Abstract

This document specifies a Tuneable Diode Laser Absorption Spectroscopy method for the determination of ammonia content of biogas, natural gas or biomethane This document describes the suitable handling and sampling of pressurised mixtures of ammonia in methane that are applied to several different ammonia measurement systems. The measurement systems comprise of readily available commercial spectroscopic analysers that are specific to ammonia. The method is applicable to the determination of ammonia concentrations from 1 mg/m3 (1,3 ppm volume fraction) to 100 mg/m3 (132 ppm volume fraction). The method has a lower limit of detection of about 0,4 mg/m3 (0,5 ppm volume fraction) NH3 in air with the tested analyser in Annex B.

Begin

2021-12-13

WI

00408015

Planned document number

DIN EN ISO 2612

Project number

03200936

Responsible national committee

NA 032-03-08 AA - Biogas  

Responsible european committee

CEN/TC 408 - Natural gas and biomethane for use in transport and biomethane for injection in the natural gas grid  

Responsible international committee

ISO/TC 193/SC 1/WG 25 - Biomethane  

draft standard

Analysis of natural gas - Biomethane - Determination of ammonia content by Tuneable Diode Laser Absorption Spectroscopy (ISO/DIS 2612:2023); German and English version prEN ISO 2612:2023
2023-10
Order from DIN Media