Leather and fur - Chemical determination of metal content -
Part 1: Extractable metals
WARNING: The concentrated acids used in this document are very corrosive and/or oxidizing liquids, which could raise the possibility of fire or explosion in the event of contact with ignitable materials. They might cause acute or chronic health dangers as well. Moreover, they are hazardous to water. Suitable safety measures are therefore necessary during the test with them.
1 Scope
This document specifies a method for the determination of the respective content of 22 extractable metals in leather and fur, including: aluminum (Al), arsenic (As), barium (Ba), calcium (Ca), cadmium (Cd), cobalt (Co), chromium (Cr), copper (Cu), iron (Fe), potassium (K), magnesium (Mg), lead (Pb), manganese (Mn), molybdenum (Mo), nickel (Ni), mercury (Hg), antimony (Sb), selenium (Se), tin (Sn), titanium (Ti), zinc (Zn) and zirconium (Zr)
This document is applicable for determining the respective content of 22 extractable metals in various types of leather and fur, and is also suitable for determining the content of extractable chromium in chromium-tanned leather.
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 3922 Textiles - Tests for colour fastness - Colour fastness to perspiration (GB/T 3922-2013, ISO 105-E04:2013, MOD)
GB/T 6682 Water for analytical laboratory use - Specification and test methods (GB/T 6682-2008, ISO 3696:1987, MOD)
GB/T 39364 Leather - Chemical, physical, mechanical and fastness tests - Sampling location (GB/T 39364-2020, ISO 2418:2017, MOD)
QB/T 1267 Fur - Chemical, physical and mechanical and fastness tests - Sampling location (QB/T 1267-2012, ISO 2418:2002, MOD)
QB/T 1272 Fur - Preparation of chemical test samples (QB/T 1272-2012, ISO 4044:2008, MOD)
QB/T 1273 Fur - Chemical tests - Determination of volatile matter (QB/T 1273-2012, ISO 4684:2005, MOD)
QB/T 1276 Fur - Chemical tests - Determination of matter soluble in carbon tetrachloride (QB/T 1276-2012, ISO 4048:2008, MOD)
QB/T 2716 Leather - Preparation of chemical test samples (QB/T 2716-2018, ISO 4044:2008, MOD)
QB/T 2717 Leather - Chemical tests - Determination of volatile matter (QB/T 2717-2018, ISO 4684:2005, MOD)
QB/T 2718 Leather - Chemical tests - Determination of matter soluble in dichloromethane (QB/T 2718-2018, ISO 4048:2008, MOD)
3 Terms and definitions
No terms and definitions are listed in this document.
4 Principle
The leather samples are extracted by acid artificial-perspiration solution and the resultant extracts are filtered and acidified. Then the respective content of metals in the extracts are determined by inductively coupled plasma optical emission spectrometer (ICP-OES), inductively coupled plasma mass spectrometer (ICP-MS), atomic absorption spectrometer (AAS) or atomic fluorescence spectrometer (AFS), and the respective content of extractable metals in the samples are thus calculated.
Note: This method determines the respective content of extractable metals, not the content of a specific metal compound or metal oxide.
5 Reagents and materials
Foreword II
Introduction V
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents and materials
6 Apparatus
7 Sampling and sample preparation
8 Procedure
9 Calculation and expression of results
10 Test report
Annex A (Informative) Structural changes between this document and ISO 17072-1:2019
Annex B (Informative) Technical differences between this document and ISO 17072-1:2019 and their causes
Annex C (Normative) Preparation of standard solutions and standard working solutions for elements to be determined
Annex D (Informative) Determination wavelengths and inter-element interference for determination of elements using ICP-OES
Annex E (Informative) Analytical isotopes and limits of detection used in ICP-MS method
Annex F (Informative) Determination wavelengths and recommended test conditions for determination of elements using AAS
Annex G (Informative) Interlaboratory results comparison and limits of detection
Bibliography
Leather and fur - Chemical determination of metal content -
Part 1: Extractable metals
WARNING: The concentrated acids used in this document are very corrosive and/or oxidizing liquids, which could raise the possibility of fire or explosion in the event of contact with ignitable materials. They might cause acute or chronic health dangers as well. Moreover, they are hazardous to water. Suitable safety measures are therefore necessary during the test with them.
