Analysis of soaps -- Determination of total alkali content and total fatty matter content

This document specifies a method for the simultaneous determination of the total alkali content and the total fatty matter content of soaps (including liquid soaps), excluding compounded products.

Analyse des savons -- Détermination des teneurs en alcali total et en matière grasse totale

Le présent document spécifie une méthode de détermination simultanée des teneurs en alcali total et en matičre grasse totale des savons (y compris des savons liquides), ŕ l'exclusion des compositions.

Analiza mila - Določevanje celotnih alkalij in celotnih maščobnih snovi

General Information

Status
Published
Publication Date
27-Feb-2020
Current Stage
6060 - International Standard published
Start Date
18-Jan-2020
Completion Date
28-Feb-2020

RELATIONS

Buy Standard

Standard
ISO 685:2020 - Analysis of soaps -- Determination of total alkali content and total fatty matter content
English language
5 pages
sale 15% off
Preview
sale 15% off
Preview
Standard
ISO 685:2020
English language
9 pages
sale 10% off
Preview
sale 10% off
Preview

e-Library read for
1 day
Standard
ISO 685:2020 - Analyse des savons -- Détermination des teneurs en alcali total et en matiere grasse totale
French language
6 pages
sale 15% off
Preview
sale 15% off
Preview

Standards Content (sample)

INTERNATIONAL ISO
STANDARD 685
Second edition
2020-02
Analysis of soaps — Determination
of total alkali content and total fatty
matter content
Analyse des savons — Détermination des teneurs en alcali total et en
matière grasse totale
Reference number
ISO 685:2020(E)
ISO 2020
---------------------- Page: 1 ----------------------
ISO 685:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2020

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: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 685:2020(E)
Contents Page

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

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

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

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

4 Principle ........................................................................................................................................................................................................................ 1

5 Reagents ........................................................................................................................................................................................................................ 2

6 Apparatus ..................................................................................................................................................................................................................... 2

7 Sampling ........................................................................................................................................................................................................................ 2

8 Procedure..................................................................................................................................................................................................................... 2

8.1 General ........................................................................................................................................................................................................... 2

8.2 Test portion ................................................................................................................................................................................................ 3

8.3 Determination ......................................................................................................................................................................................... 3

8.3.1 General...................................................................................................................................................................................... 3

8.3.2 Determination of total alkali content ............................................................................................................. 3

8.3.3 Determination of total fatty matter content .................. ........................................................................... 4

9 Expression of results ........................................................................................................................................................................................ 4

9.1 Total alkali content .............................................................................................................................................................................. 4

9.1.1 Method of calculation and formulae ............................................................................................................... 4

9.1.2 Reproducibility .................................................................................................................................................................. 5

9.2 Total fatty matter content .............................................................................................................................................................. 5

9.2.1 Method of calculation and formula .................................................................................................................. 5

9.2.2 Reproducibility .................................................................................................................................................................. 5

10 Test report ................................................................................................................................................................................................................... 5

© ISO 2020 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO 685:2020(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).

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 91, Surface active agents.

This second edition cancels and replaces the first edition (ISO 685:1975), which has been technically

revised.
The main changes compared to the previous edition are as follows:
— “liquid soaps” has been added in the Scope;

— the sentence “This method for the determination of total alkali is not applicable to coloured soaps if

the colour interferes with the methyl orange end-point.” has been deleted from the Scope;

— in 8.3.1, “until there is an excess of about 5 ml” has been changed to “until there is an excess of

about 10 ml”;

— in 8.3.1, “Repeat the shaking until the aqueous layer has become clear” has been changed to “Repeat

the shaking until the water phase is clearly separated from the organic phase (if the two-phase layer

is not obvious, the emulsification can be broken by adding ethanol that does not exceed the volume

of the water phase)”;

— in 8.3.2, the sentence “If the soap colour interferes with the methyl orange end-point, a pH meter can

be used to indicate the end point (pH value 3,1 to 4.4, maintain 10 s) during titration.” has been added.

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 2020 – All rights reserved
---------------------- Page: 4 ----------------------
INTERNATIONAL STANDARD ISO 685:2020(E)
Analysis of soaps — Determination of total alkali content
and total fatty matter content
1 Scope

This document specifies a method for the simultaneous determination of the total alkali content and

the total fatty matter content of soaps (including liquid soaps), excluding compounded products.

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 3819, Laboratory glassware — Beakers
ISO 8212, Soaps and detergents — Techniques of sampling during manufacture
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.1
total alkali

sum of the alkali bases combined as soap with fatty and rosin acids, as well as those corresponding to

free alkali metal hydroxides or carbonates and to any silicates present which will be titrated under the

test conditions

Note 1 to entry: The results are expressed as a percentage mass fraction of either sodium hydroxide

...

