ISO 150:2018

Raw, refined and boiled linseed oil for paints and varnishes — Specifications and methods of test

This document specifies the requirements and the corresponding methods of test for raw, refined and boiled linseed oils for paints and varnishes.

Huiles de lin brutes, raffinées et cuites, pour peintures et vernis — Spécifications et méthodes d'essai

Le présent document spécifie les exigences et les méthodes d'essai correspondantes applicables aux huiles de lin brutes, raffinées et cuites pour peintures et vernis.

General Information

• Status: Published
• Publication Date: 05-Nov-2018
• ICS: 87.060.20 - Binders
• Technical Committee: ISO/TC 35 - Paints and varnishes
• Drafting Committee: ISO/TC 35/WG 4 - Binders for paints and varnishes
• Current Stage: 9093 - International Standard confirmed
• Completion Date: 05-Jul-2024

Relations

• Revises: ISO 150:2006 - Raw, refined and boiled linseed oil for paints and varnishes — Specifications and methods of test
• Effective Date: 16-Jul-2016

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 150
Third edition
2018-11
Raw, refined and boiled linseed oil for
paints and varnishes — Specifications
and methods of test
Huiles de lin brutes, raffinées et cuites, pour peintures et vernis —
Spécifications et méthodes d'essai
Reference number
©
ISO 2018
© ISO 2018
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]
Fax: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2018 – All rights reserved

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Required characteristics and their tolerances . 2
5 Sampling . 3
6 Clarity . 3
6.1 Raw oil . 3
6.2 Alkali-refined, acid-refined and boiled oil . 4
7 Phosphoric acid test (PAT value) (for raw linseed oil only) . 4
7.1 Principle . 4
7.2 Reagents. 4
7.3 Apparatus . 4
7.4 Preparation of the sample . 6
7.5 Procedure . 6
7.6 Expression of results . 7
7.7 Precision . 7
7.7.1 Repeatability . 7
7.7.2 Reproducibility . 7
8 Assessment of br eak in alkali-refined linseed oils . 8
8.1 General . 8
8.2 Principle . 8
8.3 Reagent . 8
8.4 Apparatus . 8
8.5 Procedure . 8
8.6 Expression of results . 8
9 Test report . 8
Annex A (informative) Standard values for the composition of fatty acids of raw linseed oil .10
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso
.org/iso/foreword .html.
This document was prepared by Technical Committee ISO/TC 35, Paints and varnishes.
This third edition cancels and replaces the second edition (ISO 150:2006), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— the determination of the composition of fatty acids in accordance with ISO 12966 has been specified;
— ISO 2811-3 (oscillation method) has been added for determination of density;
— the determination of drying time has been deleted;
— reference to the use of the Lovibond colour system as an alternative to the Gardner colour scale has
been deleted because the visual method is too inaccurate;
— sampling in accordance with ISO 15528 has been replaced by sampling in accordance with ISO 5555;
— the preparation of samples in accordance with ISO 661 has been added;
— the standard values for the composition of fatty acids have been revised;
— the normative references in Clause 2 have been updated and the text has been editorially revised.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/members .html.
iv © ISO 2018 – All rights reserved

