SIST ISO 456:1995

• Abstract:

  The determination may be carried out in two different ways by the ethanol method or the barium chloride method. In the first case the soap is dissolved in neutralized ethanol, and the free caustic alkali is titrated with an ewthanol solution of hydrochloric acid. The second way includes precipitating of soap and carbonate with barium chloride and determining of the residual alkalinity of the solution, representing the alkalinity of the free potassium hydroxide.

• Status: Published
• Publication Date: 31-Jul-1995
• ICS: 71.100.40 - Surface active agents
• Technical Committee: KDS - Cosmetics, chemical disinfectants and surface active agents
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Aug-1995
• Due Date: 01-Aug-1995
• Completion Date: 01-Aug-1995
• Ref Project: ISO 456:1973 - Surface active agents — Analysis of soaps — Determination of free caustic alkali

Overview

ISO 456:1973 - "Surface active agents - Analysis of soaps - Determination of free caustic alkali" specifies two validated laboratory methods for measuring free caustic alkali in commercial soaps. The standard covers scope, reagents, apparatus, stepwise procedures and expression of results for the ethanol (Method A) and barium chloride (Method B) techniques. It applies to ordinary commercial soaps (not compounded products) and was published by ISO/TC 91 in 1973.

Key topics and technical requirements

• Two alternative methods
  • Method A (Ethanol method): dissolve soap in neutralized absolute ethanol, remove CO2 by reflux, then titrate free alkali with an ethanolic hydrochloric acid solution. Applicable mainly to sodium soaps of ordinary quality; not suitable for potassium soaps due to potassium carbonate solubility in ethanol.
  • Method B (Barium chloride method): precipitate soap and carbonate with barium chloride in an ethanol/water medium, then titrate the residual alkalinity (representing free KOH) with hydrochloric acid. Recommended for soft potassium soaps and mixed sodium/potassium soaps.
• Reagents and concentrations
  • Absolute ethanol (ρ = 0.792 g/ml), ethanolic KOH ~0.1 N, ethanolic HCl ~0.1 N, phenolphthalein indicator in ethanol, and a 60% (V/V) ethanol solution for Method B.
• Apparatus
  • Standard laboratory glassware: 500 ml flask (or conical wide-neck flask), reflux condenser, analytical balance.
• Procedure highlights
  • Removal of CO2 by gentle reflux, careful neutralization of ethanol prior to sample dissolution (Method A), controlled precipitation with barium chloride (Method B), and endpoint detection with phenolphthalein/thymol-blue indicator mixtures.
• Results and reporting
  • Results may be expressed as percentage NaOH (for sodium soaps) or KOH (for potassium soaps), or as milliequivalents/kg. Calculations use titrant volume (V), titrant normality (T) and test portion mass (m). Reproducibility: Method A ±0.02 (absolute), Method B ±0.05 (absolute).
  • Test report must state the method used, results and expression, any unusual observations, and any optional operations performed.

Applications

• Quality control in soap manufacturing to quantify residual caustic alkali that affects product safety, skin irritation potential and finished-product quality.
• Regulatory compliance and specification verification for sodium and potassium soap products.
• Troubleshooting production issues such as incomplete neutralization or saponification.

Who should use this standard

• Laboratory analysts in personal care and detergent manufacturing.
• Quality assurance teams in soap production plants.
• R&D chemists developing soap formulations.
• Regulatory bodies and conformity assessment laboratories assessing soap safety and composition.

Related standards

• ISO 456:1973 is part of ISO/TC 91 work on surface active agents. For broader surfactant and soap testing you may consult other ISO documents produced by ISO/TC 91 (refer to your national ISO member body for the latest related standards).

