Matrix Samples and 1 Simple Matrix Sample)
[ACCREDITED]

[incurred]
(A or B)
+ spiked (RS)

Terms & Details
Information letter

October
2027-10-13
(4 weeks analysis time)

< Registration >
in Progress
finished

405 € cooled


ptAL08
(Lot 27)

Allergens VIII: Crustaceae, Gluten (Durum Wheat, Triticum durum), Lupin and Molluscs in Rice Noodle Soup Powder [Samples A + B] with "Recovery Reference Sample“ [RS] (2 different Food Matrix Samples and 1 Simple Matrix Sample)
[ACCREDITED]

spiked
(A or B)
+ spiked (RS)

Terms & Details
Information letter

November
2027-11-10

< Registration >
in Progress
finished

405 €


ptAL09
(Lot 27)

Allergens IX: Celery, Fish and Peanut in Barbecue Spice Mixture (with Onion, Garlic and Paprika Powder contaminated with Peanut Shells) [Samples A + B] with "Recovery Reference Sample“ [RS] (2 different Food Matrix Samples and 1 Simple Matrix Sample)
[ACCREDITED]

spiked
(A or B)
+ spiked (RS)

Terms & Details
Information letter

December
2027-12-01
(4 weeks analysis time)

< Registration >
in Progress
finished

375 € cooled


ptAL10
(Lot 27)

Allergens X: Gluten (Barley Malt, Hordeum vulgare) in „gluten-free“ Beer [Samples A + B] (2 different Samples)
[ACCREDITED]

[incurred]
(A or B)

Terms & Details
Information letter

April
2027-04-14
(4 weeks analysis time)

< Registration >
in Progress
finished

360 € cooled


ptAL11
(Lot 27)

Allergens XI: Gluten (Rye, Secale cereale), Mustard and Soya in Oat Flour (contaminated with Rape Seed) and in Rice Flour [Samples A + B + C + D] (4 different Samples)
[ACCREDITED]

spiked
(A or B)
+ spiked
(C or D)

Terms & Details
Information letter

June
2027-06-09

< Registration >
in Progress
finished

415 €


ptAL12
(Lot 27)

Allergens XII: Brazil Nuts, Buckwheat, Coconut and Walnut in Cereal Muesli [Samples A + B] with "Recovery Reference Sample“ [RS] (2 different Food Matrix Samples and 1 Simple Matrix Sample)
[ACCREDITED]

spiked
(A or B)
+ spiked (RS)

Terms & Details
Information letter

July
2027-07-07

< Registration >
in Progress
finished

405 €


ptAL13
(Lot 27)

Allergens XIII: Gluten (Wheat), Milk (Caseinate), Insects and Soya (Soya Isolate) in “gluten-free“ Vegan Protein Shake Powder [Samples A + B] with "Recovery Reference Sample“ [RS] (2 different Food Matrix Samples and 1 Simple Matrix Sample) 
[ACCREDITED]

spiked
(A or B)
+ spiked (RS)

Terms & Details
Information letter

June
2027-06-30

< Registration >
in Progress
finished

405 €


Allergen-Screening (qualitative and semi-quantitative) 

ptALS1-3: 4 Samples (20g each) with Allergens in a simple Food Matrix (rice flour) are provided. All parameters are contained in 2 of 4 samples providing 2/3 and 1/6 of the new Action Levels (VITAL 4.0, 2024), respectively. The “action level” in mg/kg is calculated from the allergen protein reference dose per 100 g food portion. The positive detection of the 2/3 action level ensures that the action level can be detected safely even when the measurement uncertainty of the applied method is about 50%. While the 1/6 action level can proof the method performance at lower levels close to the LOQ.
The evaluation of results is strictly qualitative with indication of the obtained agreements with the consensus values of the participants and the spiking of samples. All gravimetrically spiked quantitative levels are given in the reports which enables a semi-quantitative estimation of results..
For analysis ELISA (+ Lateral Flow), PCR and LC/MS can be applied.





ptALS1
(Lot 27)

Allergen-Screening I - 4 Samples qualitative: Almond, Brazil Nuts, Cashew, Coconut, Hazelnut, Macadamia, Pecan, Pine Nuts, Pistachio, Walnut (gravimetric 2/3 and 1/6 values of new “Action Levels“ for all allergens included)
[ACCREDITED]

spiked

Terms & Details
Information letter

March
2027-03-10

< Registration >
in Progress
finished

415 €1
475 €2


ptALS2
(Lot 27)

