prEN ISO 2614

Analysis of natural gas - Biomethane - Determination of terpenes' content by micro gas chromatography (ISO/DIS 2614:2022)

This document defines a Micro Gas Chromatography method for the fast and quantitative analysis of five types of terpenes in biomethane, allowing their monitoring online or offline, and covering the range from 1 ppm mol to 10 ppm mol.

Analyse von Erdgas - Analyse von Biomethan - Bestimmung des Terpengehaltes durch Mikrogaschromatographie (ISO/DIS 2614:2022)

Analyse du gaz naturel - Biométhane - Détermination de la teneur en terpènes par micro-chromatographie en phase gazeuse (ISO/DIS 2614:2022)

Analiza zemeljskega plina - Biometan - Določevanje terpenov z mikro plinsko kromatografijo (ISO/DIS 2614:2022)

General Information

• Status: Not Published
• Publication Date: 21-Jan-2025
• Technical Committee: CEN/TC 408 - Project Committee - Biomethane for use in transport and injection in natural gas pipelines
• Drafting Committee: CEN/TC 408 - Project Committee - Biomethane for use in transport and injection in natural gas pipelines
• Current Stage: 4599 - Dispatch of FV draft to CMC - Finalization for Vote
• Start Date: 20-Apr-2023
• Due Date: 18-Dec-2023
• Completion Date: 20-Apr-2023
• Mandate: M/475 - Mandate to CEN for standards for biomethane for use in transport and injection in natural gas piplines
• Ref Project: oSIST prEN ISO 2614:2023 - Analysis of natural gas - Biomethane - Determination of terpenes' content by micro gas chromatography (ISO/DIS 2614:2022)

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN ISO 2614:2023
01-februar-2023
Analiza zemeljskega plina - Biometan - Določevanje terpenov z mikro plinsko
kromatografijo (ISO/DIS 2614:2022)

Analysis of natural gas - Biomethane - Determination of terpenes' content by micro gas

chromatography (ISO/DIS 2614:2022)
Analyse von Erdgas - Analyse von Biomethan - Bestimmung des Terpengehaltes durch
Mikrogaschromatographie (ISO/DIS 2614:2022)
Analyse du gaz naturel - Biométhane - Détermination de la teneur en terpènes par
micro-chromatographie en phase gazeuse (ISO/DIS 2614:2022)
Ta slovenski standard je istoveten z: prEN ISO 2614
ICS:
75.060 Zemeljski plin Natural gas
oSIST prEN ISO 2614:2023 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 2614:2023
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oSIST prEN ISO 2614:2023
DRAFT INTERNATIONAL STANDARD
ISO/DIS 2614
ISO/TC 193/SC 1 Secretariat: NEN
Voting begins on: Voting terminates on:
2022-12-23 2023-03-17
Analysis of natural gas — Biomethane — Determination of
terpenes' content by micro gas chromatography
ICS: 75.060
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
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STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 2614:2022(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2022
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oSIST prEN ISO 2614:2023
ISO/DIS 2614:2022(E)
DRAFT INTERNATIONAL STANDARD
ISO/DIS 2614
ISO/TC 193/SC 1 Secretariat: NEN
Voting begins on: Voting terminates on:
Analysis of natural gas — Biomethane — Determination of
terpenes' content by micro gas chromatography
ICS: 75.060
This document is circulated as received from the committee secretariat.
COPYRIGHT PROTECTED DOCUMENT
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
© ISO 2022
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NATIONAL REGULATIONS.
Website: www.iso.org ISO/DIS 2614:2022(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
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NOTIFICATION OF ANY RELEVANT PATENT
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PROVIDE SUPPORTING DOCUMENTATION. © ISO 2022
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oSIST prEN ISO 2614:2023
ISO/DIS 2614:2022(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction .................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ..................................................................................................................................................................................... 1

3 Terms and definitions .................................................................................................................................................................................... 1

4 Principles of analysis ...................................................................................................................................................................................... 2

4.1 General considerations.................................................................................................................................................................... 2

4.2 Sample handling and injection ................................................................................................................................................. 2

4.2.1 Cleanness .................................................................................................................................................................................. 2

4.2.2 Sampling of biomethane into vessels ............................................................................................................... 2

4.2.3 Sample injection .................................................................................................................................................................. 2

5 Materials ....................................................................................................................................................................................................................... 3

5.1 Terpenes calibration standards .............................................................................................................................................. 3

5.2 Micro gas chromatograph (µGC-TCD) ................................................................................................................................ 3

6 Analysis ........................................................................................................................................... ............................................................................... 3

6.1 Analytical conditions ........................................................................................................................................................................ 3

6.2 Collection of samples ........................................................................................................................................................................ 3

6.3 Quantification method .................................................................................................................................................................... 3

7 Performance characteristics .................................................................................................................................................................. 4

8 Test report .................................................................................................................................................................................................................. 4

Annex A (informative) Terpene characteristics and analytical conditions ..............................................................5

Bibliography ................................................................................................................................................................................................................................ 7

iii
© ISO 2022 – All rights reserved
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oSIST prEN ISO 2614:2023
ISO/DIS 2614:2022(E)
Foreword

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This document was prepared by Technical Committee ISO/TC 193, Natural gas, Subcommittee SC 1,

Analysis of natural gas.

Any feedback or questions on this document should be directed to the user’s national standards body. A

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© ISO 2022 – All rights reserved
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oSIST prEN ISO 2614:2023
ISO/DIS 2614:2022(E)
Introduction

Terpenes can occur naturally in biogas and remain as trace components after treatment in the

biomethane produced. Terpenes are odoriferous compounds that have the potential to mask the smell

of the odorant added to the biomethane before injection into the natural gas grid. For safety reasons it

is necessary to monitor these impurities.

This document describes a method to perform the analysis of five terpenes in biomethane. The method

includes both on-line and offline measurement techniques based on chromatography and can be of

interest to fuel specifications for biomethane.

This document contributes to the standardization of the determination of terpenes in biomethane. The

document relates to good housekeeping in supply of biomethane into the natural gas grid.

© ISO 2022 – All rights reserved
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oSIST prEN ISO 2614:2023
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oSIST prEN ISO 2614:2023
DRAFT INTERNATIONAL STANDARD ISO/DIS 2614:2022(E)
Analysis of natural gas — Biomethane — Determination of
terpenes' content by micro gas chromatography
1 Scope
This doc
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