ISO 6338-1:2024

Calculations of greenhouse gas (GHG) emissions throughout the liquefied natural gas (LNG) chain — Part 1: General

This document: — provides the general part of the method to calculate the greenhouse gas (GHG) emissions throughout the liquefied natural gas (LNG) chain, a means to determine their carbon footprint; — defines preferred units of measurement and necessary conversions; — recommends instrumentation and estimation methods to monitor and report GHG emissions. Some emissions are measured; and some are estimated. This document covers all facilities in the LNG chain. The facilities are considered “under operation”, including emissions associated with initial start-up, maintenance, turnaround and restarts after maintenance or upset. The construction, commissioning, extension and decommissioning phases are excluded from this document but can be assessed separately. This document covers all GHG emissions. These emissions spread across scope 1, scope 2 and scope 3 of the responsible organization. Scope 1, 2 and 3 are defined in this document. All emissions sources are covered including flaring, combustion, cold vents, process vents, fugitive leaks and emissions associated with imported energy. This document describes the allocation of GHG emissions to LNG and other hydrocarbon products where other products are produced (e.g. LPG, domestic gas, condensates, sulfur). This document does not cover specific requirements on natural gas production and transport to LNG plant, liquefaction, shipping and regasification. This document is applicable to the LNG industry.

Calcul des émissions de gaz à effet de serre (GES) dans la chaîne gaz naturel liquéfié (GNL) — Partie 1: Généralités

Le présent document: — fournit les généralités sur la méthode de calcul des émissions de gaz à effet de serre (GES) dans la chaîne gaz naturel liquéfié (GNL), un moyen de déterminer leur empreinte carbone; — définit les unités de mesure privilégiées et les conversions nécessaires; — recommande l'instrumentation et les méthodes d'estimation pour surveiller et déclarer les émissions de GES. Certaines émissions sont mesurées et d'autres estimées. Le présent document couvre toutes les installations de la chaîne GNL. Les installations sont considérées comme étant «en exploitation», cela inclut les émissions associées à la mise en service, au démarrage initial, à la maintenance, à la révision et aux redémarrages après une maintenance ou perturbation. Les phases de construction, de mise en service, d'extension et d'abandon sont exclues, mais peuvent être évaluées séparément. Le présent document couvre toutes les émissions de GES. Ces émissions se répartissent entre la catégorie 1, la catégorie 2 et la catégorie 3 de l'organisme responsable. Les catégories 1, 2 et 3 sont définies dans le présent document. Toutes les sources d'émission sont couvertes, y compris le torchage, la combustion, les évents froids, les évents de procédé, les fuites fugitives et les émissions associées à l'énergie importée. Ce document décrit l'allocation des émissions de GES au GNL et aux autres produits d'hydrocarbures lorsque d'autres produits sont produits (par exemple, GPL, gaz domestique, condensats, soufre, etc.). Ce document ne couvre pas les exigences spécifiques relatives à la production, au transport jusqu'à l'usine GNL, à la liquéfaction, au transport maritime et à la regazéification. Ce document est applicable à l'industrie du GNL.

General Information

• Status: Published
• Publication Date: 29-Jan-2024
• ICS: 13.020.40 - Pollution, pollution control and conservation
• ICS: 75.020 - Extraction and processing of petroleum and natural gas
• Technical Committee: ISO/TC 67/SC 9 - Liquefied natural gas installations and equipment
• Drafting Committee: ISO/TC 67/SC 9 - Liquefied natural gas installations and equipment
• Current Stage: 6060 - International Standard published
• Start Date: 30-Jan-2024
• Due Date: 21-Dec-2024
• Completion Date: 30-Jan-2024

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 6338-1
First edition
Calculations of greenhouse gas (GHG)
emissions throughout the liquefied
natural gas (LNG) chain —
Part 1:
General
PROOF/ÉPREUVE
Reference number
ISO 6338-1:2023(E)
© ISO 2023

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ISO 6338-1:2023(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2023
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
ii
PROOF/ÉPREUVE © ISO 2023 – All rights reserved

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ISO 6338-1:2023(E)
Contents Page
Foreword .v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principles . 3
4.1 General . 3
4.2 Relevance . 3
4.3 Completeness . 3
4.4 Consistency . 3
4.5 Transparency . 3
4.6 Accuracy . 3
4.7 Conservativeness. 3
5 GHG inventory boundaries .3
6 Quantification of GHG emissions . 4
6.1 Identification of GHG sources and quantification approach . 4
6.1.1 General . 4
6.1.2 Emissions from fuel combustion . . 4
6.1.3 Emissions from flaring and venting . 5
6.1.4 Fugitiv
...

2023-11-20
ISO/PRF 6338-1:2023(E)
ISO/TC 67/SC 9/WG 10
Secretariat: AFNOR
Date: 2023-11-30
Calculations of greenhouse gas (GHG) emissions throughout
the liquefied natural gas (LNG) chain –
—
Part 1:
General
Calcul des émissions de GES dans la chaine GNL –
Partie 1 : Généralités

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PROOF

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ISO/PRF 6338-1:2023(E)
© ISO 2023
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
© ISO 2023 – All rights reserved iii
© ISO 2023 – All rights reserved iii

---------------------- Page: 3 ----------------------
ISO/PRF 6338-1:2023(E)
Contents
Foreword . vi
Introduction .vi i
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Principles . 3
4.1 General . 3
4.2 Relevance . 3
4.3 Completeness . 3
4.4 Consistency . 3
4.5 Transparency . 3
4.6 Accuracy . 4
4.7 Conservativeness . 4
5 GHG inventory boundaries . 4
6 Quantification of GHG emissions . 4
6.1 Identification of GHG sources and quantification approach . 4
6.1.1 General . 4
6.1.2 Emissions from fuel combustion . 5
6.1.3 Emissions from flaring and venting . 6
6.1.4 Fugitive emissions . 6
6.1.5 Emissions associated with imported ener
...