Allergen-Screening II - 4 Samples qualitative: Crustaceae, Egg, Fish, Milk, Molluscs, Mustard (yellow/white, brown and black), Soya (gravimetric 2/3 and 1/6 values of new “Action Levels“ for all allergens included)
[ACCREDITED]

spiked

Terms & Details
Information letter

May
2027-05-26

< Registration >
in Progress
finished

415 €1
475 €2


ptALS3
(Lot 27)

Allergen-Screening III - 4 Samples qualitative: Buckwheat, Celery (Leaves / Stem, Root and Seed), Cereals containing Gluten (Wheat or Rye and Barley or Oat), Lupin, Peanut, Sesame (white and black) (gravimetric 2/3 and 1/6 values of new “Action Levels“ for all allergens included)
[ACCREDITED]

spiked

Terms & Details
Information letter

October
2027-10-27

< Registration >
in Progress
finished

415 €1
475 €2

prices 1) participation with one method, 2) participation with 2 or 3 methods

Action Level Matrix- ALM Verification

ptALM6: A kind of Calibration Set of 6 Samples (20g each) of an Allergen in a Specific Matrix is provided for qualitative determination including  a "Blank Sample" (Matrix). The allergen levels of the calibration row range from 1/10 to at least twice the Action Level 1 (VITAL concept 3.0) and judgment value of the German Commission ALTS/ALS. Valuation of PT-results is qualitative in Scores of 1-5 (Score 3 = Action Level successfully identified). Quantitative results will be reported for information. The analytical methods are optional.

 


ptALM6
(Lot 27)

ALM-Verification Hazelnut: 6 Samples containing roasted Hazelnut in Chocolate-Matrix (levels: 0,0 / 0,50 / 2,5 / 5,0 / 12,5 / 25 mg/kg), Allergenic Material: mixture of 10 Hazelnut Products (Europe) qualitative evaluation + quantitative evaluation of the action level (5 different samples + blank 20 g each)

[incurred]

Terms & Details
Information letter

September
2027-09-15

< Registration >
in Progress
finished

 445 € (cooled)


prices 1) participation with one method, 2) participation with 2 or 3 methods



Other Elicitors of Allergies and Intolerance Reactions






ptAI01
(Lot 27)

Lactose + Fructose in "lactose-free" (< 100 mg/100 g) and „lactose-reduced“ (> 100 mg/100 g and ≤ 1000 mg/100 g) Cereal Pap Powder for Children [Samples A + B] and "Recovery Reference Sample“ [RS] (2 different food matrix samples of 25 g each, as well as a Recovery Reference Sample 25 g)

spiked
(A or B)
+ spiked (RS)

Terms & Details
Information letter

June
2027-06-02

< Registration >
in Progress
finished

320 €


Allergen Swab Test (qualitative) - Wipe Test for Surfaces

ptASW1-3: There are 2 samples of a Test Surface with Allergens offered for the detection of each allergen by means of a wipe test (swab test). The allergens to be tested were attached to one test surface, while the other test surface is "negative". The evaluation is exclusively qualitative (positive/negative) with indication of the obtained agreement with the consensus values of the participants and the spiking of the surfaces. As an analytical test method, the Lateral-Flow-Test is particularly suitable. ELISA, PCR and LC/MS can also be used. Multiple sets of results can be submitted for different methods.
Please note: When different (extraction) methods are applied, further sample sets are required. Double sample material can be ordered.





ptASW1
(Lot 27)

Allergen Swab Test I: Gluten (Wheat), Milk (β-Lactoglobulin, Casein), Mustard and Peanut (2 Test Surfaces per Allergen, qualitative)
[ACCREDITED]

spiked

Terms & Details
Information letter

January
2027-01-13

< Registration >
in Progress
finished

390 €


ptASW2
(Lot 27)

Allergen Swab Test II: Crustaceae, Egg, Fish and Soya
(2 Test Surfaces per Allergen, qualitative) 
[ACCREDITED]

spiked

Terms & Details
Information letter

June
2027-06-16

< Registration >
in Progress
finished

390 €


ptASW3
(Lot 27)

Allergen Swab Test III: Cashew, Celery, Hazelnut and Sesame
(2 Test Surfaces per Allergen, qualitative)
[ACCREDITED]

spiked

Terms & Details
Information letter

September
2027-09-01

< Registration >
in Progress
finished

390 €


Allergen Rinsing Water Test (qualitative + quantitative)

ptARW: 3 washing solutions with different allergen contents are offered.