SLOVENSKI STANDARD
SIST ISO 685:2020
01-junij-2020
Analiza mila - Določevanje celotnih alkalij in celotnih maščobnih snovi

Analysis of soaps - Determination of total alkali content and total fatty matter content

Analyse des savons - Détermination des teneurs en alcali total et en matière grasse

totale
Ta slovenski standard je istoveten z: ISO 685:2020
ICS:
71.100.70 Kozmetika. Toaletni Cosmetics. Toiletries
pripomočki
SIST ISO 685:2020 en

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

---------------------- Page: 1 ----------------------
SIST ISO 685:2020
---------------------- Page: 2 ----------------------
SIST ISO 685:2020
INTERNATIONAL ISO
STANDARD 685
Second edition
2020-02
Analysis of soaps — Determination
of total alkali content and total fatty
matter content
Analyse des savons — Détermination des teneurs en alcali total et en
matière grasse totale
Reference number
ISO 685:2020(E)
ISO 2020
---------------------- Page: 3 ----------------------
SIST ISO 685:2020
ISO 685:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2020

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: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved
---------------------- Page: 4 ----------------------
SIST ISO 685:2020
ISO 685:2020(E)
Contents Page

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

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

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

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

4 Principle ........................................................................................................................................................................................................................ 1

5 Reagents ........................................................................................................................................................................................................................ 2

6 Apparatus ..................................................................................................................................................................................................................... 2

7 Sampling ........................................................................................................................................................................................................................ 2

8 Procedure..................................................................................................................................................................................................................... 2

8.1 General ........................................................................................................................................................................................................... 2

8.2 Test portion ................................................................................................................................................................................................ 3

8.3 Determination ......................................................................................................................................................................................... 3

8.3.1 General...................................................................................................................................................................................... 3

8.3.2 Determination of total alkali content ............................................................................................................. 3

8.3.3 Determination of total fatty matter content .................. ........................................................................... 4

9 Expression of results ........................................................................................................................................................................................ 4

9.1 Total alkali content .............................................................................................................................................................................. 4

9.1.1 Method of calculation and formulae ............................................................................................................... 4

9.1.2 Reproducibility .................................................................................................................................................................. 5

9.2 Total fatty matter content .............................................................................................................................................................. 5

9.2.1 Method of calculation and formula .................................................................................................................. 5

9.2.2 Reproducibility .................................................................................................................................................................. 5

10 Test report ................................................................................................................................................................................................................... 5

© ISO 2020 – All rights reserved iii
---------------------- Page: 5 ----------------------
SIST ISO 685:2020
ISO 685:2020(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).

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 91, Surface active agents.

This second edition cancels and replaces the first edition (ISO 685:1975), which has been technically

revised.
The main changes compared to the previous edition are as follows:
— “liquid soaps” has been added in the Scope;

— the sentence “This method for the determination of total alkali is not applicable to coloured soaps if

the colour interferes with the methyl orange end-point.” has been deleted from the Scope;

— in 8.3.1, “until there is an excess of about 5 ml” has been changed to “until there is an excess of

about 10 ml”;

— in 8.3.1, “Repeat the shaking until the aqueous layer has become clear” has been changed to “Repeat

the shaking until the water phase is clearly separated from the organic phase (if the two-phase layer

is not obvious, the emulsification can be broken by adding ethanol that does not exceed the volume

of the water phase)”;

— in 8.3.2, the sentence “If the soap colour interferes with the methyl orange end-point, a pH meter can

be used to indicate the end point (pH value 3,1 to 4.4, maintain 10 s) during titration.” has been added.

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 2020 – All rights reserved
---------------------- Page: 6 ----------------------
SIST ISO 685:2020
INTERNATIONAL STANDARD ISO 685:2020(E)
Analysis of soaps — Determination of total alkali content
and total fatty matter content
1 Scope

This document specifies a method for the simultaneous determination of the total alkali content and

the total fatty matter content of soaps (including liquid soaps), excluding compounded products.

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 3819, Laboratory glassware — Beakers
ISO 8212, Soaps and detergents — Techniques of sampling during manufacture
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https:// ww
...

