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UDC 621.9
IS0
I N T E R NAT1 O N AL O R GAN I ZATl O N
FOR STAN DAR DI ZATl O N
IS0 RECOMMENDATION
R 299
T SLOTS FOR MACHINE TOOLS
1st EDITION
March 1963
COPYRIGHT RESERVED
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 HTSTORY
The IS0 Recommendation R 299, T Slots for Machine Tools, was drawn up by Technical
Committee ISO/TC 39, Maclzine Tools, the Secretariat of which is held by the Association Fran-
çaise de Normalisation (AFNOR).
Work on this question by the Technical Committee began in 1950, taking into account the
studies which had been made by the former International Federation of the National Standard-
izing Associations (ISA), and led, in 1958, to the adoption of a Draft IS0 Recommendation.
In April 1961, this Draft IS0 Recommendation (No. 452) was circulated to all the IS0
Member Bodies for enquiry. It was approved by the following Member Bodies :
Austria Greece Poland
Belgium Hungary Portugal
Bulgaria India Romania
Sweden
Chile Iran
Colombia Italy Switzerland
Czechoslovakia Japan United Kingdom
Denmark Mexico U.S.A.
France Netherlands U.S.S.R.
New Zealand
Germany
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 March 1963, to accept it as an IS0 RECOMMENDATION.
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ISOIR 299 - 1963 (E)
IS0 Recommendation R 299 March 1963
T SLOTS FOR MACHINE TOOLS
1.
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