SLOVENSKI STANDARD
01-avgust-1995
3RYUãLQVNRDNWLYQHVQRYL$QDOL]HPLO'RORþHYDQMHSURVWLKMHGNLKDONDOLM
Surface active agents -- Analysis of soaps -- Determination of free caustic alkali
Agents de surface -- Analyse des savons -- Détermination de la teneur en alcali libre
caustique
Ta slovenski standard je istoveten z: ISO 456:1973
ICS:
71.100.40 Površinsko aktivna sredstva Surface active agents
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

INTERNATIONAL STANDARD
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION l MEXAYHAPOAHAR OPTAHM3AIWl l-IO CTAHAAPTti3AIJkiU .ORGANISATION INTERNATIONALE DE NORMALISATION
Surface active agents - Analysis of soaps -
Determination of free caustic alkali
First edition - 1973-03-01
UDC 661.185 Ref. No. IS0 456-1973 (E)
determination of content, alkalies.
Descriptors : surfactants, soaps, chemical analysis,
Price based on 3 pages
IS0 (the International Organization for Standardization) is a worldwide federation
of national standards institutes (IS0 Member Bodies). The work of developing
International Standards is carried out through IS0 Technical Committees. Every
Member Body interested in a subject for which a Technical Committee has been set
up 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.
Draft International Standards adopted by the Technical Committees are circulated
to the Member Bodies for approval before their acceptance as International
Standards by the IS0 Council.
Prior to 1972, the results of the work of the Technical Committees were published
as IS0 Recommendations; these documents are now in the process of being
transformed into International Standards. As part of this process, International
Standard IS0 456 replaces IS0 Recommendation R 456-1965 drawn up by
Technical Committee lSO/TC 91, Surface active agents.
The Member Bodies of the following countries approved the Recommendation :
Argentina Hungary Poland
Austria Italy Portugal
Japan Romania
Canada
Korea, Rep. of Spain
Chile
Morocco Switzerland
Colombia
Czechoslovakia Netherlands United Kingdom
Yugoslavia
France New Zealand
Germany Norway
The Member Body of the following country expressed disapproval of the
technical grounds :
Recommendation on
India
0 International Organization for Standardization, 1973 l
Printed in Switzerland
IS0 456-1973 (E)
INTERNATIONAL STANDARD
Surface active agents - Analysis of soaps -
Determination of free caustic alkali
4 METHOD A (Ethanol method)
0 INTRODUCTION
As soaps usually contain a small amount of unsaponified
4.1 Principle
neutral fat, there is no perfect procedure for determining
free caustic alkali because, when the sample of soap is
The soap is dissolved in neutralized ethanol, and the free
dissolved, a neutral fat is more or less saponified by any
caustic alkali is titrated with an ethanolic solution of
free caustic alkali that is present.
hydrochloric acid.
Both methods described in this International Standard are
therefore of a conventional nature.
4.2 Reagents
Conventionally, free caustic alkali is expressed as The water used shall be distilled water or water of at least
equivalent purity.
--
sodium hydroxide (NaOH) for sodium soaps and
The reagents shall have the following properties :
--
potassium hydroxide (KOH) for potassium soaps.
4.2.1 Ethanol, absolute, p2c = 0,792 g/ml.
1 SCOPE
4.2.2 Potassium hydroxide, ethanolic solution,
approximately 0,l N.
This International Standard specifies two methods of
determining free caustic alkali in commercial soaps,
4.2.3 Hydrochloric acid, standard ethanolic solution,
excluding compounded products :
approximately 0,l N.
-- Method A, ethanol method;
4.2.4 Phenolphthalein solution, 1 g in 100 ml of 95 %
- Method B, barium chloride method.
(V/V) ethanol.
4.3 Apparatus
2 FIELD OF APPLICATION
Ordinary laboratory apparatus, and in particular
2.1 Method A (ethanol method) should be applied only to
sodium soaps of ordinary quality, as the presence of certain
4.3.1 Flask of approximately 500 ml capacity, that can be
additives brings in sources of error. It is not applicable to
fitted to a reflux condenser.
potassium soaps, because of the solubility of potassium
carbonate in ethanol.
4.3.2 Reflux condenser.
2.2 Method B (barium chloride method) should be applied
4.3.3 Analytical balance.
to all soft potassium soaps or mixed sodium and potassium
soaps. The application of this method to sodium soaps of
ordinary quality, which usually do not contain sufficient
4.4 Proc
...

