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BS EN ISO 2613-2:2023

BS EN ISO 2613-2:2023

$102.76

Analysis of natural gas. Silicon content of biomethane – Determination of siloxane content by gas chromatography with ion mobility spectrometry

Published By Publication Date Number of Pages
BSI 2023 20
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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 %.

PDF Catalog

PDF Pages PDF Title
2 undefined
11 5.1 Calibration gases
5.2 Diluent gas
5.3 Carrier and drift gas
12 7.1 General
7.2 Safety precautions
7.3 Temperature control
7.4 Construction materials
13 7.5 Cleanness
7.6 Sampling of biomethane into vessels
7.7 Installation of the calibration gas cylinder
7.8 Pressure control
7.9 Purging of wetted flow path
14 7.10 Flow control
7.11 Diffusion control
8.1 Calibration procedure
8.2 Frequency of calibration
9.1 Safety precautions
9.2 Analysis
15 10.1 Quantities and units
10.2 Uncertainty
10.3 Test report

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BS EN ISO 2613-2:2023
$102.76