Art. No.

proficiency testing type ^[A]

requested parameters

2010186

Leather - Identification of

leather with microscopy (ISO 17131)

identification of leather (imitation leather and leather of various animal species)

2010189

Leather – Determination of

total metal content (ISO 17072-2)

e.g. chromium, lead and cadmium

2010233

Leather – Determination of

water soluble matter (ISO 4098)

water-soluble substances, water-soluble inorganic substances

2010192

Leather - Determination of volatile matter (ISO 4684)

Mass of volatile substances

2010194

Leather – Determination of

the preservative content (ISO 13365-1)

CAS 21564-17-0 (TCMTB), CAS 59-50-7

(CMK), CAS 90-43-7 (OPP), CAS 26530-20-1 (OIT)

2010196

Leather – formaldehyde content ISO 17226-1

CAS 50-00-0 (formaldehyde)

2010198

Leather - Determination of

aromatic amines from azo dyes (ISO 17234-1)

qualitative and quantitative detection of azo dyes over aromatic amines according to ISO 17234-1

2010200

Leather - Determination of 4-

aminoazobenzene (ISO 17234-2)

CAS 60-09-3 (4-aminoazobenzene) according to ISO 17234-2

2010202

Leder – Bestimmung von Chlorphenolen (ISO 17070)

Tetrachlorophenol-, trichlorophenol-,

dichlorophenol-, monochlorophenol- isomers and CAS 87-86-5 (pentachlorophenol)

2010265

Leather - Determination of organotin compounds

CAS 1118-46-3 (monobutyltin trichloride), CAS 3091-25-6 (trichlorooctylstannane), CAS 683-18-1 (dibutyltin dichloride), CAS 3542-36-7 (dioctyltin dichloride), CAS 1461-

22-9 (tributyltin chloride), CAS 639-58-7 (triphenyltin chloride), CAS 3091-32-5 (tricyclohexyltin chloride), CAS 1461-25-2 (tetra-n-butyltin)

2010211

Leather – Determination of alkylphenols and alkylphenol ethoxylates (ISO 18218-1;

ISO 18218-2)

CAS 68412-54-5 (nonylphenol ethoxylate), CAS 9002-93-1 (octylphenol ethoxylate), CAS 84852–15–3 4-(nonylphenol isomer mixture), CAS 140–66–9 (4-tert-

octylphenol)

2010305

Leather – Determination of

naphthalene

CAS 91-20-3 (naphthalene)

2010418

Leather – Determination of

extractable metals (ISO 17072-1)

e.g. chrome, lead and cadmium

2011005

Dimethyl fumarate (DMFU)

in footwear materials (ISO 16186)

Dimethyl fumarate (DMFU)

2011007

Dimethylformamide (DMF) in

footwear materials (ISO 16189)

Dimethylformamide (DMF)