INTERNATIONAL STANDARD
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION l MEXAYHAPOAHAR OPTAHM3AIWl l-IO CTAHAAPTti3AIJkiU .ORGANISATION INTERNATIONALE DE NORMALISATION
Surface active agents - Analysis of soaps -
Determination of free caustic alkali
First edition - 1973-03-01
UDC 661.185 Ref. No. IS0 456-1973 (E)
determination of content, alkalies.
Descriptors : surfactants, soaps, chemical analysis,
Price based on 3 pages
IS0 (the International Organization for Standardization) is a worldwide federation
of national standards institutes (IS0 Member Bodies). The work of developing
International Standards is carried out through IS0 Technical Committees. Every
Member Body interested in a subject for which a Technical Committee has been set
up 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.
Draft International Standards adopted by the Technical Committees are circulated
to the Member Bodies for approval before their acceptance as International
Standards by the IS0 Council.
Prior to 1972, the results of the work of the Technical Committees were published
as IS0 Recommendations; these documents are now in the process of being
transformed into International Standards. As part of this process, International
Standard IS0 456 replaces IS0 Recommendation R 456-1965 drawn up by
Technical Committee lSO/TC 91, Surface active agents.
The Member Bodies of the following countries approved the Recommendation :
Argentina Hungary Poland
Austria Italy Portugal
Japan Romania
Canada
Korea, Rep. of Spain
Chile
Morocco Switzerland
Colombia
Czechoslovakia Netherlands United Kingdom
Yugoslavia
France New Zealand
Germany Norway
The Member Body of the following country expressed disapproval of the
technical grounds :
Recommendation on
India
0 International Organization for Standardization, 1973 l
Printed in Switzerland
IS0 456-1973 (E)
INTERNATIONAL STANDARD
Surface active agents - Analysis of soaps -
Determination of free caustic alkali
4 METHOD A (Ethanol method)
0 INTRODUCTION
As soaps usually contain a small amount of unsaponified
4.1 Principle
neutral fat, there is no perfect procedure for determining
free caustic alkali because, when the sample of soap is
The soap is dissolved in neutralized ethanol, and the free
dissolved, a neutral fat is more or less saponified by any
caustic alkali is titrated with an ethanolic solution of
free caustic alkali that is present.
hydrochloric acid.
Both methods described in this International Standard are
therefore of a conventional nature.
4.2 Reagents
Conventionally, free caustic alkali is expressed as The water used shall be distilled water or water of at least
equivalent purity.
--
sodium hydroxide (NaOH) for sodium soaps and
The reagents shall have the following properties :
--
potassium hydroxide (KOH) for potassium soaps.
4.2.1 Ethanol, absolute, p2c = 0,792 g/ml.
1 SCOPE
4.2.2 Potassium hydroxide, ethanolic solution,
approximately 0,l N.
This International Standard specifies two methods of
determining free caustic alkali in commercial soaps,
4.2.3 Hydrochloric acid, standard ethanolic solution,
excluding compounded products :
approximately 0,l N.
-- Method A, ethanol method;
4.2.4 Phenolphthalein solution, 1 g in 100 ml of 95 %
- Method B, barium chloride method.
(V/V) ethanol.
4.3 Apparatus
2 FIELD OF APPLICATION
Ordinary laboratory apparatus, and in particular
2.1 Method A (ethanol method) should be applied only to
sodium soaps of ordinary quality, as the presence of certain
4.3.1 Flask of approximately 500 ml capacity, that can be
additives brings in sources of error. It is not applicable to
fitted to a reflux condenser.
potassium soaps, because of the solubility of potassium
carbonate in ethanol.
4.3.2 Reflux condenser.
2.2 Method B (barium chloride method) should be applied
4.3.3 Analytical balance.
to all soft potassium soaps or mixed sodium and potassium
soaps. The application of this method to sodium soaps of
ordinary quality, which usually do not contain sufficient
4.4 Procedure
+rantities of free caustic alkali to be determined by this
method, is not recommended.
4.4.1 Test portion
Weigh,. to the nearest of 0,Ol gl approximately 5 g of soap.
5 DEFINITION
4.4.2 Determination
free caustic alkali in a soft soap: The quantity of hydroxyl
Pour 200 ml of ethanol (4.2.1) into the flask. Connect to
ion, reported as potassium hydroxide (KOH), which is
the reflux condenser. Bring to a gentle boil and keep at the
found in solution after precipitation with
...