INTERNATIONAL STANDARD ISO 150:2018(E)
Raw, refined and boiled linseed oil for paints and
varnishes — Specifications and methods of test
1 Scope
This document specifies the requirements and the corresponding methods of test for raw, refined and
boiled linseed oils for paints and varnishes.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 660, Animal and vegetable fats and oils — Determination of acid value and acidity
ISO 661, Animal and vegetable fats and oils — Preparation of test sample
ISO 835, Laboratory glassware — Graduated pipettes
ISO 2114, Plastics (polyester resins) and paints and varnishes (binders) — Determination of partial acid
value and total acid value
ISO 2811-1, Paints and varnishes — Determination of density — Part 1: Pycnometer method
ISO 2811-3, Paints and varnishes — Determination of density — Part 3: Oscillation method
ISO 3681, Binders for paints and varnishes — Determination of saponification value — Titrimetric method
ISO 3961, Animal and vegetable fats and oils — Determination of iodine value
ISO 4618, Paints and varnishes — Terms and definitions
ISO 4630, Clear liquids — Estimation of colour by the Gardner colour scale
ISO 4793, Laboratory sintered (fritted) filters — Porosity grading, classification and designation
ISO 5555, Animal and vegetable fats and oils — Sampling
ISO 5661, Petroleum products — Hydrocarbon liquids — Determination of refractive index
ISO 6320, Animal and vegetable fats and oils — Determination of refractive index
ISO 8534, Animal and vegetable fats and oils — Determination of water content — Karl Fischer method
(pyridine free)
ISO 12966 (all parts), Animal and vegetable fats and oils — Gas chromatography of fatty acid methyl esters
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 4618 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http: //www .electropedia .org/
— ISO Online browsing platform: available at https: //www .iso .org/obp
3.1
raw linseed oil
oil obtained solely from mature seeds of linseed (Linum usitatissimum L.)
3.2
acid-refined linseed oil
oil obtained by refining raw linseed oil with acid
3.3
alkali-refined linseed oil
oil obtained by refining raw linseed oil with sodium hydroxide or other alkali solution
3.4
boiled linseed oil
oil obtained by incorporating driers in raw linseed oil or refined linseed oil and heating either alone or
while blowing through air or oxygen
3.5
break
separation of an (insoluble) mucilaginous product which occurs when certain unrefined vegetable oils
are heated
Note 1 to entry: When separation occurs, the oil is said to “break”. The insoluble matter is also referred to as the
“break”.
4 Required characteristics and their tolerances
Raw, refined and boiled linseed oils shall have the characteristics specified in Table 1.
Table 1 — Required characteristics and their tolerances
Characteristic Requirement Test
method
Raw linseed oil Alkali-refined Acid-refined Boiled linseed oil
linseed oil linseed oil
a
Density ρ 0,924 to 0,931 0,924 to 0,931 0,924 to 0,931 0,926 to 0,948 ISO 2811-
1 or
g/ml
ISO 2811-3
Gardner colour 13 4 6 To be agreed ISO 4630
max. between the inter-
ested parties
b
Gardner colour — — — — —
after heating
max.
a
23 °C is the standard temperature unless otherwise agreed: for example 20 °C, 25 °C, or 27 °C for tropical countries.
b
If the acid value of neutral oil has been increased by the addition of fatty acids, then the requirement for colour after
heating should be agreed upon between the interested parties, as the limits for neutral oil are not necessarily applicable.
c
Stricter requirements may be agreed between the interested parties.
d
Alkali-refined oil may have its acid value adjusted to other limits for specific uses. In such cases the value should be
agreed upon by the interested parties.
e
Or to be agreed between the interested parties.
f
The iodine value and saponification value can also be obtained from the composition of fatty acids.
g
Raw or refined linseed oil with an iodine value over 190 should be designated “High iodine value linseed oil”. The
Hanus method, sometimes used for this test, gives different results to the Wijs method; if it is used by agreement between
the interested parties, prior agreement on specification limits is essential.
2 © ISO 2018 – All rights rese
...

