What is ISO 18219-1 about?
ISO 18219-1 is the first part of the multi-series ISO 18219. ISO 18219-1 specifies a chromatographic method to determine the amount of short chain chlorinated paraffin (SCCPs) C10 to C13 in processed and unprocessed leathers
Who is ISO 182191 for?
ISO 18219-1 on the determination of chlorinated hydrocarbons in leather is useful for:
- Leather manufacturing industries
- Leather testers
- Chemical laboratories
Why should you use ISO 18219-1?
Short chain chlorinated paraffins (SCCPs) are a mixture of chlorinated hydrocarbons with a chain length of 10 to 13 carbon atoms and chlorine content of 40 % to 70 %. SCCPs are classified as dangerous to the environment since they are very toxic to aquatic organisms and can cause long-term adverse effects in the aquatic environment. The analysis of chlorinated paraffin is a challenge. The technical compounds are mixtures of up to 200 congeners with different chain lengths and degrees of chlorination. GC chromatograms of these complex mixtures typically show a lot of overlapping peaks that can be difficult to separate. In particular, the responses to the various chlorination degrees can vary over a broad range.
ISO 18219-1 describes a procedure to compare the chromatogram results for SCCPs compounds from a test sample with the chromatogram results of a defined calibration standard of the most typically used mixture (59 % chlorination for SCCPs). With this gas chromatography negative ion chemical ionization mass spectrometry (GC-ECNI-MS) procedure it uses four ion traces for identifying the SCCPs.
Short chain chlorinated paraffin (SCCPs) makes the leather flexible. It is flame retardant.
It protects the leather from the flame, so it is safe for the end users’ safety.
What is changed since the last update?
BS EN ISO 18219-1:2021 supersedes ISO 18219:2015. BS EN ISO 18219-1:2021includes some technical changes with respect to ISO 18219:2015. These include:
- A modification of the ISO number and the title
- Introduction revised and updated
- Updated terms and definitions
- Technical changes to Principle
- Internal standard solution, linden a new internal standard
- Sulphuric acid clean-up the SPE clean-up changed to a procedure using sulphuric acid