1 Scope
This document specifies a method for the determination of the respective content of 22 extractable metals in leather and fur, including: aluminum (Al), arsenic (As), barium (Ba), calcium (Ca), cadmium (Cd), cobalt (Co), chromium (Cr), copper (Cu), iron (Fe), potassium (K), magnesium (Mg), lead (Pb), manganese (Mn), molybdenum (Mo), nickel (Ni), mercury (Hg), antimony (Sb), selenium (Se), tin (Sn), titanium (Ti), zinc (Zn) and zirconium (Zr)
This document is applicable for determining the respective content of 22 extractable metals in various types of leather and fur, and is also suitable for determining the content of extractable chromium in chromium-tanned leather.
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 3922 Textiles - Tests for colour fastness - Colour fastness to perspiration (GB/T 3922-2013, ISO 105-E04:2013, MOD)
GB/T 6682 Water for analytical laboratory use - Specification and test methods (GB/T 6682-2008, ISO 3696:1987, MOD)
GB/T 39364 Leather - Chemical, physical, mechanical and fastness tests - Sampling location (GB/T 39364-2020, ISO 2418:2017, MOD)
QB/T 1267 Fur - Chemical, physical and mechanical and fastness tests - Sampling location (QB/T 1267-2012, ISO 2418:2002, MOD)
QB/T 1272 Fur - Preparation of chemical test samples (QB/T 1272-2012, ISO 4044:2008, MOD)
QB/T 1273 Fur - Chemical tests - Determination of volatile matter (QB/T 1273-2012, ISO 4684:2005, MOD)
QB/T 1276 Fur - Chemical tests - Determination of matter soluble in carbon tetrachloride (QB/T 1276-2012, ISO 4048:2008, MOD)
QB/T 2716 Leather - Preparation of chemical test samples (QB/T 2716-2018, ISO 4044:2008, MOD)
QB/T 2717 Leather - Chemical tests - Determination of volatile matter (QB/T 2717-2018, ISO 4684:2005, MOD)
QB/T 2718 Leather - Chemical tests - Determination of matter soluble in dichloromethane (QB/T 2718-2018, ISO 4048:2008, MOD)
3 Terms and definitions
No terms and definitions are listed in this document.
4 Principle
The leather samples are extracted by acid artificial-perspiration solution and the resultant extracts are filtered and acidified. Then the respective content of metals in the extracts are determined by inductively coupled plasma optical emission spectrometer (ICP-OES), inductively coupled plasma mass spectrometer (ICP-MS), atomic absorption spectrometer (AAS) or atomic fluorescence spectrometer (AFS), and the respective content of extractable metals in the samples are thus calculated.
Note: This method determines the respective content of extractable metals, not the content of a specific metal compound or metal oxide.
5 Reagents and materials
Contents of GB/T 22930.1-2021
Foreword II
Introduction V
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents and materials
6 Apparatus
7 Sampling and sample preparation
8 Procedure
9 Calculation and expression of results
10 Test report
Annex A (Informative) Structural changes between this document and ISO 17072-1:2019
Annex B (Informative) Technical differences between this document and ISO 17072-1:2019 and their causes
Annex C (Normative) Preparation of standard solutions and standard working solutions for elements to be determined
Annex D (Informative) Determination wavelengths and inter-element interference for determination of elements using ICP-OES
Annex E (Informative) Analytical isotopes and limits of detection used in ICP-MS method
Annex F (Informative) Determination wavelengths and recommended test conditions for determination of elements using AAS
Annex G (Informative) Interlaboratory results comparison and limits of detection
Bibliography
