ISO/TR 18588:2023

Petroleum products — Characterization of marine fuels by viscosity-gravity constant

This document provides best practices on the calculation and use of an informative indicator for the characterization of fossil residual marine fuels not containing FAME as defined in ISO 8217. This document is based on established guidance used by the petroleum industry to characterize petroleum fractions in terms of their paraffinic, naphthenic or aromatic nature, by their viscosity-gravity constant.

Produits pétroliers — Caractérisation des combustibles pour la marine par la constante viscosité-gravité

Le présent document décrit les meilleures pratiques dans le cadre du calcul et de l'utilisation d'un indicateur informatif pour la caractérisation de combustibles résiduels fossiles pour la marine ne contenant pas d'EMAG, tel que défini dans l'ISO 8217. Le présent document se base sur les recommandations établies utilisées par l'industrie pétrolière pour caractériser les fractions pétrolières au regard de leur nature paraffinique, naphténique ou aromatique, par leur constante viscosité-gravité.

General Information

• Status: Published
• Publication Date: 21-Sep-2023
• ICS: 75.160.20 - Liquid fuels
• Technical Committee: ISO/TC 28/SC 4 - Classifications and specifications
• Drafting Committee: ISO/TC 28/SC 4 - Classifications and specifications
• Current Stage: 6060 - International Standard published
• Start Date: 22-Sep-2023
• Completion Date: 22-Sep-2023

Standards Content (Sample)

TECHNICAL ISO/TR
REPORT 18588
First edition
2023-09
Petroleum products —
Characterization of marine fuels by
viscosity-gravity constant
Produits pétroliers — Caractérisation des combustibles pour la
marine par la constante viscosité-gravité
Reference number
ISO/TR 18588:2023(E)
© ISO 2023

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ISO/TR 18588:2023(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
  © ISO 2023 – All rights reserved

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ISO/TR 18588:2023(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Characterization of petroleum fuels .1
4.1 General . 1
4.2 BMCI (or CI) . 2
4.2.1 General . 2
4.2.2 Calculation of BMCI (or CI) . 2
4.2.3 Algorithm to calculate BMCI (or CI) . 4
4.3 Viscosity-gravity constant . 4
4.3.1 General . 4
4.3.2 Calculation of VGC . 4
4.3.3 Algorithm to calculate VGC . 4
5 Samples data analysis .5
5.1 General . 5
5.2 BMCI versus VGC and density for fuels with S content ≤0,50 % by mass . 5
5.3 BMCI versus VGC and density for fuels with S content ≥0,50 % by mass . 6
5.4 Significance and use of VGC .
...

RAPPORT ISO/TR
TECHNIQUE 18588
Première édition
2023-09
Produits pétroliers — Caractérisation
des combustibles pour la marine par
la constante viscosité-gravité
Petroleum products — Characterization of marine fuels by viscosity-
gravity constant
Numéro de référence
ISO/TR 18588:2023(F)
© ISO 2023

---------------------- Page: 1 ----------------------
ISO/TR 18588:2023(F)
DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2023
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
ii
  © ISO 2023 – Tous droits réservés

---------------------- Page: 2 ----------------------
ISO/TR 18588:2023(F)
Sommaire Page
Avant-propos .iv
Introduction .v
1 Domaine d'application .1
2 Références normatives .1
3 Termes et définitions . 1
4 Caractérisation des combustibles pétroliers . 1
4.1 Généralités . 1
4.2 BMCI (ou CI) . 2
4.2.1 Généralités . 2
4.2.2 Calcul du BMCI (ou CI) . 2
4.2.3 Algorithme pour calculer le BMCI (ou CI) . 3
4.3 Constante viscosité-gravité . 4
4.3.1 Généralités . 4
4.3.2 Calcul de la VGC . 4
4.3.3 Algorithme pour calculer la VGC . 4
5 Analyse des données fournies par les échantillons . 5
5.1 Généralités . 5
5.2 BMCI en fonction de la VGC et de la masse volumique pour combustibles dont la
teneur en soufre est ≤0,50 % en masse . 5
5.3 BMCI en fonction de la VGC et de la masse volumique pour combustibles dont la
teneur en soufre est ≥0,50 % en masse .
...