ISO/FDIS 150:2018(E)
ISO/TC 35/SC
Deleted: 2018‐06‐08
Date:  2018‐11
Deleted: /FDIS
ISO/TC 35/WG 4
Secretariat:  NEN
Raw, refined and boiled linseed oil for paints and varnishes —
Specifications and methods of test
Huiles de lin brutes, raffinées et cuites, pour peintures et vernis — Spécifications et méthodes d'essai
© ISO 2018 – All rights reserved
i
ISO/FDIS 150:2018(E)
Deleted: Copyright notice¶
This ISO document is a Draft
International Standard and is copyright‐
protected by ISO. Except as permitted
under the applicable laws of the user's
country, neither this ISO draft nor any
extract from it may be reproduced,
stored in a retrieval system or
transmitted in any form or by any
means, electronic, photocopying,
recording or otherwise, without prior
written permission being secured.¶
Requests for permission to reproduce
should be addressed to either ISO at the
address below or ISO's member body in
the country of the requester.¶
ISO copyright office¶
Case postale 56 • CH‐1211 Geneva 20¶
Tel. + 41 22 749 01 11¶
Fax + 41 22 749 09 47¶
E‐mail [e-mail]¶
Web www.iso.org¶
Reproduction may be subject to royalty
payments or a licensing agreement.¶
Violators may be prosecuted.¶
Section Break (Next Page)
© ISO 2018 – All rights reserved
ii
Contents Page
Annex A (informative) Standard values for the composition of fatty acids of raw linseed oil . 9
© ISO 2018 – All rights reserved
iii
ISO/FDIS 150:2018(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national
standards bodies (ISO member bodies). The work of preparing International Standards is normally
carried out through ISO technical committees. Each member body interested in a subject for which a
technical committee has been established has the right to be represented on that committee.
International organizations, governmental and non‐governmental, in liaison with ISO, also take part in
the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all
matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Deleted: www.iso.org/directives
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents). Deleted: www.iso.org/patents
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT)
see www.iso.org/iso/foreword.html. Deleted: www.iso.org/iso/foreword.html
This document was prepared by Technical Committee ISO/TC 35, Paints and varnishes.
This third edition cancels and replaces the second edition (ISO 150:2006), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— the determination of the composition of fatty acids in accordance with ISO 12966 has been
specified;
— ISO 2811‐3 (oscillation method) has been added for determination of density;
— the determination of drying time has been deleted;
— reference to the use of the Lovibond colour system as an alternative to the Gardner colour scale has
been deleted because the visual method is too inaccurate;
— sampling in accordance with ISO 15528 has been replaced by sampling in accordance with
ISO 5555;
— the preparation of samples in accordance with ISO 661 has been added;
— the standard values for the composition of fatty acids have been revised;
© ISO 2018 – All rights reserved
iv
— the normative references in Clause 2 have been updated and the text has been editorially revised.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
Deleted: www.iso.org/members.ht
ml
© ISO 2018 – All rights reserved
v
FINAL DRAFT INTERNATIONAL STANDARD ISO/FDIS 150:2018(E)ISO 150:2018(E)

