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UDC 678.674 : 620.1 Ref. No.: ISOlR 584 - 1967 (E)
IS0
INTERN AT1 ON AL O R G A N I Z AT I O N FOR S TA N DARD I Z AT1 O N
IS0 RECOMMENDATION
'.
R 584
PLASTiCS
DETERMINATION OF THE MAXIMUM TEMPERATURE
AND THE RATE OF INCREASE OF TEMPERATURE
DURING THE SETTING OF UNSATURATED POLYESTER RESINS
1st EDITION
July 1967
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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 national 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 584, Determination of the Maximum Temperature and the
Rate of Increase of Temperature during the Setting of Unsaturated Polyester Resins, was drawn up
by Technical Committee ISO/TC 61, Plastics, the Secretariat of which is held by the United
States of America Standards Institute (USASI).
Work on this question by the Technical Committee began in 1959 and led, in 1961, to the
adoption of a Draft IS0 Recommendation.
This first Draft IS0 Recommendation (No.467) was circulated to all the IS0 Member
Bodies for enquiry, in April 1962. As the results of this consultation were not considered satis-
factory, the Technical Committee presented a second Draft IS0 Recommendation, which was
circulated to all the Member Bodies in September 1964, and which was approved, subject to a
few modifications of an editorial nature, by the following Member Bodies :
Argentina Germany Romania
Australia Hung a r y
Spain
Austria India Sweden
Belgium Israel Switzerland
Bulgaria Italy Turkey
Canada
Japan U.A.R.
Czechoslovakia Korea, Rep. of United Kingdom
Denmark Netherlands U.S.A.
Finland New-Zealand U.S.S.R.
France
Poland
No Member Body opposed the approval of the Draft:
The Draft IS0 Recommendation was then submitted by correspondence to the IS0 Coun-
cil, which decided, in July 1967, to accept it as an IS0 RECOMMENDATION.
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ISOIR 584 - 1!%7 (E)
IS0 Recommendation R 584 July 1967
PLASTICS
DETERMINATION OF THE MAXIMUM TEMPERATURE
AND THE RATE OF INCREASE OF TEMPERATURE
DURING THE SETTING OF UNSATURATED POLYESTER RESINS
1. SCOPE
1.1 This IS0 Recommendation describes a method of test for measuring firstly, the maximum
temperature reached by a solution of an unsaturated polyester resin and catalyst, when heated
on a water bath at 80 OC, and secondly, the time taken for the temperature of the solution to
rise from 65 OC to this maximum temperature. If the maximum temperature exceeds 90 OC,
the time taken for the temperature to rise from 65 "C to 90 OC is also measured.
1.2 The maximum temperature reached and the rate of increase of temperature during the setting
of unsaturated polyester resins give an indication of their behaviour in use and can be used
to compare resins of similar type. As the test results depend very much on the conditions under
which the test is carried out, these conditions are described in detail.
1.3 The method can also be used to
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