Textil- och läderteknik

This document specifies a method, by determining the nitrogen content, to calculate the proportion of each component, after the removal of non-fibrous matter, in textiles made of mixtures of

— jute

with animal fibres.

The animal-fibre component may consist solely of hair or wool, or of any mixtures of the two.

This part of ISO 1833 is not applicable to products in which dyestuffs or finishes contain nitrogen.

NOTE Because this method differs in principle from the general method based on selective solubility set out in ISO 1833-1, it is given in a form that is complete in itself.

This part of ISO 945 specifies a method of classifying the microstructure of graphite in cast irons by comparative visual analysis.

The purpose of this part of ISO 945 is to provide information about the method of graphite classification. It is not intended to give information on the suitability of cast-iron types and grades for any particular application.

The particular material grades are specified mainly by mechanical properties and, in the case of austenitic and abrasion resistant cast irons, by their chemical composition. The interpretation of graphite form and size does not allow a statistically valid statement on the fulfilment of the requirements specified in the relevant material standard.

This International Standard specifies a test method for the determination of the total content (solvent extractible) of the following preservative agents:

— 2-(thiocyanomethylthio)-benzothiazole (TCMTB);

— 4-chloro-3-methylphenol (PCMC);

— 2-phenylphenol (OPP);

— 2-octylisothiazol-3(2H)-one (OIT);

in leather by liquid chromatography. This method can also be used to determine breakdown products of these preservative agents.

Preservative agents are necessary to protect leather from microbiological attack.

NOTE The preservative agents 4-chloro-3-methylphenol (PCMC) and 2-phenylphenol (OPP) can also be determined according to ISO 17070[1] and quantified by means of gas chromatography/mass spectroscopy (GC/MS).

This International Standard specifies a test method for the determination of the aqueous extractable content of the following preservative agents:

— 2-(thiocyanomethylthio)-benzothiazole (TCMTB);

— 4-chloro-3-methylphenol (PCMC);

— 2-phenylphenol (OPP);

— 2-octylisothiazol-3(2H)-one (OIT);

in leather by liquid chromatography. This method can also be used to determine breakdown products of these preservative agents.

Preservative agents are necessary to protect leather from microbiological attack.

NOTE The preservative agents 4-chloro-3-methylphenol (PCMC) and 2-phenylphenol (OPP) can also be determined according to ISO 17070[1] and quantified by means of gas chromatography/mass spectroscopy (GC/MS).

This International Standard specifies a test method for the determination of the tanning agents through filtration for all vegetable and synthetic tanning products.

This part of ISO 17234 specifies a method for determining the use of certain azo colorants which can release certain aromatic amines.

This International Standard specifies a chromatographic method to determine the amount of short-chain chlorinated paraffins (SCCP) C10-C13 in processed and unprocessed leathers.

Annex A is for information only.