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BSI BS EN ISO 2612:2023

Analysis of natural gas. Biomethane. Determination of ammonia content by tuneable diode laser absorption spectroscopy
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BSI BS EN ISO 2612:2023

Analysis of natural gas. Biomethane. Determination of ammonia content by tuneable diode laser absorption spectroscopy

PUBLISH DATE 2024
PAGES 20
BSI BS EN ISO 2612:2023
This document describes several test methods for measuring the ammonia amount fraction in natural gas and biomethane at the trace level (µmol mol-1). The suitable handling and sampling of pressurised mixtures of ammonia in methane that are applied to several different ammonia measurement systems are described. The measurement systems are comprised of readily available commercial spectroscopic analysers that are specific to ammonia. These NH3 analysers are considered as a black box in terms of their operation, which is dependent on the instructions of the manufacturer. The document describes suitable calibration and measurement strategies to quantify ammonia in (bio)methane around and above the 10 mg m-3 (14 µmol mol-1) level and applies to analysis within absolute pressure ranges of 1 bar – 2 bar, temperatures of 0 °C – 40 °C and relative humidity <90 %. References are also made to additional standards that are applied either to natural gas analysis or air quality measurements. In this document the matrix gas is always methane or biomethane and the measurand is the amount fraction NH3. NOTE            1 bar = 0,1 MPa =105 Pa; 1 MPa = 1 N/mm2.
SDO BSI: British Standards Institution
Document Number ISO 2612
Publication Date Jan. 3, 2024
Language en - English
Page Count 20
Revision Level
Supercedes
Committee PTI/15
Publish Date Document Id Type View
Jan. 3, 2024 BS EN ISO 2612:2023 Revision