FINAL
TECHNICAL ISO/DTR
DRAFT
REPORT 18588
ISO/TC 28/SC 4
Petroleum products —
Secretariat: AFNOR
Characterization of marine fuels by
Voting begins on:
2023-05-25 viscosity gravity constant
Voting terminates on:
2023-07-20
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
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/DTR 18588:2023(E)
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. © ISO 2023

---------------------- Page: 1 ----------------------
ISO/DTR 18588:2023(E)
FINAL
TECHNICAL ISO/DTR
DRAFT
REPORT 18588
ISO/TC 28/SC 4
Petroleum products —
Secretariat: AFNOR
Characterization of marine fuels by
Voting begins on:
viscosity gravity constant
Voting terminates on:
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.
RECIPIENTS OF THIS DRAFT ARE INVITED TO
ISO copyright office
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
CP 401 • Ch. de Blandonnet 8
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
CH-1214 Vernier, Geneva
DOCUMENTATION.
Phone: [phone]
IN ADDITION TO THEIR EVALUATION AS
Reference number
Email: [e-mail]
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
ISO/DTR 18588:2023(E)
Website: www.iso.org
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
Published in Switzerland
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN­
DARDS TO WHICH REFERENCE MAY BE MADE IN
ii
  © ISO 2023 – All rights reserved
NATIONAL REGULATIONS. © ISO 2023

---------------------- Page: 2 ----------------------
ISO/DTR 18588:2023(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Characterization of petroleum fuels .1
4.1 General . 1
4.2 BMCI (or CI) . 2
4.2.1 General . 2
4.2.2 Calculation of BMCI (or CI) . 2
4.2.3 Algorithm to calculate BMCI (or CI) . 3
4.3 Viscosity-gravity constant . 3
4.3.1 General .
...

ISO/CD 8217:2022(E) Formatted: Font: 11 pt
ISO/DTR 18588:2023(E)
Formatted: Left, Space After: 0 pt, Line
spacing: single
ISO TC 28/SC 4/WG 6
Style Definition
...
  Date: 2023-03-2705-11 Formatted: Bottom: 1 cm, Footer distance
from edge: 0.5 cm, Different first page header
Secretariat: AFNOR
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Petroleum products — Characterisation of marine fuels by viscosity-gravity
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constant
Formatted: zzCover, Space After: 0 pt, Line
spacing: single, Tab stops: Not at 0.71 cm +
Produits pétroliers — Caractérisation des combustibles pour la marine par la constante
13.69 cm + 17.2 cm
viscosité-gravité
Formatted: Font: 13 pt
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DTR stage

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ISO/DTR 18588:2023(E) Formatted: Font: 11.5 pt
© ISO 2023
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single
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,
Formatted: Font: 11.5 pt
electronic or mechanical, including photocopying, or posting on the internet or an intranet,
Formatted: Font: 11 pt, Not Bold
without prior written permission. Permission can be requested from either ISO at the address
below or ISO’sISO's member body in the country of the requester.
Formatted: Font: 11 pt
ISO copyright officeCopyright Office
Formatted: Font: 11 pt
CP 401 • Ch. de Blandonnet 8 Formatted: Font: 11 pt
CH-1214 Vernier, Geneva
Formatted: Font: 11 pt
Phone: + 41 22 749 01 11
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Email: [e-mail]
Formatted: zzCopyright, Left, Indent: First
Email: [e-mail] line: 0 cm, Right: 0 cm, Line spacing: single,
Border: Left: (No border), Right: (No border),
Website: www.iso.orgwww.iso.org
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Published in Switzerland.
cm
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Kingdom)
Formatted: Font: 11 pt, English (United
Kingdom)
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Kingdom)
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line: 0 cm, Right: 0 cm, Space After: 0 pt, Line
spacing: single, Border: Bottom: (No border),
Left: (No border), Right: (No border), Tab
stops: Not at 0.71 cm + 0.91 cm + 16.97 cm
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Kingdom)
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Kingdom)
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2 © ISO 2023 – All rights reserved
ii © ISO 2023 – All rights reserved

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ISO/DTR 18588:2023(E) Formatted: Font: 11.5 pt
Formatted: Font: 11 pt, Not Bold
Formatted: Space After: 0 pt, Line spacing:
single
Contents     Page
Formatted: Font: 11.5 pt
Foreword . iv
Formatted: Font: 15 pt
Introduction . v
Formatted: Font: 15 pt
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Characterisation of petroleum fuels . 6
4.1 General . 6
4.2 BMCI (or CI). 7
4.2.1 General . 7
4.2.2 Calculation of BMCI (or CI) . 7
4.2.3 Algorithm to calculate BMCI (or CI) . 9
4.3 VGC .
...