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UDC 621.643
IS0
FOR S TA N DARD 12 AT I ON
OR G A N I Z AT I ON
I N T E RN AT I O N A L
IS0 RECOMMENDATION
R 560
COLD DRAWN PRECISION STEEL TUBES
METRIC SERIES
Dimensions, Tolerances and Masses per Metre
1 st EDITION
March 1967
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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 HISTORY
The IS0 Recommendation R 560, Cold Drawn Precision Steel Tubes - Metric Series -
Dimensions, Tolerances and Masses per Metre, was drawn up by Technical Committee ISO/TC 5,
Pipes and Fittings, the Secretariat of which is held by the Association Suisse de Normalisation
(SNV
Work on this question by the Technical Committee began in 1958 and led, in 1963, to
the adoption of a Draft IS0 Recommendation.
In April 1965, this Draft IS0 Recommendation (No. 789) was circulated to all the IS0
‘4
Member Bodies for enquiry. It
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