ptARW1
(Lot 27)

Allergen Rinsing Water Test I: Egg, Gluten (Wheat), Milk (Casein), Mustard and Peanut (3 test solutions with decreasing concentrations, qualitative + quantitative) 
[ACCREDITED]

spiked

Terms & Details
Information letter

February
2027-02-03
(4 weeks analysis time)

< Registration >
in Progress
finished

415 €cooled


Single Proficiency Test (SPT) Program of all DLA Allergen Response PTs and Action Level PTs
These SPTs are especially suitable for method validation and verification!

By means of a Single Proficiency Test it is possible to participate individually and flexibly at any time, even outside the regular PT program, in a proficiency test format for a single participant laboratory. The target values (assigned values) of the SPT test material are determined on the basis of known reference values from previous PTs / inter laboratory tests, contents of spiked analytes (reference standard) or by reference laboratories.





Allergen-Response SPT of processed allergenic Ingredients

sptALR1-10: 5 Samples (20g each) of a differently processed Allergen are provided for qualitative and quantitative determination, a simple Carrier Matrix as well as a „Blank Sample“ (Carrier Matrix). The individual processed ingredients of the samples are mixed gravimetrically by DLA each from 4 industrially manufactured products. The analytical methods are optional.





sptALR1
(Lot 27)

Response SPT Almond: Processed samples Almond (not roasted), Almond (roasted), Marzipan, Almond Spread and Almond Milk in potato powder matrix (levels: 25 - 150 mg/kg)

Terms & Details
Information letter

start on demand

< Registration >

445 €


sptALR2
(Lot 27)

Response SPT Celery: Processed samples Celery Seeds (ground), Celery Leaves (ground), Celery Root (ground), Celery Seed Vegetarian Spread (heated) and in Spice Crackers (baked) in potato powder matrix (levels: 25 - 150 mg/kg)

Terms & Details
Information letter

start on demand

< Registration >

445 €


sptALR3
(Lot 27)

Response SPT Egg: Processed samples Liquid Egg (pasteurized), Egg (boiled), Whole Egg Powder, Egg Pasta and Egg Pastry in potato powder matrix (levels: 25 - 150 mg/kg)

Terms & Details
Information letter

start on demand

< Registration >

445 €


sptALR4
(Lot 27)

Response SPT Gluten: Processed samples Wheat Flour, Bread, Noodles (Durum Wheat), Bulgur (pre-cooked Wheat) and Seitan (Gluten Protein) in potato powder matrix (levels: 25 – 150 mg/kg)

Terms & Details
Information letter

start on demand

< Registration >

445 €


sptALR5
(Lot 27)

Response SPT Hazelnut: Processed samples Hazelnut (not roasted), Nut Butter (roasted), Nut Spread with Cocoa, Nut Nougat and Nut Crocant in potato powder matrix (levels: 25 - 150 mg/kg)

Terms & Details
Information letter

start on demand

< Registration >

445 €


sptALR6
(Lot 27)

Response SPT Milk: Processed samples Milk, Whey, Yoghurt, Curd Cheese and Cream in potato powder matrix (levels: 25 - 150 mg/kg)

Terms & Details
Information letter

start on demand

< Registration >

445 €


sptALR7
(Lot 27)

Response SPT Mustard: Processed samples Mustard flour (Sinapis alba), table mustard (Sinapis alba), Dijon mustard (Brassica spp), vegetarian spread (heated) and spice cracker (baked) in potato powder matrix (levels: 25 - 150 mg/kg)

Terms & Details
Information letter

start on demand

< Registration >

445 €


sptALR8
(Lot 27)

Response SPT Peanut: Processed samples Peanut (unroasted), Peanut (roasted), Peanut Butter, Peanut Paste and Extrudate (Peanut-Flips) in potato powder matrix (levels: 25 - 150 mg/kg)

Terms & Details
Information letter

start on demand

< Registration >

445 €


sptALR9
(Lot 27)

Response SPT Sesame: Processed samples White Sesame (ground), Black Sesame (ground), Sesame Paste (Tahini), Vegetarian Spread (heated) and Spice Cracker (baked) in potato powder matrix (levels: 25 - 150 mg/kg)

