Proficiency Tests


The participation in proficiency testing schemes is an essential element of the quality-management-system of every laboratory testing food and feed. The implementation of proficiency tests enables the participating laboratories to prove their own analytical competence under realistic conditions. At the same time they receive valuable data regarding the validity of the particular testing method. The purpose of DLA is to offer proficiency tests for selected parameters in concentrations with practical relevance. Realisation and evaluation of the present proficiency test follows the principles of the DIN EN ISO/IEC 17043 (2010) and DIN ISO 13528-2009.

DLA proficiency tests are listed at the coordination-office for laboratory proficiency tests (DKLL) of the BVL – management authority for health-related consumer protection.

From the year 2014 on our anonymised Evaluation Reports are available as PDF-files (see below).

Reference material from our finished tests may be ordered exclusively from Coring System Diagnostix, Gernsheim (www.coring.de).



Our program 2014 includes the following proficiency tests:

The minimum number of participants is 10.

DLA-No.

Proficiency Test

Terms

Start

Status

Download


Elicitors of Allergies and Intolerance Reactions





01/2014

Allergens I: Egg and Milk in Sausage with „Spiking Material Sample“

PDF

February

finished

Evaluation Report

02/2014

Allergens II: Soya and Wheat in „gluten free“ Pastry with „Spiking Material Sample“

PDF

March

finished

Evaluation Report

03/2014

Allergens III: beta-Lactoglobulin and Gluten in Infant Food with „Spiking Material Sample“

PDF

April

finished

Evaluation Report

04/2014

Allergens IV: Celery, Mustard and Sesame in Instant Soup with „Spiking Material Sample“

PDF

August

finished

Evaluation Report

05/2014

Allergens V: Pistachio and Peanut in Pastry with „Spiking Material Sample“

PDF

September

finished

Evaluation Report

06/2014

Allergens VI: Almond and Hazelnut in Chocolate with „Spiking Material Sample“

PDF

October

finished

Evaluation Report

07/2014

Allergens VII: Crustaceae and cashew in Instant Product with „Spiking Material Sample“

PDF

December

finished

Evaluation Report

08/2014

Lactose and Fructose in "lactose free" Food with „Spiking Material Sample“

PDF

February

finished

Evaluation Report

09/2014

Food Dyes in Sweets

PDF

August

finished

Evaluation Report

10/2014

Biogenic Amines in Hard Cheese

PDF

August

canceled



Mycotoxins





11/2014

Aflatoxins in Peanut

PDF

February

finished

Evaluation Report

12/2014

DON and Zearalenon in Grains

PDF

January

finished

Evaluation Report

13/2014

Fumonisins in Corn

PDF

April

finished

Evaluation Report

14/2014

Ochratoxin A in Coffee

PDF

November

finished

Evaluation Report

15/2014

Ochratoxin A in Grapefruit Seed Extract

PDF

March

canceled


16/2014

Aflatoxins and Ochratoxin A in spice mixture

PDF

July

finished

Evaluation Report

17/2014

Patulin in Apple Product

PDF

April

finished

Evaluation Report

18/2014

Ergot-Alkaloides in Cereal Product

PDF

March

finished

Evaluation Report


Potentially toxic Compounds, Contaminants and Residues





19/2014

Melamine in Milk Powder (every 2 years)

PDF

October

finished

Evaluation Report

20/2014

Sudan Dyes in Spices

PDF

January

finished

Evaluation Report

21/2014

Ethylene Oxide / Chloroethanol in Spices

PDF

October

canceled


22/2014

Contaminated Food: Heavy Metals (Pb, Cd, Hg, As)

PDF

May

finished

Evaluation Report


Genitically-modified Organisms





23/2014

GMO-Screening qualitative: 5 Samples with positive/negative amount of GMO-Maize (Bt11) and GMO-Soya (RR)

PDF

May

finished

Evaluation Report

24/2014

GMO-Soya (RR) quantitative in Pastry with „Spiking Material Sample“

PDF

June

canceled


25/2014

GMO-Screening qualitative: 5 Samples with positive/negative amount of other GMOs (e.g. Pollen in Honey, Rape and Papaya)

PDF

July

finished

Evaluation Report


Nutrients, Additives and Ingredients of Quality





26/2014

Dietary Fiber and Inulin in Cereals

PDF

April

finished

Evaluation Report

27/2014

Methylcafestol in 3 coffee blends

PDF

March

canceled


28/2014

Sugar Alcohols in Sweets (every 2 years in exchange with Steviosides)

PDF

May

finished

Evaluation Report


Food Supplements and Dietetic Products





29/2014

Food Supplement I: Vitamins A, D3, E, K1 and beta-Carotin
(every 2 years in exchange with water-soluble Vitamins)

PDF

May

finished

Evaluation Report

30/2014

Food Supplement II: Biotin, Vitamin C, Niacin and Pantothenic Acid

PDF

October

finished

Evaluation Report

31/2014

Heavy Metals and Trace Elements in a mineral supplement , approx. 20 Elements

PDF

May

finished

Evaluation Report

32/2014

Total Amino Acid Composition in Food

PDF

September

finished

Evaluation Report

33/2014

Free Amino Acids in Food (in combination with 32/2014 only 195 €)

PDF

September

finished

Evaluation Report


Cosmetic Products and other Contact Materials





34/2014

Cosmetic Products I: Volatile Oils and Terpenoids (Allergenic Parfume Ingredients)

PDF

June

finished

in German only

35/2014

Cosmetic Products II: Preservatives and limited allowed Substances

PDF

September

finished

Evaluation Report

36/2014

Cosmetic Products III: Zinc-Pyrithione, Piroctone Olamine and Climbazol in Anti-Dandruff Product
(every 2 years in exchange with UV-Filter in Sun Protection Product)

PDF

June

canceled


37/2014

Cosmetic Products IV: Coenzyme Q10 (Ubiquinone)
( every 2 years in exchange with in Food Supplement)

PDF

November

finished

Evaluation Report

38/2014

Contact Material I: Release of Elements from Aluminium Foil and one Sample of Metal Solution


shifted


canceled


39/2014

Contact Material II: Analysis of Melamine Material

PDF

November

canceled


40/2014

Contact Material III: PAH from Plastic Food Contact Material

PDF

November

finished

in German only

41/2014

Children's Product: Analysis of 8 Elements in Make-Up / Finger Paint (As, Ba, Cd, Cr, Hg, Pb, Sb, Se)

PDF

September

finished

Evaluation Report

Online: Registration form including prices (html-form)
Download: Registration form including prices (PDF-file)


DLA - Dienstleistung Lebensmittel Analytik GbR
Dipl.-Chem Udo Kasel, Dr. Gerhard Wichmann & Dr. Matthias Besler
Pinnberg 5, 22927 Großhansdorf, Germany
Tel. +49-4102/201611 Fax. +49-4102/201612
Email: proficiency-testing@dla-lvu.de