ISO 2615:2024

Analysis of natural gas —Biomethane — Determination of the content of compressor oil

This document gives general guidance for the sampling and gas chromatographic analysis of compressor oil in biomethane or compressed natural gas (CNG). The compressor oil mass fraction is determined by sampling on coalescing filters under defined operational conditions (the two first cubic meters of gas referring to standard conditions, delivered at a refuelling station). Compressor oils are lubricants used in mechanical devices where the purpose is to reduce the volume and increase the pressure of gases for use in a variety of applications. The method is solely applicable to compressed gas (p>18 MPa). The compressor oil content is expressed as mass fraction. The scope of this method is from 3 mg/kg – 30 mg/kg.

Analyse du gaz naturel — Biométhane — Détermination de la teneur en huile de compresseur

Le présent document fournit des recommandations générales relatives au prélèvement et à l'analyse par chromatographie en phase gazeuse de l'huile de compresseur présente dans le biométhane ou dans le gaz naturel comprimé (GNC). La fraction massique de l'huile de compresseur est déterminée par prélèvement sur des filtres coalescents dans des conditions d'exploitation définies (les deux premiers mètres cubes de gaz dans les conditions standard, fournis à une station de ravitaillement). Les huiles de compresseur sont des lubrifiants utilisés dans les dispositifs mécaniques, dont le but est de réduire le volume et d'augmenter la pression des gaz pour une variété d'applications. La méthode est uniquement applicable aux gaz comprimés (p>18 MPa). La teneur en huile de compresseur est exprimée en tant que fraction massique. Le domaine d'application de la présente méthode est compris entre 3 mg/kg et 30 mg/kg.

General Information

• Status: Published
• Publication Date: 24-Apr-2024
• ICS: 75.060 - Natural gas
• Technical Committee: ISO/TC 193/SC 1 - Analysis of natural gas
• Drafting Committee: ISO/TC 193/SC 1 - Analysis of natural gas
• Current Stage: 6060 - International Standard published
• Start Date: 25-Apr-2024
• Due Date: 30-Mar-2024
• Completion Date: 25-Apr-2024

Standards Content (Sample)

International
Standard
ISO 2615
First edition
Analysis of natural gas —
2024-04
Biomethane — Determination of the
content of compressor oil
Analyse du gaz naturel — Biométhane — Détermination de la
teneur en huile de compresseur
Reference number
ISO 2615:2024(en) © ISO 2024

---------------------- Page: 1 ----------------------
ISO 2615:2024(en)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2024
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland

© ISO 2024 – All rights reserved
ii

---------------------- Page: 2 ----------------------
ISO 2615:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Chemicals and materials . 2
5.1 Compressor oils .2
5.2 Solvent .3
5.3 Sampling filters .3
5.4 Backup filters .3
5.5 Calibration standards .3
5.6 Nitrogen pure gas .3
5.7 Compressed liquid propane .3
6 Apparatus . 3
6.1 Gas chromatograph .3
6.2 Capillary column .3
6.3 Ultrasonic bath .
...

Norme
internationale
ISO 2615
Première édition
Analyse du gaz naturel —
2024-04
Biométhane — Détermination de la
teneur en huile de compresseur
Analysis of natural gas — Biomethane — Determination of the
content of compressor oil
Numéro de référence
ISO 2615:2024(fr) © ISO 2024

---------------------- Page: 1 ----------------------
ISO 2615:2024(fr)
DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2024
Tous droits réservés. Sauf prescription différente ou nécessité dans le contexte de sa mise en œuvre, aucune partie de cette
publication ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique,
y compris la photocopie, ou la diffusion sur l’internet ou sur un intranet, sans autorisation écrite préalable. Une autorisation peut
être demandée à l’ISO à l’adresse ci-après ou au comité membre de l’ISO dans le pays du demandeur.
ISO copyright office
Case postale 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Genève
Tél.: [phone]
E-mail: [e-mail]
Web: www.iso.org
Publié en Suisse

© ISO 2024 – Tous droits réservés
ii

---------------------- Page: 2 ----------------------
ISO 2615:2024(fr)
Sommaire Page
Avant-propos .iv
Introduction .v
1 Domaine d'application . 1
2 Références normatives . 1
3 Termes et définitions . 1
4 Principe. 2
5 Produits chimiques et matériaux . 3
5.1 Huiles de compresseur .3
5.2 Solvant de dilution .3
5.3 Filtres de prélèvement .3
5.4 Filtres secondaires .3
5.5 Solutions d'étalonnage .3
5.6 Gaz azote pur . .3
5.7 Propane liquide comprimé . .3
6 Appareillage . 3
6.1 Chromatographe en phase gazeuse .3
6.2 Colonne capillaire .4
6.3 Bain à ultrasons .
...

FINAL DRAFT
International
Standard
ISO/FDIS 2615
ISO/TC 193/SC 1
Analysis of natural gas —
Secretariat: NEN
Biomethane — Determination of the
Voting begins on:
content of compressor oil
2024-01-18
Analyse du gaz naturel — Biométhane — Détermination de la
Voting terminates on:
teneur en huile de compresseur
2024-03-14
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 SUPPOR TING DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
ISO/CEN PARALLEL PROCESSING LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
Reference number
ISO/FDIS 2615:2024(en) © ISO 2024

---------------------- Page: 1 ----------------------
FINAL DRAFT
ISO/FDIS 2615:2024(en)
International
Standard
ISO/FDIS 2615
ISO/TC 193/SC 1
Analysis of natural gas —
Secretariat: NEN
Biomethane — Determination of the
Voting begins on:
content of compressor oil
Analyse du gaz naturel — Biométhane — Détermination de la
Voting terminates on:
teneur en huile de compresseur
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
COPYRIGHT PROTECTED DOCUMENT
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
© ISO 2024
IN ADDITION TO THEIR EVALUATION AS
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
ISO/CEN PARALLEL PROCESSING
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
or ISO’s member body in the country of the requester.
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland Reference number
ISO/FDIS 2615:2024(en) © ISO 2024

© ISO 2024 – All rights reserved
ii

---------------------- Page: 2 ----------------------
ISO/FDIS 2615:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Chemicals and materials . 2
5.1 Compressor oils .2
5.2 Solvent .3
5.3 Sampling filters .3
5.4 Backup filters .
...

ISO/FDIS 2615:2023(E)
ISO/TC 193/SC 1
Date: 2023-11-17
Secretariat: NEN
Date: 2024-01-03
Analysis of natural gas — Biomethane — Determination of the
content of compressor oil
Analyse du gaz naturel — Biométhane — Détermination de la teneur en huile de compresseur
FDIS stage

---------------------- Page: 1 ----------------------
ISO/FDIS 2615:20232024(E)
© ISO 20232024
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this
publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical,
including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can
be requested from either ISO at the address below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel.Phone: + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2023 – All rights reserved
© ISO 2024 – All rights reserved

ii

---------------------- Page: 2 ----------------------
ISO/FDIS 2615:20232024(E)
Contents Page
Foreword . v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Chemicals and materials . 3
5.1 Compressor oils . 3
5.2 Solvent . 4
5.3 Sampling filters . 4
5.4 Backup filters . 4
5.5 Calibration standards . 4
5.6 Nitrogen pure gas. 4
5.7 Compressed liquid propane . 4
6 Apparatus . 4
6.1 Gas chromatograph . 4
6.2 Capillary column . 4
6.3 Ultrasonic bath . 4
6.4 Pressurised fluid extraction apparatus . 4
6.5 Filter housing . 5
6.6 Rotary evaporator, concentration apparatus .
...