ISO 17072-1:2019 pdf free
ISO 17072-1:2019 pdf free.Leather – Chemical determination of metal content
This document specifies a method for the determination of extractable metals in leather using extraction with an acid artificial-perspiration solution 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 extractable metals in leather; it is not compound-specific or specific to the oxidation state of the metals. This method is especially suitable for determining the extractable chromium in chromium-tanned leathers.
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements 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.
ISO 105-E04, Textiles一Tests for colour fastness一Part E04: Colour fastness to perspiration
ISO 2418, Leather一Chemical, physical and mechanical and fastness tests一Sampling location
ISO 3696, Water for analytical laboratory use一Specification and test methods
ISO 4044, Leather一Chemical tests一Preparation of chemical test samples
ISO 4684, Leather一Chemical tests一Determination of volatile matter
ISO 11885, Water quality 一Determination of selected elements by inductively coupled plasma optical emission spectrometry (lCP-OES)
ISO 15586, Water quality一Determination of trace elements using atomic absorption spectrometry with graphite. furnace
The solution obtained in 8.2 can be analysed directly, provided it contains a concentration of analysed metals within calibration limits. Otherwise, the solution should be diluted as appropriate.
Prepare standard reference solutions of the required metals in accordance with ISO 11885, using perspiration solution (8.1), water or acidified water.
The test report shall include at least the following information:
a) name of the laboratory;
b) a reference to this document, i.e. ISO 17072-1;
c) a specification of the applied analytical system used;
d) a description of the leather sample tested;
e) results of the dry matter determination;
f) results obtained for the amount of extracted metal, expressed in milligrams per kilogram of dry leather (mg/kg);
g) details of any deviations from this standard test method.ISO 17072-1 pdf free download.
