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EVS-EN IEC 62321-11:2024

Determination of certain substances in electrotechnical products - Part 11: Tris(2-chloroethyl) phosphate (TCEP) in plastics by gas chromatography-mass spectrometry (GC-MS) and liquid chromatography-mass spectrometry (LC-MS)

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Kehtiv alates 01.02.2024
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IEC 62321-11:2023; EN IEC 62321-11:2024
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Nimetus
01.02.2024
Põhitekst
This part of IEC 62321 specifies two different techniques for the determination of TCEP tris(2-chloroethyl) phosphate (TCEP) in plastics, the GC-MS or LC-MS method; both of which are suitable for quantitative analysis.
These two techniques have been evaluated for use with polyurethane, Polyvinyl chloride and polyethylene materials containing TCEP between 200 mg/kg to 2 000 mg/kg. Use of the methods escribed in International Standard for other polymers and concentration ranges has not been specifically evaluated.
These test methods do not apply to plastics materials having a processing temperature higher than 230 ℃.
NOTE TCEP starts thermal decomposition at approximately 230 ℃. Polymer types which have a processing temperature into shapes of plastics (e.g. pellets, moulded parts, or sheets etc.) not exceeding the decomposition temperature can contain TCEP.
Py-TD-GC-MS is another technique, suitable for the screening of TCEP in plastics (See Annex A).
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