Terms & Details
Information letter

start on demand

< Registration >

445 €


sptALR10
(Lot 27)

Response SPT Soya: Processed samples Soya Flour, Soya Isolate, Soya Granulate, Soya Milk and Tofu in potato powder matrix (levels: 50 - 150 mg/kg)

Terms & Details
Information letter

start on demand

< Registration >

445 €


Action Level Matrix- ALM Verification

sptALM1-11: A kind of Calibration Set of 5 Samples (20g each) of an Allergen in a Specific Matrix is provided for qualitative determination as well as a „Blank Sample“ (Matrix). The allergen levels of the calibration row range from 1/10 to at least twice the Action Level 1 (VITAL concept 3.0) and judgment value of the German Commission ALTS/ALS. Valuation of PT-results is qualitative in Scores of 1-5 (Score 3 = Action Level successfully identified). Quantitative results will be reported for information. The analytical methods are optional.





sptALM1
(Lot 27)

ALM-Verification Almond: 6 Samples containing Almonds in Cookies Matrix (baked) (levels: 0,0 / 2,0 / 10 / 20 / 50 / 100 mg/kg), Allergenic Material: mixture of 18 Almond Products (USA, Europe, Australia, Middle East)

Terms & Details
Information letter

start on demand

< Registration >

445 €


sptALM2
(Lot 27)

ALM-Verification Celery: 6 Samples containing Celery Seed in Spice Mixture (powder) (levels: 0,0 / 1,0 / 5 / 10 / 25 / 50mg/kg), Allergenic Material: mixture of at least 4 Sources of Celery

Terms & Details
Information letter

start on demand

< Registration >

445 €


sptALM3
(Lot 27)

ALM-Verification Egg: 6 Samples containing Whole Egg Powder in Cookies Matrix (baked) (levels: 0,0 / 0,1 / 0,5 / 1,0 / 5,0 / 15 mg/kg), Allergenic Material: mixture of 6 Egg Products (Europe)

Terms & Details
Information letter

start on demand

< Registration >

445 €


sptALM4
(Lot 27)

ALM-Verification Gluten: 6 Samples containing Wheat Flour in ”gluten-free” Cocoa Biscuits (baked) (levels: 0,0 / 2,0 / 10 / 20 / 50 / 100 mg/kg), Allergenic Material: mixture of 21 Wheat Flours (Europe, Asia, USA)

Terms & Details
Information letter

start on demand

< Registration >

445 €


sptALM5
(Lot 27)

ALM-Verification Gluten: 6 Samples containing Wheat Flour in Maize-Chips-Matrix (baked) (levels: 0,0 / 2,0 / 10 / 20 / 50 / 100 mg/kg), Allergenic Material: mixture of 21 Wheat Flours (Europe, Asia, USA)

Terms & Details
Information letter

start on demand

< Registration >

445 €


sptALM6
(Lot 27)

ALM-Verification Hazelnut: 6 Samples containing roasted Hazelnut in Chocolate-Matrix (levels: 0,0 / 0,50 / 2,5 / 5,0 / 12,5 / 25 mg/kg), Allergenic Material: mixture of 10 Hazelnut Products (Europe)

Terms & Details
Information letter

start on demand

< Registration >

445 €


sptALM7
(Lot 27)

ALM-Verification Milk: 6 Samples containing Milk Powder in Cereal Pap-Matrix (powder) (levels: 0,0 / 0,25 / 1,25 / 2,5 / 12,5 / 25 mg/kg), Allergenic Material: mixture of 9 Milk Products (Europe, USA)

Terms & Details
Information letter

start on demand

< Registration >

445 €


sptALM8
(Lot 27)

ALM-Verification Mustard: 6 Samples containing Mustard (Sinapis alba) in Spice Mixture (levels: 0,0 / 0,50 / 2,5 / 5,0 / 12,5 / 25 mg/kg), Allergenic Material: mixture of 9 Mustard Seed Products (Europe, Asia)

Terms & Details
Information letter

start on demand

< Registration >

445 €


sptALM10
(Lot 27)

ALM-Verification Peanut: 6 Samples containing roasted Peanuts in Cookie-Matrix (baked) (levels: 0,0 / 0,50 / 2,5 / 5,0 / 12,5 / 25 mg/kg), Allergenic Material: mixture of 18 Peanut Products (USA, Asia, Africa, South America)

Terms & Details
Information letter

start on demand

< Registration >

445 €


sptALM11
(Lot 27)

