ČSN EN ISO 2613-2

Analysis of natural gas - Silicon content of biomethane - Part 2: Determination of siloxane content by gas chromatography with ion mobility spectrometry

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Detail information

Designation: ČSN EN ISO 2613-2

Publication date: 01/06/2024

Pages: 24

Country: Czech technical standard

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Anotation

This document describes a gas chromatography - ion mobility spectroscopy (GC-IMS) method for the determination of the concentration of siloxanes in biomethane. The method is applicable to the following siloxanes:
- hexamethyldisiloxane (L2);
- octamethyltrisiloxane (L3);
- decamethyltetrasiloxane (L4);
- dodecamethylpentasiloxane (L5);
- hexamethylcyclotrisiloxane (D3);
- octamethylcyclotetrasiloxane (D4);
- decamethylcyclopentasiloxane (D5);
- dodecamethylcyclohexasiloxane (D6).
This document describes suitable calibration and measurement strategies to quantify siloxanes in (bio)methane around and above the 0,3 mg m-3 (14 µmol mol-1) level and applies to analyses within absolute pressure ranges of 1 bar - 2 bar, temperatures of 0 °C - 40 °C and relative humidity < 90 %

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