Raw, refined and boiled linseed oil for paints and varnishes —
Specifications and methods of test
1 Scope
This document specifies the requirements and the corresponding methods of test for raw, refined and
boiled linseed oils for paints and varnishes.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 660, Animal and vegetable fats and oils — Determination of acid value and acidity
ISO 661, Animal and vegetable fats and oils — Preparation of test sample
ISO 835, Laboratory glassware — Graduated pipettes
ISO 2114, Plastics (polyester resins) and paints and varnishes (binders) — Determination of partial acid
value and total acid value
ISO 2811‐1, Paints and varnishes — Determination of density — Part 1: Pycnometer method
ISO 2811‐3, Paints and varnishes — Determination of density — Part 3: Oscillation method
ISO 3681, Binders for paints and varnishes — Determination of saponification value — Titrimetric method
ISO 3961, Animal and vegetable fats and oils — Determination of iodine value
ISO 4618, Paints and varnishes — Terms and definitions
ISO 4630, Clear liquids — Estimation of colour by the Gardner colour scale
ISO 4793, Laboratory sintered (fritted) filters — Porosity grading, classification and designation
ISO 5555, Animal and vegetable fats and oils — Sampling
ISO 5661, Petroleum products — Hydrocarbon liquids — Determination of refractive index
ISO 6320, Animal and vegetable fats and oils — Determination of refractive index
ISO 8534, Animal and vegetable fats and oils — Determination of water content — Karl Fischer method
(pyridine free)
ISO 12966 (all parts), Animal and vegetable fats and oils — Gas chromatography of fatty acid methyl
esters
© ISO 2018 – All rights reserved
ISO/FDIS 150:2018(E)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 4618 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
3.1
raw linseed oil
oil obtained solely from mature seeds of linseed (Linum usitatissimum L.)
3.2
acid-refined linseed oil
oil obtained by refining raw linseed oil with acid
3.3
alkali-refined linseed oil
oil obtained by refining raw linseed oil with sodium hydroxide or other alkali solution
3.4
boiled linseed oil
oil obtained by incorporating driers in raw linseed oil or refined linseed oil and heating either alone or
while blowing through air or oxygen
3.5
break
separation of an (insoluble) mucilaginous product which occurs when certain unrefined vegetable oils
are heated
Note 1 to entry: When separation occurs, the oil is said to “break”. The insoluble matter is also referred to as the
“break”.
4 Required characteristics and their tolerances
Raw, refined and boiled linseed oils shall have the characteristics specified in Table 1.
Table 1 — Required characteristics and their tolerances
Characteristic Requirement Test
method
Raw linseed oil Alkali-refined Acid-refined Boiled linseed
linseed oil linseed oil oil
a
Density ρ23 0,924 to 0,931 0,924 to 0,931 0,924 to 0,931 0,926 to 0,948 ISO 2811‐
1 or
g/ml
ISO 2811‐
Gardner colour 13 4 6 To be agreed ISO 4630
between the
max.
interested parties
b
Gardner colour — — — — —
after heating
© ISO 2018 – All rights reserved
max.
c
Clarity No sediment A slight turbidity is allowed; after — Clause 6
shortly heating to 45 °C the turbidity
at 65 °C
shall disappear and the oil shall stay
clear after cooling to 20 °C
a
Refractive index 1,478 0 to 1,483 0 1,478 0 to 1,483 0 1,478 0 to 1,483 0 — ISO 5661
or
n
D
ISO 6320
Deleted: ¶
Water 0,20 0,10 0,10 0,30 ISO 8534
max. % (mass
Deleted: ¶
fraction)
d e e
Deleted: ¶
Acid value 4 1 9 8 ISO 2114
max. mg KOH/g or
ISO 660
Deleted: ¶
Saponification 188 to 195 188 to 195 188 to 195 188 to 200 f
ISO 3681
value
Deleted: ¶
mg KOH/g
Deleted:
Iodine value, min. 175 175 175 — f
ISO 3961
g
Deleted: ¶
(Wijs method)
Phosphoric acid 0,25 — — — Clause 7
test (PAT value)
Deleted: ¶
max. % (mass
Deleted: ¶
fraction)
Break — Non‐visible — — Clause 8
Composition of see Annex A see Annex A see Annex A see Annex A ISO 12966
fatty acids (all parts)
a
23 °C is the standard temperature unless otherwise agreed: for example 20 °C, 25 °C, or 27 °C for tropical countries.
b
If the acid value of neutral oil has been increased by the addition of fatty acids, then the requirement for colour after
heating should be agreed upon between the interested parties, as the limits for neutral oil are not necessarily applicable.
