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IS0
FOR STAN DA RD IZ AT I O N
I NT ERN AT1 ON AL O RG A N IZAT I O N
IS0 RECOMMENDATION
R 453
SURFACE ACTIVE AGENTS
GLOSSARY
FIRST LIST
1st EDITION
November 1965
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The copyright of IS0 Recommendations and IS0 Standards
belongs to IS0 Member Bodies. Reproduction of these
documents, in any country, may be authorized therefore only
by the nationai standards organization of that country, being
a member of ISO.
For each individual country the only valid standard is the national standard of that country.
Printed in Switzerland
Also issued in French and Russian. Copies to be obtained through the national standards organizations.
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BRIEF HISTORY
The IS0 Recommendation R 453, Surface Active Agents. Glossary. First List, was
drawn up by Technical Committee ISO/TC 91, Surface Acrive Agents, the Secretariat of
which is held by the Association Française de Normalisation (AFNOR).
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Work on this question by the Technical Committee began in 1960 and led, in 1962,
to the adoption of a Draft IS0 Recommendation.
In October 1963, this Draft IS0 Recommendation (No. 607) was circulated to all the
IS0 Member Bodies for enquiry. It was approved by the following Member Bodies:
Argentina Hungary Portugal
Austria Italy Republic of South Africa
Canada Romania
Japan
Chile Korea, Rep. of Spain
Czechoslovakia Netherlands Switzerland
France
New Zealand U.A.R.
Germany Norway United Kingdom
Greece Poland Yugoslavia
No Member Body opposed the approval of the Draft.
The Draft IS0 Recommendation was then submitted by correspondence to the IS0
Council which decided, in November 1965, to accept it as an IS0 RECOMMENDATION.
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lSO/R 453 - 1985 (E)
N ovem ber 1 965
IS0 Recommendation R 453
SURFACE ACTIVE AGENTS
GLOSSARY
FIRST LIST
INTRODUCTION
The following definitions relate to systems in which liquid is present.
1. PURPOSE
The purpose of this IS0 Recommendation is to define some of the general terms most frequently
used in the field of surface active agents.
2. DEFINITIONS
2.1 Surface active agent
A chemical compound which, when dissolved or dispersed in a liquid, is preferentially
adsorbed at an interface, giving rise to a number of physico-chemical or chemical properties
of practical interest.
The molecule of the compound includes at least one group with an affinity for markedly
polar surfaces, ensuring in most cases solubilization in water, and a group which has little
affinity for water.
NOTE. - Composition
...