ALM-Verification Sesame: 6 Samples containing White Sesame in Spice Cracker Matrix (baked) (levels: 0,0 / 1,0 / 5,0 / 10 / 25 / 50 mg/kg), Allergenic Material: mixture of 10 Sesame Seed Products (Asia, South America, Africa)

Terms & Details
Information letter

start on demand

< Registration >

445 €



2. Mycotoxins






All Mycotoxin-PTs (qualitative + quantitative) - Accredited Programs -

► 2 different samples with "positive" or "negative" contents
► qualitative evaluation: agreement pos/neg. in relation to EU Maximum Levels (Regulation EU/2023/915)
► quantitative evaluation by z-scores





ptMYS1
(Lot 27)

Mycotoxin-Screening: Aflatoxins, Deoxynivalenol, Fumonisins, Ochratoxin A, T-2/HT-2 Toxins and Sum of T-2/HT-2 Toxins and Zearalenone in Breakfast Cereals (2 different samples 100 g or 200 g each)
[ACCREDITED]

NEW Parameter:T-2/HT-2 Toxins

natural contaminated / spiked

Terms & Details
Information letter

May
2027-05-12

< Registration >
in Progress
finished

400 €1
495 €2



1) Determination of up to 3 Parameters, 2) Determination of up to 6 Parameters







3. Potentially toxic Compounds, Contaminants and Residues





ptTX01
(Lot 27)

Coumarin in Cinnamon Breakfast Cereals (2 samples 30 g each)

natural contaminated / spiked

Terms & Details
Information letter

November
2027-11-24

< Registration >
in Progress
finished

335 €


ptRE04
(Lot27)

Hydrogen Cyanide / Hydrocyanic Acid in Almond Flour

(2 samples 20 g each)

natural contaminated

Terms & Details
Information letter

November
 2027-11-03

< Registration >
in Progress
finished

335 €cooled

Single Proficiency Test (SPT) Program

By means of a Single Proficiency Test it is possible to participate individually and flexibly at any time, even outside the regular PT program, in a proficiency test format for a single participant laboratory. The target values (assigned values) of the SPT test material are determined on the basis of known reference values from previous PTs / inter laboratory tests, contents of spiked analytes (reference standard) or by reference laboratories.


sptRE01
(Lot 27)

Sum of Ethylene oxide / 2-Chloroethanol  (expressed as ethylene oxide) in Sesame 
(2 samples 30 g each)

natural contaminated

Terms & Details
Information letter

start on demand

< Registration >

420 €


sptRE02
(Lot 27)

Sum of Ethylene oxide / 2-Chloroethanol  (expressed as ethylene oxide) in Spice Mixture 
(2 samples 30 g each)

natural contaminated

Terms & Details
Information letter

start on demand

< Registration >

420 €



4. Genitically modified Organisms





GMO-Screening I and II (qualitative) 

ptGMS1 + ptGMS2: 4 samples (10g each) with GMO-screening sequences / “markers” (e.g. promoter- and terminator sequences, herbicide or insect resistance genes) and GMO events in different matrices (flour and semolina mixtures) are provided.
All mentioned parameters are contained in at least one of the four samples.
The evaluation of results is strictly qualitative with indication of the obtained agreements with the consensus values of the participants and the spiking of samples. All gravimetrically spiked quantitative levels are given in the reports for further information.
For analysis PCR, Real Time PCR, ELISA (+ Lateral Flow) can be applied.
Multiple sets of results can be submitted for different methods.


ptGMS1
(Lot 27)

GMO-Screening I (qualitative): 4 Samples with positive and negative amounts of AgroBorder I and/or II, p35S, PAT, p35S-PAT, t-NOS, p-FMV, CTP2:CP4 EPSPS / Maize + GMO-Maize (MON95379 and MON87419) and Soya + GMO-Soya (RR GTS 40-3-2, RR2 MON89788 and A2704-12) in different matrices (Flour and Semolina mixtures) (4 different samples 10 g each)
NEW Parameter: MON95379 & MON87419

natural contaminated / spiked

Terms & Details
Information letter

April
2027-04-28

< Registration >
in Progress
finished

410 €


ptGMS2
(Lot 27)