NORME ISO
INTERNATIONALE 685
Deuxième édition
2020-02
Analyse des savons — Détermination
des teneurs en alcali total et en
matière grasse totale
Analysis of soaps — Determination of total alkali content and total
fatty matter content
Numéro de référence
ISO 685:2020(F)
ISO 2020
---------------------- Page: 1 ----------------------
ISO 685:2020(F)
DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2020

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.: +41 22 749 01 11
Fax: +41 22 749 09 47
E-mail: copyright@iso.org
Web: www.iso.org
Publié en Suisse
ii © ISO 2020 – Tous droits réservés
---------------------- Page: 2 ----------------------
ISO 685:2020(F)
Sommaire Page

Avant-propos ..............................................................................................................................................................................................................................iv

1 Domaine d’application ................................................................................................................................................................................... 1

2 Références normatives ................................................................................................................................................................................... 1

3 Termes et définitions ....................................................................................................................................................................................... 1

4 Principe .......................................................................................................................................................................................................................... 1

5 Réactifs ........................................................................................................................................................................................................................... 2

6 Appareillage .............................................................................................................................................................................................................. 2

7 Échantillonnage ..................................................................................................................................................................................................... 2

8 Mode opératoire.................................................................................................................................................................................................... 3

8.1 Généralités .................................................................................................................................................................................................. 3

8.2 Prise d’essai ............................................................................................................................................................................................... 3

8.3 Détermination ......................................................................................................................................................................................... 3

8.3.1 Généralités ............................................................................................................................................................................ 3

8.3.2 Détermination de la teneur en alcali total ................................................................................................. 4

8.3.3 Détermination de la teneur en matière grasse totale ...................................................................... 4

9 Expression des résultats............................................................................................................................................................................... 4

9.1 Teneur en alcali total .......................................................................................................................................................................... 4

9.1.1 Méthode de calcul et formules ............................................................................................................................. 4

9.1.2 Reproductibilité ................................................................................................................................................................ 5

9.2 Teneur en matière grasse totale ............................................................................................................................................... 5

9.2.1 Méthode de calcul et formule................................................................................................................................ 5

9.2.2 Reproductibilité ................................................................................................................................................................ 5

10 Rapport d’essai ....................................................................................................................................................................................................... 6

© ISO 2020 – Tous droits réservés iii
---------------------- Page: 3 ----------------------
ISO 685:2020(F)
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 91, Agents de surface.

Cette deuxième édition annule et remplace la première édition (ISO 685:1975), qui a fait l’objet d’une

révision technique.

Les principales modifications par rapport à l’édition précédente sont les suivantes:

— les «savons liquides» ont été ajoutés au domaine d’application;

— la phrase «La méthode de détermination de la teneur en alcali total n’est pas applicable aux savons

colorés si la couleur gêne l’appréciation du virage du méthylorange» a été supprimée du domaine

d’application;

— en 8.3.1, «jusqu’à l’obtention d’un excès de 5 ml environ» a été remplacé par «jusqu’à l’obtention d’un

excès de 10 ml environ»;

— en 8.3.1, «Continuer à agiter jusqu’à ce que la couche aqueuse devienne claire» a été remplacé par

«Reprendre l’agitation jusqu’à ce que la phase aqueuse soit nettement séparée de la phase organique

(si la séparation entre les deux phases n’est pas complète (claire limpide), l’émulsion peut être

rompue en ajoutant de l’éthanol dans des proportions qui ne dépassent pas le volume de la phase

aqueuse)»;

— en 8.3.2, la phrase «Si la couleur du savon gêne l’appréciation du virage du méthylorange, un pH-

mètre peut être utilisé pour indiquer le virage (valeur du pH comprise entre 3,1 et 4,4, maintenue

pendant 10 s) pendant le titrage» a été ajoutée.
iv © ISO 2020 – Tous droits réservés
---------------------- Page: 4 ----------------------
ISO 685:2020(F)

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.
© ISO 2020 – Tous droits réservés v
---------------------- Page: 5 ----------------------
NORME INTERNATIONALE ISO 685:2020(F)
Analyse des savons — Détermination des teneurs en alcali
total et en matière grasse totale
1 Domaine d’application

Le présent document spécifie une méthode de détermination simultanée des teneurs en alcali total et

en matière grasse totale des savons (y compris des savons liquides), à l’exclusion des compositions.

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 3819, Verrerie de laboratoire — Béchers

ISO 8212, Savons et détergents — Techniques de l'échantillonnage en cours de fabrication

3 Termes et définitions

Pour les besoins du présent document, les termes et définitions 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
alcali total

somme des bases alcalines combinées, sous forme de savon, aux acides gras et résiniques, ainsi que

celles correspondant aux hydroxydes métalliques alcalins ou carbonates métalliques alcalins libres, et,

éventuellement, aux silicates qui seront titrés dans les conditions d’essai

Note 1 à l'article: Les résultats sont exprimés sous forme de fraction massique en pourcentage soit d’hydroxyde

de sodium (NaOH), soit d’hydroxyde de potassium (KOH) selon qu’il s’agit de savons sodiques ou potassiques.

3.2
matière grasse totale
mat
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.