ISO 2613-2:2023 PDF
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Analysis of natural gas — Silicon content of biomethane — Part 2: Determination of siloxane content by gas chromatography with ion mobility spectrometry
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 %.
| Edition | 2023 |
|---|---|
| Standard Part No | 2 |
| Published Date | 2023 |
| Published By | International Standardization Organisation |
| Page Count | 10 |