c
Stricter requirements may be agreed between the interested parties.
d
Alkali‐refined oil may have its acid value adjusted to other limits for specific uses. In such cases the value should be agreed
upon by the interested parties.
e
Or to be agreed between the interested parties.
f
The iodine value and saponification value can also be obtained from the composition of fatty acids.
g
Raw or refined linseed oil with an iodine value over 190 should be designated “High iodine value linseed oil”. The Hanus
method, sometimes used for this test, gives different results to the Wijs method; if it is used by agreement between the
interested parties, prior agreement on specification limits is essential.
5 Sampling
Take a representative sample of the oil in accordance with ISO 5555.
Prepare the sample in accordance with ISO 661.
6 Clarity
6.1 Raw oil
Heat a well‐mixed test portion to 65 °C and examine it immediately for the presence of insoluble
impurities.
© ISO 2018 – All rights reserved
ISO/FDIS 150:2018(E)
6.2 Alkali-refined, acid-refined and boiled oil
Keep a well‐mixed test portion at 15 °C to 20 °C for 24 h and then examine it for the presence of
sediment and for other insoluble matter.
7 Phosphoric acid test (PAT value) (for raw linseed oil only)
7.1 Principle
Thorough mixing of a test portion with 85 % (mass fraction) orthophosphoric acid. Separation of the
precipitated material by centrifuging and washing free of oil with acetone, drying and weighing.
Reporting the percentage by mass as the PAT value.
7.2 Reagents
7.2.1 Orthophosphoric acid, 85 % (mass fraction), ρ = 1,7 g/ml.
7.2.2 Acetone.
7.2.3 Filter aid, of the diatomaceous type.
7.3 Apparatus
Ordinary laboratory apparatus and glassware together with the following.
7.3.1 Sintered glass filter crucibles, of porosity grade P 16 (pore size index 10 μm to 16 μm in
accordance with ISO 4793) and of capacity 30 ml.
The crucibles shall be cleaned periodically with cleaning solution. It is desirable to test the filtration
rate of each crucible with pure acetone and discard any that cannot be cleaned to give satisfactory
filtration rates.
7.3.2 Agitator, consisting of a horizontal shaft suitably supported and fitted with clamps or a
clamping device for holding the pear‐shaped centrifuge tubes.
The tubes are held in such a manner that, when the shaft rotates, the tubes are tipped end over end,
thus allowing the liquid content of the tube to mix as it flows from one end of the tube to the other. The
−1
shaft is rotated mechanically by any means which allows a frequency of (16 ± 2) min .
7.3.3 Centrifuge tubes, of capacity 100 ml, pear‐shaped as shown in Figure 1, fitted with a stopper.
Dimensions in millimetres
© ISO 2018 – All rights reserved
Deleted:
Formatted: Font:
Key
1 sandblasted spot (for marking)
Figure 1 — Pear-shaped centrifuge tube
7.3.4 Centrifuge, capable of holding two or more tubes.
It should be possible to control the rotational frequency of the centrifuge so as to give a relative
centrifugal acceleration of 500 g to 800 g at the tips of the tube (see Table 2), where g is the standard
n n n
acceleration due to gravity.
a
Table 2 — Rotational frequencies applicable to centrifuges of various diameters of swing
Diameter of swing Rotational frequency corresponding to a Rotational frequency corresponding to a
relative centrifugal acceleration of 500 g relative centrifugal acceleration of 800 g
n n
−1 −1
mm min min
300 1 727 2 184
320 1 672 2 115
340 1 622 2 052
360 1 576 1 994
380 1 534 1 941
400 1 496 1 892
420 1 460 1 846
440 1 426 1 804
460 1 395 1 764
© ISO 2018 – All rights reserved
ISO/FDIS 150:2018(E)
480 1 365 1 727
500 1 338 1 692
a
The rotational frequency is calculated from the formula
c
n1346
d
where
c is the relative centrifugal acceleration, expressed as a multiple of the standard acceleration of free fall, g;
d is the diameter of swing, in millimetres;
n is the rotational frequency, expressed in revolutions per minute.
7.3.5 Pipette, of capacity 1 ml, graduated in 0,01 ml, complying with the requirements of ISO 835.
7.3.6 Desiccator, containing an efficient desiccant.
Anhydrous calcium sulfate, anhydrous calcium chloride and silica gel are satisfactory.
7.4 Preparation of the sample
Allow the sample to reach room temperature (23 ± 2) °C and then shake or mi
...

