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EPTIS factsheet 612662 | Last revision 2019-11-04 | URL: https://www.eptis.bam.de/pts612662 https://www.eptis.bam.de/pts612662

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) English
Remarks Nowadays leather is mainly used for the production of shoes. Leather is also used in accessories, clothing, jewelry, furniture, ball covers, equestrian sports and car interiors. Many hazardous chemicals and allergens are used to tan leather. In order to check compliance with the legal limits, it is important to be able to examine these substances in a comparable way. Therefore, we have developed a comprehensive leather proficiency testing program and we are looking forward to improve the leather quality with you.
Product groups Leather
Testing fields Analytical chemistry
Technical details
Test item Tested property Testing method
Leather identification Microscopy
Determination of water soluble substances water-soluble substances
water-soluble inorganic substances
Determination of the metal content Chromium
Determination of preservatives CAS 21564-17-0 (TCMTB)
CAS 59-50-7 (CMK)
CAS 90-43-7 (OPP)
CAS 26530-20- 1 (OIT)
Determination of volatile substances Mass
Determination of formaldehyde content CAS 50-00-0 (formaldehyde)
Determination of aromatic amines from azo dyes detection of azo dyes over aromatic amines according to DIN EN ISO 17234-1
Determination of 4-aminoazobenzene CAS 60-09-3 (4-aminoazobenzene) acc. to ISO 17234-2
Chlorophenols Tetrachlorophenol-isomers
CAS 87-86-5 (pentachlorophenol)
Organotin compounds 1118-46-3 (monobutyltin trichloride)
3091- 25-6 (trichlorooctylstannane)
683-18-1 (dibutyltin dichloride)
3542-36-7 (dioctyltin dichloride)
1461-22-9 (tributyltin chloride)
639-58-7 (triphenyltin chloride)
091-32-5 (tricyclohexyltin chloride)
1461-25-2 (tetran- butyltin)
alkylphenols and alkylphenol ethoxylates CAS 68412-54-5 (nonylphenol ethoxylate)
CAS 9002-93-1 (octylphenol ethoxylate)
CAS 84852–15–3 4-(nonylphenol isomer mixture)
140–66–9 (4-tert-octylphenol)
Naphthalene CAS 91-20-3 (naphthalene)
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 depending on test methods between 8 - 50 laboratoties
Accredited or otherwise reviewed by a 3rd party
Operation is commissioned / requested by
Fees and frequency
Participation fee 369 €
Regularly operated Yes (several times p.a., dep. on sample and parameters)
Year of first operation 2020
Contact details of the PT provider
Provider Contact person
DRRR - Deutsches Referenzbüro für Ringversuche und Referenzmaterialien GmbH
Bodmanstraße 4
87435 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: 1.21