NORME INTERNATIONALE
INTERNATIONAL ORGANIZATION FOR STANDARDlZATlON .MEX~YHAPO~HA(I OPTAHM3AW(I n0 CTAHAAPTM3ALWM~ORGANISATION INTERNATIONALE DE NORMALISATION
Agents de surface - Analyse des savons -
Determination de la teneur en alcali libre caustique
Premihe bdition - 1973-03-01
Rkf. No : IS0 456-1973 (F)
CDU 661.185
Descripteurs : agent de surface, savon, analyse chimique, dosage, alcali.
Prix bask sur 3 pages
AVANT-PROPOS
IS0 (Organisation lnternationale de Normalisation) est une federation mondiale
d’organismes nationaux de normalisation (Comites Membres ISO). L’elaboration de
Normes Internationales est confide aux Comites Techniques ISO. Chaque Comite
Membre intkresse par une etude a le droit de faire partie du Comite Technique
correspondant. Les organisations internationales, gouvernementales et non
gouvernementales, en liaison avec I’ISO, participent egalement aux travaux.
Les Projets de Normes Internationales adopt& par les Comites Techniques sont
soumis aux Comites Membres pour approbation, avant leur acceptation comme
Normes lnternationales par le Conseil de I’ISO.
Avant 1972, les resultats des travaux des Comites Techniques etaient publies
comme Recommandation ISO; maintenant, ces documents sont en tours de
transformation en Normes Internationales. Compte tenu de cette procedure, la
Norme Internationale IS0 456 remplace la Recommandation lSO/R 456-1965
etablie par le Comite Technique ISO/TC 91, Agents de surface.
Les Comites Membres des pays suivants avaient approuve la Recommandation :
Allemagne France Pologne
Argentine Hongr ie Portugal
Autriche Italie Roumanie
Canada Japon Royaume-Uni
Chili Maroc Su isse
Tchecoslovaquie
Colombie Norvege
Coke, Rep. de Nouvelle Zelande Yougoslav ie
Espagne Pays-Bas
Le Comite Membr ‘e du pays suivant avait desapprouve la R ecommandation pour des
raisons techniques
I nde
0 Organisation lnternationale de Normalisation, 1973 l
Imprim en Suisse
NORIVIE INTEWNATIONALE IS0 456-1973 (F)
-
Agents de surface Analyse des savons -
teneur en alcali libre caustique
Dktermination de la
0 INTRODUCTION 4 MiTHODE A (Methode dite a I’ethanol)
Les savons contenant habituellement une petite quantite de
4.1 Principe
matiere grasse neutre insaponifiee, il n’existe pas de mode
operatoire parfait pour doser I’alcali libre caustique, car au
Dissolution de savon dans de l’ethanol neutralise, et titrage
moment de la mise en solution de la prise d’essai du savon,