NORME ISO
INTERNATIONALE 150
Troisième édition
2018-11
Huiles de lin brutes, raffinées et
cuites, pour peintures et vernis —
Spécifications et méthodes d'essai
Raw, refined and boiled linseed oil for paints and varnishes —
Specifications and methods of test
Numéro de référence
©
ISO 2018
DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2018
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]
Fax: [phone]
E-mail: [e-mail]
Web: www.iso.org
Publié en Suisse
ii © ISO 2018 – Tous droits réservés

Sommaire Page
Avant-propos .iv
1 Domaine d’application . 1
2 Références normatives . 1
3 Termes et définitions . 1
4 Caractéristiques requises et leurs tolérances . 2
5 Échantillonnage . 4
6 Limpidité. 4
6.1 Huile brute . 4
6.2 Huiles raffinée à l’alcali, raffinée à l’acide et cuite . 4
7 Essai à l’acide phosphorique — Indice PAT (exclusivement pour l’huile de lin brute) .4
7.1 Principe . 4
7.2 Réactifs . 5
7.3 Appareillage. 5
7.4 Préparation de l’échantillon . 7
7.5 Mode opératoire . 7
7.6 Expression des résultats . 8
7.7 Fidélité . 9
7.7.1 Répétabilité . 9
7.7.2 Reproductibilité . 9
8 Évaluation de la cassure dans l’huile de lin raffinée aux alcalis . 9
8.1 Généralité . 9
8.2 Principe . 9
8.3 Réactif . 9
8.4 Appareillage. 9
8.5 Mode opératoire . 9
8.6 Expression des résultats .10
9 Rapport d’essai .10
Annexe A (informative) Valeurs normales de la teneur en acides gras de l’huile de lin brute .11
Avant-propos
L'ISO (Organisation internationale de normalisation) est une fédération mondiale d'organismes
nationaux de normalisation (comités membres de l'ISO). L'élaboration des Normes internationales est
en général confiée aux comités techniques de l'ISO. Chaque comité membre intéressé par une étude
a le droit de faire partie du comité technique créé à cet effet. Les organisations internationales,
gouvernementales et non gouvernementales, en liaison avec l'ISO participent également aux travaux.
L'ISO collabore étroitement avec la Commission électrotechnique internationale (IEC) en ce qui
concerne la normalisation électrotechnique.
Les procédures utilisées pour élaborer le présent document et celles destinées à sa mise à jour sont
décrites dans les Directives ISO/IEC, Partie 1. Il convient, en particulier, de prendre note des différents
critères d'approbation requis pour les différents types de documents ISO. Le présent document a été
rédigé conformément aux règles de rédaction données dans les Directives ISO/IEC, Partie 2 (voir www
.iso .org/directives).
L'attention est attirée sur le fait que certains des éléments du présent document peuvent faire l'objet de
droits de propriété intellectuelle ou de droits analogues. L'ISO ne saurait être tenue pour responsable
de ne pas avoir identifié de tels droits de propriété et averti de leur existence. Les détails concernant
les références aux droits de propriété intellectuelle ou autres droits analogues identifiés lors de
l'élaboration du document sont indiqués dans l'Introduction et/ou dans la liste des déclarations de
brevets reçues par l'ISO (voir www .iso .org/brevets).
Les appellations commerciales éventuellement mentionnées dans le présent document sont données
pour information, par souci de commodité, à l’intention des utilisateurs et ne sauraient constituer un
engagement.
Pour une explication de la nature volontaire des normes, la signification des termes et expressions
spécifiques de l'ISO liés à l'évaluation de la conformité, ou pour toute information au sujet de l'adhésion
de l'ISO aux principes de l’Organisation mondiale du commerce (OMC) concernant les obstacles
techniques au commerce (OTC), voir www .iso .org/avant -propos.
Le présent document a été élaboré par le comité technique ISO/TC 35, Peintures et vernis.
Cette troisième édition annule et remplace la deuxième édition (ISO 150:2006), qui a fait l’objet d’une
révision technique.
Les principales modifications par rapport à l’édition précédente sont les suivantes:
— la détermination de la composition des acides gras conformément à l’ISO 12966 a été spécifiée;
— l’ISO 2811-3 (méthode par oscillation) a été ajoutée pour la détermination de la masse volumique;
— la détermination de la durée de séchage a été supprimée;
— la référence à l’utilisation du système d’échelle Lovibond en tant qu’alternative à l’échelle de couleurs
de Gardner a été supprimée car la méthode visuelle est trop imprécise;
— l’échantillonnage conformément à l’ISO 15528 a été remplacé par l’échantillonnage conformément à
l’ISO 5555;
— la préparation des échantillons conformément à l’ISO 661 a été ajoutée;
— les valeurs normales de la teneur en acides gras ont été révisées;
— les références normatives de l’Article 2 ont été mises à jour et des modifications rédactionnelles ont
été apportées au texte.
Il convient que l’utilisateur adresse tout retour d’information ou toute question concernant le présent
document à l’organisme national de normalisation de son pays. Une liste exhaustive desdits organismes
se trouve à l’adresse www .iso .org/fr/members .html.
iv © ISO 2018 – Tous droits réservés