GMO-Screening II (qualitative): 4 Samples with positive and negative amounts of AgroBorder I and/or II, p-FMV, p-NOS, t-NOS, CTP2:CP4 EPSPS, nptII, synPAT, p-CsVMV-pat, PAT / Potato + GMO-Potato Amflora (EH92-527-1), Rape Seed + GMO-Rape Seed / Canola (MON94100-2), Sugar Beet + GMO-Sugar Beet (H7-1) and Cotton + GMO-Cotton (DAS-81910-7) in different matrices (Flour and Semolina mixtures) (4 different samples 10 g each)
NEW Parameter: MON94100-2

natural contaminated / spiked

Terms & Details
Information letter

September
2027-09-22

< Registration >
in Progress
finished

410 €


ptGMO1
(Lot 27)

GMO-Determination in Maize Flour (qualitative + optional quantitative): 2 Samples with positive and negative amounts of AgroBorder I and/or II, Cry1Ab/Ac, p35S, PAT, t-NOS / Maize + GMO-Maize (Bt11, MIR604) (2 different samples 10 g each)

spiked

Terms & Details
Information letter

July
2027-07-14

< Registration >
in Progress
finished

410 €


ptGMF
(Lot 27)

GMO-Determination in Feed (qualitative + optional quantitative): 2 Samples with positive and negative amounts of Soya + GMO-Soya (RR GTS 40-3-2, RR2 MON89788, MON87701 and MON87708), Maize + GMO-Maize (GA21 RR) and Rape Seed + GMO-Rape Seed / Canola (MON88302) (2 different samples 10 g each with mixed matrices: Flours / Granula / Extraction Grists / Pellets)

NEW Parameter: MON87701 & MON87708

natural contaminated / spiked

Terms & Details
Information letter

August
2027-08-11

< Registration >
in Progress
finished

440 €



5. Nutrients, Additives and Authenticity






ptAU01
(Lot27)

Dietary Fiber, soluble / insoluble Fiber and Inulin in Cereal Milk Pap Powder (method-grouped evaluation: e.g. AOAC 991.43 + AOAC 985.29 / AOAC 2009.01 / AOAC 2017.16 and ISO 22579 (IDF 241):2020 + AOAC 2016.14 and equivalent methods) (2 different samples 40 g each with and without Inulin)

natural / inulin spiked

Terms & Details
Information letter

April
2027-04-07

< Registration >
in Progress
finished

380 €


ptAU04
(Lot27)

Sugar Alcohols (E420, E421, E953, E967, E968) in sugar-free Baking Mix Powder (2 samples, 10 g each)

spiked

Terms & Details
Information letter

June
2027-06-23

< Registration >
in Progress
finished

320 €


ptAU08
(Lot27)

Persipan (Apricot) in Marzipan (qualitative + optional quantitative evaluation) The content of Persipan is in the range of 0.5-2.0% for one of the two samples and for the other sample in the range of 10-20%. Suitable for PCR and HPLC methods (2 samples with different levels, 25 g each)

[incurred]

Terms & Details
Information letter

July
2027-07-21

< Registration >
in Progress
finished

360 €


ptAU11
(Lot27)

Vegan Compliance Check (according to e.g. the international V-Label guidelines for unintended traces) – 2 samples qualitative (with known contents): Animal Ingredients in Vegan Burger Powder negative sample (< 0.1 %) and positive sample with at least two animal components (> 0.1 %) (e.g. Vertebrates DNA, Egg Protein / Chicken DNA, Fish Protein / DNA, Meat or Gelatine Protein / DNA, Milk Protein / DNA from Cow, Goat or Sheep) (2 different samples of 50 g each) All available results (from DNA-based as well as protein-based methods) should be considered to assess whether the final decision for the samples is “vegan compliant” or not (animal ingredients < 0.1 % or > 0.1 %). Additionally, a qualitative evaluation is done for all available parameters separately for the following groups of methods: protein-based methods (e.g. ELISA, IEF, MALDI-TOF) and DNA-based methods (e.g. PCR-techniques, NGS, Microarrays).

spiked

Terms & Details
Information letter

October
2027-10-06
< Registration >
in Progress
finished

380 €


ptAU12
(Lot27)

Intentional Adulteration / Allergen Contamination of 100 % Hazelnut and Pistachio Paste (qualitative + optional quantitative analysis): involving at least one adulteration parameter (> 1.0 %) and one contamination parameter (Almond, Cashew, and/or Peanut) (2 different samples of 20 g each)
NEW Adulteration of Nut Paste

spiked

Terms & Details
Information letter

September
2027-09-08

< Registration >
in Progress
finished

500 €


ptAU13
(Lot27)