de I’alcali libre caustique, par une solution ethanolique
la matiere grasse neutre 3st plus ou moins saponifiee par
d’acide chlorhydrique.
I’alcaii libre caustique eventuellement present.
4.2 Rbactifs
Les deux methodes decrites par la prksente Norme
Internationale ont done un caractere conventionnel.
L’eau utilisee doit etre de I’eau distillee ou de l’eau de
purete au moins equivalente.
Par convention, I’alcali libre caustique est exprimk :
Les reactifs doivent repondre aux caracteristiques
_.-
en hydroxyde de sodium (NaOH), pour les savons
suivantes :
sodiques, et
-
en hydroxyde de potassium (KOH), pour les savons 4.2-l Ethanol, absolu, pzO = 0,792 g/ml.
potassiques.
4.2.2 Hydroxyde de potassium, solution ethanolique
environ 0,‘l N.
1 OBJET
4.2.3 A tide chlorh ydrique, solution ethanolique titree
La presente Norme lnternationale specif ie deux methodes
environ 0,l N.
de determination de I’alcali libre caustique dans les savons
commerciaux (a I’exclusion des compositions) :
4.2.4 Phknolph tafe’ine, solution a 1 g dans 100 ml de
- la methode A, dite ~3 YethanoI));
solution d’ethanol a 95 Y/o (V/V).
--
la methode B, dite ((au chlorure de baryum)).
4.3 Appareillage
Materiel courant de laboratoire, et notamment
2 DOMAINE D’APPLICATION
4.3.1 Fiole, de 500 ml environ, pouvant etre adaptee a un
2.1 La mbthode A (dite a I’ethanol) n’est applicable
refrigerant a reflux.
qu’aux savons sodiques de qualite courante, la prksence de
certains produits d’addition apportant des causes d’erreur.
4.3.2 Re’frige’rant P reflux.
Elle n’est pas applicable aux savons potassiques, en raison
de la solubilite du carbonate de potassium dans I’ethanol.
4.3.3 Balance analy tique.
2.2 La mkthode I3 (dite au chlorure de baryum) est
applicable a tous les savons mous de potassium, ou aux
4.4 Mode opkratoire
melanges de savons de sodium et de potassium. II n’est pas
d’appliquer cette methode aux savons
recommande
4.4.1 Prise d’essai
sodiques de qualite courante, qui ne contiennent pas
d’alcali libre caustique en quantites suffisantes pour etre
Peser, a 0,Ol g pres, environ 5 g de savon.
determi nees par cette methode.
4.4.2 Dosage
3 DEFINITION
Verser dans la fiole 200 ml d’ethanol (4.2.1). Adapter au
refrigk-ant a reflux. Porter a deuce ebullition et la
alcali Iibre caustique d’un savon mou : Quantite d’ions
maintenir pendant 5 min, afin d’eliminer le dioxyde de
hydroxyle, exprimee en hydroxyde de potassium (KOH),
carbone. Retirer du refrigerant et laisser refroid
...

