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NS-EN ISO 2613-2:2023

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Abstract

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

Document information

  • Standard from SN
  • Published:
  • Edition: 2023-12
  • Version: 1
  • Document type: NAT
  • ICS 75.060
  • National Committee SN/K 32

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