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Ref. No.: ISO/R285-1962(E)
IS0
I NTERN AT1 ON A L ORGAN IZATl ON FOR STA N DA RD lZATl O N
IS0 RECOMMENDATION
R 285
STEEL TUBES
BUTT WELDING BENDS
(90" and 180")
1st EDITION
December 1962
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 JSO.
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
This IS0 Recommendation R 285, Steel Tubes. Butt Welding Bends (900 and 1800) 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 1960, to the
adoption of a Draft IS0 Recommendation.
In October 1960, this Draft IS0 Recommendation (No. 406) was circulated to all the IS0
Member Bodies for enquiry. It was approved by the following Member Bodies:
Australia Greece New Zealand
Belgium
Hungary Poland
Brazil India Portugal
Chile Iran Spain
Czechoslovakia Israel Sweden
Denmark Italy Switzerland
France Japan United Kingdom
Germany Netherlands Yugoslavia
One Member Body opposed the approval of the Draft: U.S.S.R.
The Draft IS0 Recommendation was then submitted by correspondence to the IS0 Council,
which decided, in December 1962, to accept it as an IS0 RECOMMENDATION.
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I
ISO/R 285 - 1962 (E)
IS0 Recommendation R 285 December 1962
STEEL TUBES
BUTT WELDING BENDS
(90" and 180")
This IS0 Recommendation lays d
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