NORME INTERNATIONALE
INTERNATIONAL ORGANIZATION FOR STANDARDlZATlON .MEX~YHAPO~HA(I OPTAHM3AW(I n0 CTAHAAPTM3ALWM~ORGANISATION INTERNATIONALE DE NORMALISATION
Agents de surface - Analyse des savons -
Determination de la teneur en alcali libre caustique
Premihe bdition - 1973-03-01
Rkf. No : IS0 456-1973 (F)
CDU 661.185
Descripteurs : agent de surface, savon, analyse chimique, dosage, alcali.
Prix bask sur 3 pages
AVANT-PROPOS
IS0 (Organisation lnternationale de Normalisation) est une federation mondiale
d’organismes nationaux de normalisation (Comites Membres ISO). L’elaboration de
Normes Internationales est confide aux Comites Techniques ISO. Chaque Comite
Membre intkresse par une etude a le droit de faire partie du Comite Technique
correspondant. Les organisations internationales, gouvernementales et non
gouvernementales, en liaison avec I’ISO, participent egalement aux travaux.
Les Projets de Normes Internationales adopt& par les Comites Techniques sont
soumis aux Comites Membres pour approbation, avant leur acceptation comme
Normes lnternationales par le Conseil de I’ISO.
Avant 1972, les resultats des travaux des Comites Techniques etaient publies
comme Recommandation ISO; maintenant, ces documents sont en tours de
transformation en Normes Internationales. Compte tenu de cette procedure, la
Norme Internationale IS0 456 remplace la Recommandation lSO/R 456-1965
etablie par le Comite Technique ISO/TC 91, Agents de surface.
Les Comites Membres des pays suivants avaient approuve la Recommandation :
Allemagne France Pologne
Argentine Hongr ie Portugal
Autriche Italie Roumanie
Canada Japon Royaume-Uni
Chili Maroc Su isse
Tchecoslovaquie
Colombie Norvege
Coke, Rep. de Nouvelle Zelande Yougoslav ie
Espagne Pays-Bas
Le Comite Membr ‘e du pays suivant avait desapprouve la R ecommandation pour des
raisons techniques
I nde
0 Organisation lnternationale de Normalisation, 1973 l
Imprim en Suisse
NORIVIE INTEWNATIONALE IS0 456-1973 (F)
-
Agents de surface Analyse des savons -
teneur en alcali libre caustique
Dktermination de la
0 INTRODUCTION 4 MiTHODE A (Methode dite a I’ethanol)
Les savons contenant habituellement une petite quantite de
4.1 Principe
matiere grasse neutre insaponifiee, il n’existe pas de mode
operatoire parfait pour doser I’alcali libre caustique, car au
Dissolution de savon dans de l’ethanol neutralise, et titrage
moment de la mise en solution de la prise d’essai du savon,
de I’alcali libre caustique, par une solution ethanolique
la matiere grasse neutre 3st plus ou moins saponifiee par
d’acide chlorhydrique.
I’alcaii libre caustique eventuellement present.
4.2 Rbactifs
Les deux methodes decrites par la prksente Norme
Internationale ont done un caractere conventionnel.
L’eau utilisee doit etre de I’eau distillee ou de l’eau de
purete au moins equivalente.
Par convention, I’alcali libre caustique est exprimk :
Les reactifs doivent repondre aux caracteristiques
_.-
en hydroxyde de sodium (NaOH), pour les savons
suivantes :
sodiques, et
-
en hydroxyde de potassium (KOH), pour les savons 4.2-l Ethanol, absolu, pzO = 0,792 g/ml.
potassiques.
4.2.2 Hydroxyde de potassium, solution ethanolique
environ 0,‘l N.
1 OBJET
4.2.3 A tide chlorh ydrique, solution ethanolique titree
La presente Norme lnternationale specif ie deux methodes
environ 0,l N.
de determination de I’alcali libre caustique dans les savons
commerciaux (a I’exclusion des compositions) :
4.2.4 Phknolph tafe’ine, solution a 1 g dans 100 ml de
- la methode A, dite ~3 YethanoI));
solution d’ethanol a 95 Y/o (V/V).
--
la methode B, dite ((au chlorure de baryum)).
4.3 Appareillage
Materiel courant de laboratoire, et notamment
2 DOMAINE D’APPLICATION
4.3.1 Fiole, de 500 ml environ, pouvant etre adaptee a un
2.1 La mbthode A (dite a I’ethanol) n’est applicable
refrigerant a reflux.
qu’aux savons sodiques de qualite courante, la prksence de
certains produits d’addition apportant des causes d’erreur.
4.3.2 Re’frige’rant P reflux.
Elle n’est pas applicable aux savons potassiques, en raison
de la solubilite du carbonate de potassium dans I’ethanol.
4.3.3 Balance analy tique.
2.2 La mkthode I3 (dite au chlorure de baryum) est
applicable a tous les savons mous de potassium, ou aux
4.4 Mode opkratoire
melanges de savons de sodium et de potassium. II n’est pas
d’appliquer cette methode aux savons
recommande
4.4.1 Prise d’essai
sodiques de qualite courante, qui ne contiennent pas
d’alcali libre caustique en quantites suffisantes pour etre
Peser, a 0,Ol g pres, environ 5 g de savon.
determi nees par cette methode.
4.4.2 Dosage
3 DEFINITION
Verser dans la fiole 200 ml d’ethanol (4.2.1). Adapter au
refrigk-ant a reflux. Porter a deuce ebullition et la
alcali Iibre caustique d’un savon mou : Quantite d’ions
maintenir pendant 5 min, afin d’eliminer le dioxyde de
hydroxyle, exprimee en hydroxyde de potassium (KOH),
carbone. Retirer du refrigerant et laisser refroid
...

