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EPTIS factsheet 153374 | Last revision 2021-10-29 | URL: https://www.eptis.bam.de/pts153374 https://www.eptis.bam.de/pts153374

PT provider
PT provider DRRR - Deutsches Referenzbüro für Ringversuche und Referenzmaterialien GmbH DRRR - Deutsches Referenzbüro für Ringversuche und Referenzmaterialien GmbH
Based in Germany
Language(s) German/English
Remarks This proficiency testing is an excellent tool for your extern assurance for sensory analysis of milk products and of food flavourings.. In addition it serves as recognizied proof of the compentence of your testing panel in the external appearance. The sensory triangle test is one of the most important sensory difference tests and an established quality assurance measure. The comparability of the organoleptic testing is the necessary prerequisite. With our proficiency testing schemes you can ensure the comparability of your organoleptic testing and demonstrate this in external representation. The proficiency testing serves to ensure the compliance with legal regulation of minimum requirement of fat in butter. The fatty acid pattern gives an information about the composition of the fat and is an information about the used fat in regard to polyunsaturated fatty acids and saturated fatty acids. The anaylsis of the value assessing parameters in yoghurt is requested in this proficiency testing round. Whey is a product which derives from the cheese production. Especially the whey protein is of high nutritional value. To show the comparability of the chemical-physical testing of whey this proficiency testing is suitable. Additives for stabilisation in dessert can lead to incorrect interpretation in the analyse of fat, dry matter and protein, e.g. in the IR-spectroscopy. This proficiency testing is suitable to demonstrate your competence. AMF is a product which is primarily used in industry. Negligence in the production can create features which are undesired, e.g. a high peroxide value.
Product groups Food and drink
Testing fields Analytical chemistry
Sensory testing
Technical details
Test item Tested property Testing method
Butter pH value -
Sodium Chloride -
Solids non-fat -
Water content -
Hardness -
Cholesterol -
Butter (fatty acid pattern) Fatty acid composition C4-C20 -
Yoghurt Total lactic acid -
pH value -
Fat -
Dry matter -
Protein -
Sensory impression Ranking test (basic tastes)
Triangle test (basic taste)
Ranking test (flavours)
Triangle test (flavour)
Whey frozen NPN -
Lactose -
Calcium -
ash -
Fat -
Dry matter -
Protein -
Phosphorus -
Sulfate -
Potassium -
Pudding/Dessert pH value -
Lactose -
Fat -
Dry matter -
Protein -
AMF - anhydrous milk fat Water content -
Alkalinity -
Free fatty acids -
Peroxide value -
Carotene -
Butyric acid methyl ester -
Ice-cream frozen Fat -
Milkfat -
Colouring agent E 124 (cochenille red A) -
Vanillin -
Vanillic acid -
p-hydroxybenzaldehyde -
p-hydroxybenzoic acid -
Lactosecolouring agent E 100 (curcumin) (qualitative) -
Foreign fat (qualitative) -
Colouring agent beta-carotene (E 160) (qualitative) -
Enterobacteriaceae -
Salmonella spp. -
E.coli -
Listeria monocytogenes -
Aims of the PT scheme
Target group of participants all laboratories
Linked to specific legislation / standards
Additional, subsidiary aims validation of testing methods
Number of participants
Accredited or otherwise reviewed by a 3rd party

Accredited by A2LA (USA) and DAkkS (Germany) on the basis of ISO/IEC 17043 for part of the parameters

Operation is commissioned / requested by
Fees and frequency
Participation fee 209 - 316 Euro, depending on sample and parameters
Regularly operated Yes (several times p.a., dep. on sample and parameters)
Year of first operation 2007, 2016
Contact details of the PT provider
Provider Contact person
DRRR - Deutsches Referenzbüro für Ringversuche und Referenzmaterialien GmbH
Reinhartser Straße 31
87437 Kempten

Phone: +49 (0) 831/960 8780
Fax: +49 (0) 831/960 87899
Web: http://www.drrr.de http://www.drrr.de
Dr. Ulrich Leist
Phone: +49 (0) 831/960 87878
Fax: +49 (0) 831/960 87899
Email: info@drrr.de info@drrr.de
If you find any mistakes please contact the responsible EPTIS coordinator in Germany, Mr Johannes van de Kreeke. Mr Johannes van de Kreeke.
Any questions or problems? Please contact us at eptis@bam.de.
Application version: 1.23-SNAPSHOT.20230502124635-7925ae379a631fc1ececff45d2921c8db38877d5