NORME INTERNATIONALE ISO 150:2018(F)
Huiles de lin brutes, raffinées et cuites, pour peintures et
vernis — Spécifications et méthodes d'essai
1 Domaine d’application
Le présent document spécifie les exigences et les méthodes d’essai correspondantes applicables aux
huiles de lin brutes, raffinées et cuites pour peintures et vernis.
2 Références normatives
Les documents suivants sont cités dans le texte de sorte qu’ils constituent, pour tout ou partie de leur
contenu, des exigences du présent document. Pour les références datées, seule l’édition citée s’applique.
Pour les références non datées, la dernière édition du document de référence s'applique (y compris les
éventuels amendements).
ISO 660, Corps gras d'origines animale et végétale — Détermination de l'indice d'acide et de l'acidité
ISO 661, Corps gras d'origines animale et végétale — Préparation de l'échantillon pour essai
ISO 835, Verrerie de laboratoire — Pipettes graduées
ISO 2114, Plastiques (résines de polyesters) et peintures et vernis (liants) — Détermination de l'indice
d'acide partiel et de l'indice d'acide total
ISO 2811-1, Peintures et vernis — Détermination de la masse volumique — Partie 1: Méthode pycnométrique
ISO 2811-3, Peintures et vernis — Détermination de la masse volumique — Partie 3: Méthode par oscillation
ISO 3681, Liants pour peintures et vernis — Détermination de l’indice de saponification — Méthode
titrimétrique
ISO 3961, Corps gras d'origines animale et végétale — Détermination de l'indice d'iode
ISO 4618, Peintures et vernis — Termes et définitions
ISO 4630, Liquides clairs — Évaluation de la couleur au moyen de l'échelle de couleur Gardner
ISO 4793, Filtres frittés de laboratoire — Échelle de porosité — Classification et désignation
ISO 5555, Corps gras d'origines animale et végétale — Échantillonnage
ISO 5661, Produits pétroliers — Hydrocarbures liquides — Détermination de l'indice de réfraction
ISO 6320, Corps gras d'origines animale et végétale — Détermination de l'indice de réfraction
ISO 8534, Corps gras d'origines animale et végétale — Détermination de la teneur en eau — Méthode de
Karl Fischer (sans pyridine)
ISO 12966 (toutes les parties), Corps gras d'origines animale et végétale — Chromatographie en phase
gazeuse des esters méthyliques d'acides gras
3 Termes et définitions
Pour les besoins du présent document, les termes et définitions de l’ISO 4618 ainsi que les suivants
s’appliquent.
L’ISO et l’IEC tiennent à jour des bases de données terminologiques destinées à être utilisées en
normalisation, consultables aux adresses suivantes:
— ISO Online browsing platform: disponible à l’adresse https: //www .iso .org/obp
— IEC Electropedia: disponible à l’adresse http: //www .electropedia .org/
3.1
huile de lin brute
huile obtenue uniquement à partir de graines de lin mûres (Linum usitatissimum L.)
3.2
huile de lin raffinée à l’acide
huile obtenue par raffinage de l’huile de lin brute avec de l’acide
3.3
huile de lin raffinée aux alcalis
huile obtenue par raffinage de l’huile de lin brute avec une solution d’hydroxyde de sodium ou une autre
solution alcaline
3.4
huile de lin cuite
huile de lin obtenue par l’incorporation de siccatifs dans l’huile de lin brute ou raffinée et par chauffage
avec ou sans souffle d’air ou d’oxygène
3.5
cassure
séparation des matières mucilagineuses (insolubles) qui se produit lors du chauffage de certaines huiles
végétales non raffinées
Note 1 à l'article: Lorsque la séparation se produit, l’huile est dite «cassée». Les matières insolubles sont
également dénommées «cassures».
4 Caractéristiques requises et leurs tolérances
Les huiles de lin brutes, raffinées et cuites, doivent avoir les caractéristiques spécifiées dans le
Tableau 1.
2 © ISO 2018 – Tous droits réservés

Tableau 1 — Caractéristiques exigées et leurs tolérances
Caractéristiques Exigences Méthode
d’essai
Huile de lin Huile de lin Huile de lin Huile de lin
brute raffinée raffinée cuite
aux alcalis à l’acide
Masse ρ 0,924 à 0,931 0,924 à 0,931 0,924 à 0,931 0,926 à 0,948 ISO 2811-1 ou
a
volumique ISO 2811-3
g/ml
Couleur maximale 13 4 6 À convenir ISO 4630
sur l’échelle entre les parties
Gardner intéressées
b
Couleur sur — — — — —
l’échelle
...