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Ref. No. : ISO/R 693-1968 (E)
IS0
INTERN AT I ON A L ORGAN IZ AT1 O N FOR STANDARD IZATl ON
IS0 RECOMMENDATION
R 693
DIMENSIONS OF SEAM WELDING WHEEL BLANKS
1 st EDIT I ON
March 1968
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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 693, Dimensions of seam welding wheel blanks, was drawn up by
Technical Committee ISO/TC 44, Welding, the Secretariat of which is held by the Association Fran-
çaise de Normalisation (AFNOR).
Work on this question by the Technical Committee began in 1958 and led, in 1965, to the
adoption of a Draft IS0 Recommendation.
In May 1966, this Draft IS0 Recommendation (No. 976) was circulated to all the IS0 Member
Bodies for enquiry. It was approved, subject to a few modifications of an editorial nature, by the
following Member Bodies :
Australia Ireland Spain
Israel
Belgium Sweden
Japan
Brazil Switzerland
Korea, Rep. of
Chile Turkey
Netherlands
Czechoslovakia U.A.R.
Norway
Denmark United Kingdom
Poland U.S.A.
Finland
France Portugal U.S.S.R.
Germany Romania Yugoslavia
South Africa,
Hungary
India Rep. of
One Member Body opposed the approval of the Draft :
Canada
The Draft IS0 Recommendation was then submitted by correspondence to the IS0 Council
which decided, in March 1968, to accept it as an IS0 RECOMMENDATION.
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ISO/R 693-1966 (E
March 1968
IS0 Recommendation R 693
DIMENSIONS OF SEAM WELDING WHEEL BLANKS
INTRODUCTION
In this IS0 Recommendation, the preferred sizes of the nominal outside diameters of the finished
wheels have been taken from the R 10 series of prefe
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