Textil- och läderteknik

Ämnesområden: Läder och päls
Kommittébeteckning: SIS/TK 158 (Läder och skodon)
Källa: ISO
Svarsdatum: den 17 okt 2021
Se merSe mindre
 

This International Standard specifies a method for assessing the propensity of dyes and pigments to migrate from leather to a synthetic substrate by determining the transfer of colour from the leather to white polymeric material in contact with it.
This method is suitable for leather of all kinds at any stage of processing.

Ämnesområden: Läder och päls
Kommittébeteckning: SIS/TK 158 (Läder och skodon)
Källa: CEN
Svarsdatum: den 17 okt 2021
Se merSe mindre
 

This International Standard specifies a method for assessing the propensity of dyes and pigments to migrate from leather to a synthetic substrate by determining the transfer of colour from the leather to white polymeric material in contact with it.
This method is suitable for leather of all kinds at any stage of processing.

Ämnesområden: Läder och päls
Kommittébeteckning: SIS/TK 158 (Läder och skodon)
Källa: ISO
Svarsdatum: den 21 nov 2021
Se merSe mindre
 

This document specifies a method for the determination of the total metal content in leather using digestion of the leather and subsequent determination with inductively coupled plasma optical emission
spectrometry (ICP-OES), inductively coupled plasma mass spectrometry (ICP-MS), atomic absorption spectrometry (AAS) or spectrometry of atomic fluorescence (SFA).
This method determines the total metal content in leather; it is not compound-specific or specific to the oxidation state of the metals.
The method is applicable for determining the following metals:
Aluminium (Al) Copper (Cu) Potassium (K)
Antimony (Sb) Iron (Fe) Selenium (Se)
Arsenic (As) Lead (Pb) Silicon (Si)
Barium (Ba) Magnesium (Mg) Sodium (Na)
Cadmium (Cd) Manganese (Mn) Tin (Sn)
Calcium (Ca) Mercury (Hg) Titanium (Ti)
Chromium (Cr) (except chromium-tanned leathers) Molybdenum (Mo) Zinc (Zn)
Cobalt (Co) Nickel (Ni) Zirconium (Zr)
This method is also suitable for determining Boron (B) in leather.
In the case of chromium-tanned leathers, it is often more relevant to use ISO 5398-1[1], ISO 5398-2[2],
ISO 5398-3[3] or ISO 5398-4 [4].
Interlaboratory test results and the quantification limits possible with ICP-OES are given in Table A.1 and Table A.2 of Annex A.
For the determination of Al and Ti in leather the extraction procedure given in Annex B shall be used.

Ämnesområden: Läder och päls
Kommittébeteckning: SIS/TK 158 (Läder och skodon)
Källa: CEN
Svarsdatum: den 21 nov 2021
Se merSe mindre
 

This document specifies a method for the determination of the total metal content in leather using digestion of the leather and subsequent determination with inductively coupled plasma optical emission
spectrometry (ICP-OES), inductively coupled plasma mass spectrometry (ICP-MS), atomic absorption spectrometry (AAS) or spectrometry of atomic fluorescence (SFA). This method determines the total metal content in leather; it is not compound-specific or specific to the oxidation state of the metals.
The method is applicable for determining the following metals:
Aluminium (Al) Copper (Cu) Potassium (K)
Antimony (Sb) Iron (Fe) Selenium (Se)
Arsenic (As) Lead (Pb) Silicon (Si)
Barium (Ba) Magnesium (Mg) Sodium (Na)
Cadmium (Cd) Manganese (Mn) Tin (Sn)
Calcium (Ca) Mercury (Hg) Titanium (Ti)
Chromium (Cr) (except chromium-tanned leathers) Molybdenum (Mo) Zinc (Zn)
Cobalt (Co) Nickel (Ni) Zirconium (Zr)
This method is also suitable for determining Boron (B) in leather.
In the case of chromium-tanned leathers, it is often more relevant to use ISO 5398-1[1], ISO 5398-2[2],
ISO 5398-3[3] or ISO 5398-4 [4].
Interlaboratory test results and the quantification limits possible with ICP-OES are given in Table A.1 and Table A.2 of Annex A.
For the determination of Al and Ti in leather the extraction procedure given in Annex B shall be used.

Ämnesområden: Belagda tyger
Kommittébeteckning: SIS/TK 160 (Textil)
Källa: CEN
Svarsdatum: den 29 nov 2021
Se merSe mindre
 

This document specifies test conditions and the procedure to be followed for determining the tear strength of a trapezoidal specimen of a rubber- or plastics-coated fabric, using a tensile testing machine. This test can be carried out:
• either on test specimens conditioned in reference atmospheres; or
• on test specimens which have been subjected to any necessary treatment for the application considered, for example dipping.