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ISO 456
نو�باصلا ل�يلحت — يحطشلا طاشنلا تاد داوملا ىلو�ألا ةع�بطلا
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1973-03
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Surface active agents — Analysis of soaps — Determination of free
caustic alkali
عجرملاا م�قر International Organization for  ©
ISO 456:1973(ar) Standardization 1973

ISO 456:1973(ar)
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International Organization for Standardization 1973  ©
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ISO 456:1973(ar)
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1 . لا�حملا 1
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2 . ةعجراملاا 2.5.4
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2 . (مو�ترا�نلا د�ترولك ةق�ترط) ة�يبايلا ةق�ترطلا 5
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2 . ةق�يمطاا ساس�ا 1.5
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2 . فـساوكاا 2.5
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3 . تاوذ�الاو همـهجر�الا 3.5
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3 . ةـق�يمطاا 4.5
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3 . را�نترالا ةن�تع 1.4.5
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3 . را�نترالا ءامـجرإا 2.4.5
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3 . جخناتناا نع م�ت�نعتاا 5.5
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3 . تاـ�ناـسحاا 1.5.5
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4 . ةعجراملاا 2.5.5
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4 . را�نيخألا ر�ترقت 6
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International Organization for Standardization 1973  ©
جج
ISO 456:1973(ar)
م�تدقت
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ة�ت اوذاا تاقصاولاا ذاذعإا مت�ي ام ا�نااعو ،(وم�ي�الا ى�ق ءاضع�الا) ة�تنظواا س�ت�تقتاا تاه�حا ىلااع ذاحيا ىه (س�ت�تقتلا ة�تاوذاا ةلطنلاا) وم�ي�الا
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ة ا نوك�ي ن�ا ى�ق قحاا وضعاا اذها نإا�ق ، ة�تن�ق ةن�حا ةا تلكس ذ�ق عوصول�ن مالتهإا اها وضعاا ةه�حاا تناك اذإاو ، وم�ي�الا ة�تنقاا نا�حلاا لالر نم
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.وم�ي�الا ةلطنم عم لصاوي اها ىتاا ة�تموكحاا م�تعو اهنم ة�تموكحاا ة�تاوذاا تالطنلااا �كاذك للعاا ى�ق �كراس�يو .ةن�حلاا �كلي ى�ق لتلم
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اــهذالت عا ل�نق ةققاوللا ءاضع�الا لوذاا ىلع اهع�يروي مت�ي ة�تنقاا نا�حلاا ل�نق نم اهذاذعإا مت�ي ىتاا ة�تاوذاا ة�تسا�تقاا تاقصاولاا تاذوسم نإا
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وم�ي�الا سل�حم ل�نق نم ة�تاوذ ة�تسا�تق ةقصاولك
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ءم�ح ك ,ة�تاوذ تاقــصاوم ىاإا اهل�يوحي لرامم �ى�ق ًا�تاار قنايواا هذه ،تا�تصوتك ة�تاوذاا نا�حلا �ىنقاا للعاا تاجرمحم مسن مي 1972 ل�ن�ق ام
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ن م اه�نحس مي �ىتاا ISO Recommendation R 456-1965 ة�تصوتاا لحم لحيو �ىعلي ISO 456 ة�تاوذاا ةقصاولاا نإا�ق ءامجرإالا اذه نم
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. �ىحطساا ميوتاا تاذ ذاولاا ,ISO/TC 91 ة�تنقاا ةن�حلاا ل�ن�ق
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ة�تصوتاا ىلع هانذ�ا ءاضع�الا لوذاا تق�قاو
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هذناو�ن ا�يراعنه ن�تتنجرر�الا
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لاعيم�ناا ا�تااط�يإا اسلناا
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ا�تنامور نا�نا�تاا اذنك
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ا�تنا�نسا ا�يروك ىل�تسي
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امس�يوس�تمعلاا ا�ت�نمواوك
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هذحتلاا ةكلللاا اذناوه ا�تكاقولسوك�تسي
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ا�تكاقولسوعو�ي هذنارو�تن اسنمق
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جخ�يومناا ا�تنالا�ا
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:ة�تن�ق تارم�نلا ًاق�قو ة�تصوتاا ىلع ق�قاوي ما ة�تااتاا ءاضع�الا لوذاا
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ذنهاا
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International Organization for Standardization 1973  ©
د
ISO 456:1973(ar)
ةمدقم 0
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، ق�تلطاا يواكاا يولقاا م�يذقتا ة�تااتم ةق�يمظ ذجروي ال�ق ، ن�نضتلاا م�تع لذاعتلاا نهذاا نم هم�تعص ة�تلك ىلع يوتح�ي ام ًا�نااع نو�ناضاا ن�ال ًامطن
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. ًاذوجروم نوك�ي ذ�ق ق�تلظ ٍواك ي�ا�ن ًا�ن�يمقي ن�نضت�ي لذاعتلاا نهذاا نإا�ق نو�ناضاا ةن�تع ة�ناذإا ذنع ةن�ال
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ذ�تسكورذ�ته�ن ةنع ًام�نعم ق�تلطاا يواكاا يولقاا م�يذقتا الهماذحتسا ىلع ققيا ذق ة�تسا�تقاا ةقصاولاا هذه ىق ن�تيذراواا ن�تتق�يمطاا نمً الك نإاق اذا
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. ىمو�تسايو�ناا نو�ناضاا ىق مو�تسايو�ن ذ�تسكورذ�تهو ىمو�يذوضاا نو�ناضاا ىق م
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