Water Activity (aw value) in Feed (Complete Feed for Laying Hens) (2 samples 30 g each)
NEW aw Value in Feed

-

Terms & Details
Information letter

February
2027-02-10

< Registration >
in Progress
finished

280 €


Animal Species-Screening (qualitative)

ptAUS1-4: 3 Samples or 6 Samples (ptAUS4) with portions of Animal Origin (meat, milk, fish, crustacean or mollusc products) are provided. The evaluation of results is strictly qualitative with indication of the obtained agreements with the consensus values of the participants and the spiking of samples. The analytical methods are optional.





ptAUS1
(Lot 27)

Animal Species-Screening I – 3 Samples qualitative (with known contents): Meat from Beef, Goat, Poultry (Chicken and Duck (genus: anas or cairina)), Sheep and Gelatine from Pork in Cooked Meat Product (Sausage Meat) (3 different samples 30 g each)

[incurred]

Terms & Details
Information letter

March
2027-03-17

< Registration >
in Progress
finished

410 € (cooled)


ptAUS2
(Lot 27)

Animal Species-Screening II – 3 Samples qualitative (with known contents): Meat from Donkey, Horse, Game (Deer or Fallow Deer), Pork, Poultry (Turkey) and Gelatine from Beef in cooked Meat Product (Sausage Meat) (3 different samples 30 g each)

[incurred]

Terms & Details
Information letter

October
2027-10-20

< Registration >
in Progress
finished

410 € (cooled)


ptAUS3
(Lot 27)

Animal Species-Screening III – 4 Samples qualitative (with known contents): Donkey Milk, Mare's Milk, Camel Milk, Cow's Milk, Sheep's and Goat's Milk in Milk Powder (freeze-dried Mixtures, 4 different Samples 25 g each)

spiked

Terms & Details
Information letter

May
2027-05-12

< Registration >
in Progress
finished

410 €


ptAUS4
(Lot 27)

Seafood-Screening – 6 Samples qualitative (with known contents): Common Sole (Solea solea), Barramundi / “Asian Sea Bass“ (Lates calcarifer), Common Cuttlefish (Sepia officinalis), Black Tiger Prawn (Penaeus monodon) and one of the clams: Grooved Carpet Shell (Ruditapes decussatus) or Manila Clam (Ruditapes philippinarum) (freeze-dried, 5 samples (10 g each) with only one of the indicated species, 6th sample (10 g) mixed sample of 2-4 species)

 -

Terms & Details
Information letter

December
2027-12-08

< Registration >
in Progress
finished

470 €


ptAUS5
(Lot 27)

Ruminants-free Feed Compliance – 2 Samples qualitative: Ruminant DNA in Compound Feed for Cattle (negative sample (< 0.1 %) and positive sample with > 0.1 % meat and / or bone meal from Ruminants (2 samples 10 g each)

spiked

Terms & Details
Information letter

October
2027-10-06

< Registration >
in Progress
finished

330 €


Customisable Single Proficiency Tests (SPTs)
for Animal Species & Seafood Species Identifications available!

By means of a SPT it is possible to participate individually and flexibly at any time (and also in a shortened timescale) in a
proficiency test format for a single participant laboratory. The consensus values of the SPT test materials are determined on the basis of known reference values from previous PTs / inter laboratory tests, contents of spiked analytes (reference standard) or
by reference laboratories. Order on demand: Please contact us at service@dla-pt.net for more information.

Available parameters

In the matrix Cooked Meat Product (Sausage Meat):
Beef, Pork, Turkey, Chicken, Goose, Duck (species: anas or cairina), Horse, Donkey, Deer (capreolus capreolus), Sheep and Goat

in the matrices Herder Cheese / Mozzarella Cheese / Milk Powder:
e.g. Buffalo, Cow, Goat, Sheep, Camel, Horse, Donkey