Kommittébeteckning: SIS/TK 158 (Läder och skodon)
Källa: CEN
Svarsdatum: den 30 nov 2021
Se merSe mindre
 

This document is a method for determining ethoxylated alkylphenols (nonyphenol ethoxylate [NPEOn with 1 ≤ n ≤ 16] and octylphenol ethoxylate [OPEOn with 1 ≤ n ≤ 16]) in leather. This direct method is especially suitable where a larger number of leather samples are to be checked for the presence of ethoxylated alkylphenols.
This method requires the use of high-performance liquid chromatography (HPLC) with triple quadrupole mass spectrometer (MSMS) to identify and quantify the ethoxylated alkylphenols.
NOTE 1 In the leather industry, the most commonly used commercial ethoxylated alkylphenol has been the NPEO with an average of 9 EO. It has an optimum cloud point in water for the typical leather processing temperatures of 40 °C to 55 °C.
NOTE 2 ISO 18218-1 and ISO 18218-2[1] use different solvents for the extraction of the ethoxylated alkylphenols from leather. Consequently, the two analytical methods are expected to give similar trends but not necessarily the same absolute result for the ethoxylated alkylphenol content in leather.

Kommittébeteckning: SIS/TK 158 (Läder och skodon)
Källa: ISO
Svarsdatum: den 30 nov 2021
Se merSe mindre
 

This document is a method for determining ethoxylated alkylphenols (nonyphenol ethoxylate [NPEOn with 1 ≤ n ≤ 16] and octylphenol ethoxylate [OPEOn with 1 ≤ n ≤ 16]) in leather. This direct method is especially suitable where a larger number of leather samples are to be checked for the presence of ethoxylated alkylphenols.
This method requires the use of high-performance liquid chromatography (HPLC) with triple quadrupole mass spectrometer (MSMS) to identify and quantify the ethoxylated alkylphenols.
NOTE 1 In the leather industry, the most commonly used commercial ethoxylated alkylphenol has been the NPEO with an average of 9 EO. It has an optimum cloud point in water for the typical leather processing temperatures of 40 °C to 55 °C.
NOTE 2 ISO 18218-1 and ISO 18218-2[1] use different solvents for the extraction of the ethoxylated alkylphenols from leather. Consequently, the two analytical methods are expected to give similar trends but not necessarily the same absolute result for the ethoxylated alkylphenol content in leather.

Ämnesområden: Läder och päls
Kommittébeteckning: SIS/TK 158 (Läder och skodon)
Källa: ISO
Svarsdatum: den 30 nov 2021
Se merSe mindre
 

This document specifies a test method for detection and quantification of extractable non-volatile per- and polyfluoroalkyl substances (PFAS) in leather and coated leather by solvent extraction and liquid chromatography coupled with mass spectrometry.
This document, taking into account the three-dimensional distribution of the fibres within leather, makes the evaluation of the PFAS with respect to the mass.
Classes of regulated compounds listed in Annex B, Table B.1, include acids, telomers, sulfonates and sulphonamide alcohols. Classes of other non-regulated compounds that can be determined by this document are listed in Annex C, Table C.1.

Ämnesområden: Läder och päls
Kommittébeteckning: SIS/TK 158 (Läder och skodon)
Källa: CEN
Svarsdatum: den 30 nov 2021
Se merSe mindre
 

This document specifies a test method for detection and quantification of extractable non-volatile per- and polyfluoroalkyl substances (PFAS) in leather and coated leather by solvent extraction and liquid chromatography coupled with mass spectrometry.
This document, taking into account the three-dimensional distribution of the fibres within leather, makes the evaluation of the PFAS with respect to the mass.
Classes of regulated compounds listed in Annex B, Table B.1, include acids, telomers, sulfonates and sulphonamide alcohols. Classes of other non-regulated compounds that can be determined by this document are listed in Annex C, Table C.1.

Ämnesområden: Läder och päls
Kommittébeteckning: SIS/TK 158 (Läder och skodon)
Källa: CEN
Svarsdatum: den 2 dec 2021
Se merSe mindre
 

This International Standard describes a method for determining the water vapour permeability of leather and provides alternative methods of sample preparation and for the measurement procedure.

Ämnesområden: Läder och päls
Kommittébeteckning: SIS/TK 158 (Läder och skodon)
Källa: ISO
Svarsdatum: den 2 dec 2021
Se merSe mindre
 

This International Standard describes a method for determining the water vapour permeability of leather and provides alternative methods of sample preparation and for the measurement procedure.