in the area of seafood authentication (samples with 100% of one species and mixed samples available):
e.g.  Argentine red shrimp (Pleoticus muelleri), Atlantic halibut (Hippoglossus hippoglossus), Atlantic salmon (Salmo salar), Black halibut / Greenland halibut (Reinhardtius hippoglossoides), Black tiger prawn (Penaeus monodon), Bonito / Skipjack tuna (Katsuwonus pelamis), Cod fish (Gadus morhua), Crab / Brown crab (Cancer pagurus), Japanese scallop (Mizuhopecten yessoensis), King prawn / Northern prawn (Pandalus borealis), Longfin tuna / Albacore (Thunnus alalunga), Malabar blood snapper (Lutjanus malabaricus), Octopus (Octopus vulgaris), Pangasius / Striped catfish (Pangasianodon hypophthalmus), Pilgrim's scallop / Great scallop (Pecten jacobaeus, Pecten maximus), Rainbow trout (Oncorhynchus mykiss), Saithe / Coalfish (Pollachius virens), Scampi / Norway lobster (Nephrops norvegicus), White tiger prawn (Penaeus vannamei), Yellowfin tuna (Thunnus albacares)






6. Food Supplements and Dietetic Products






ptSU01
(Lot 27)

Food Supplement: Vitamins B1, B2, B6, B12, Biotin, Vitamin C, Folic Acid , Niacin and Pantothenic Acid in Capsule Powder (enriched / high levels; 2 samples 50 g each)

enriched / high levels

Terms & Details
Information letter

February
2027-02-17

< Registration >
in Progress
finished

410 € (cooled)


ptSU02
(Lot 27)

Food Supplement: Vitamins A, E, D3, K1, β-Carotene, Coenzyme Q10 (total CoQ10, Ubiquinone, Ubiquinol) and Alpha Lipoic Acid in Capsule Powder (enriched / high levels; 2 samples 50 g each)

enriched / high levels

Terms & Details
Information letter

March
2027-03-03

< Registration >
in Progress
finished

410 € (cooled)


ptSU06
(Lot 27)

Dietetic Product: Vitamins B1, B2, B6, B12, Biotin, Vitamin C, Folic Acid , Niacin and Pantothenic Acid in Meal Replacement (enriched / low levels; 2 samples 50 g each)

enriched / low levels

Terms & Details
Information letter

September
2027-09-15

< Registration >
in Progress
finished

410 € (cooled)


ptSU07
(Lot 27)

Dietetic Product: Vitamins A, E, D3, K1 and β-Carotene in Meal Replacement (enriched / low levels; 2 samples 50 g each)

enriched / low levels

Terms & Details
Information letter

November
2027-11-24

 < Registration >
in Progress
finished

410 € (cooled)


ptSU10
(Lot27)

Free Amino Acids and Taurine in Food (Infant Food) (2 samples 10 g each)

-

Terms & Details
Information letter

August
2027-08-18

< Registration >
in Progress
finished

415 €


ptSU12
(Lot27)

Glucosamine in Capsule Powder (2 samples 25 g each)

-

Terms & Details
Information letter

March
2027-03-03

< Registration >
in Progress
finished

335 €



Double Sample Material can be ordered for every PT


with PT shipment


90 €

After the evaluation report is finished our PT materials are usually available as Reference Material!
Reference material can be ordered at our webshop at my DLA | participant's portal (https://my.dla-pt.com)




More parameter/matrices are available in Single-Proficiency Tests!
See also our SPT programme on our website





The minimum number of participants is 10 with the exception of single proficiency tests (SPT).

All prices exclude shipping costs and VAT. Our general terms and conditions [DE - AGB] or [EN - GTC] apply, see at www.dla-lvu.de

Shipment currently: € 12,50 in Germany, € 40 into EU-Countries and Europe, € 80 all other countries.
All prices are provisional and subject to change.
Please note: there can be a handling charge of approx. € 35 for payments from non-EU countries. 

Import duties, local taxes and customs clearance fees have to be paid by participants directly.

 (cooled) Additional costs of € 20 may be charged for cold shipping if temperature-sensitive samples are sent to countries with high temperatures.
cooled Cold shipping required: Additional costs of € 20 are charged.






Please feel free to send us comments on our current program or suggestions for future proficiency tests, e.g. missing parameters or matrices!
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Downloads:

Registration form (PDF-file)

DLA Evaluation Guide 01.02 (2024) Allergen PT Schemes (qualitative + quantitative) (PDF-file Download)
DLA Evaluation Guide 02.02 (2024) General PT Schemes (qualitative + quantitative) (PDF-file Download)
to open the guides a password is required (password on request)

DLA - Proficiency Tests GmbH
Hauptstr. 80, 23845 Oering, Germany
Tel. +49-(0)4532-9183358 - Mob. +49-(0)171-1954375 - email: pt@dla-lvu.de
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