2016 International Standard (ISO INTERNATIONAL ORGANIZATION FOR STANDARDIZATION·MEXKAYHAPOAHAR OPrAHM3AUMR HIO CTAHAAPTW3ALWWORGANISATION INTERNATIONALE DE NORMALISATION Capillary solder fittings for copper tubes - Assembly dimensions and tests Raccords abraserpar capillarite pour tubes en cuivre-Dimensions d'assemblage et essais First edition - 1981-12-01 ) 2016-1981 (E) UDC 621.643.411.3 : 621.643.24 Ref.No.ISO2016-1981 (E) Descriptors : pipes (tubes), copper tubes, pipe fittings, dimensions, dimensional tolerances, designation, tests. Foreword Iso (the International Organization for Standardization) is a worldwide federation of national standards institutes (ISO member bodies). The work of developing Inter- national Standards is carried out through Iso technical committees, Every member body interested in a subject for which a technical committee has been set up has the right to be represented on that committee. International organizations, governmental and non-governmental,in liaison withIsO,alsotake part in the work. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the ISO Council. International Standard ISO2016wasdevelopedbyTechnical CommitteeISO/TC5, Ferrous metal pipes and metallic fittings, and was circulated to the member bodies in April 1980. It has been approved by the member bodies of the following countries : Austria Germany, F.R. South Africa, Rep. of Belgium India Spain Israel Sweden Czechoslovakia Korea, Rep. of Switzerland Denmark Netherlands USSR Egypt, Arab Rep. of Poland Finland Romania The member bodies of the following countries expressed disapproval of the document on technical grounds : Australia Japan Canada United Kingdom France USA This International Standard cancels and replaces ISo Recommendation R 2016-1971, of which it constitutes a technical revision. @International Organization for Standardization, 1981 Printed in Switzerland ISO2016-1981(E) INTERNATIONALSTANDARD Capillary solder fittings for copper tubes - Assembly dimensions and tests 1Scopeandfieldofapplication 2References This International Standard specifies the field of application, Iso7,Pipethreads where pressure-tight joints aremade on the the assembly dimensions and their tolerances, the materials threads- and tests for capillary solder fittings for copper tubes. Part 1 : Designation, dimensions and tolerances.1) Part 2 : Verification by means of limit gauges.2) ISo 228, Pipe threads where pressure-tight joints are not made Capillary soldered joints having socket and male end dimen- onthethreads sions and tolerances as given in this International Standard are Part1:Designation, dimensionsand tolerances.3) suitablefortheserviceconditionsshown intable1. Part 2 : Verification by means of limit gauges. Table 1 -- Service conditions Solder- Typical examples Service Service pressure in bars ing/ of soldering! temperature2) brazing brazing alloysi12) oc max. 6 to 28 mm 35 to 54 mm [76,1 to 108 mm Solder- lead/tin 30 16 16 10 ing 50/50 % or 65 10 10 6 60/40 % 110 9 6 4 30 40 II tin/silver or 25 16 tin/copper 65 25 16 16 95/5 % or 97/3 % 110 16 10 10 Brazing II silver cadmium free 30 40 25 16 55 % silver IV silver with cadmium 65 25 16 16 30or40% silver V copper/phos- phorous 110 16 10 10 94/6%orwith 2 % siver 1]The choice depends upon the field of application and the rules in force. 2)For use in applications involving higher working pressures and higher working temperatures, solder/brazing alloys with suitable fluxes as recommended by the solder or ftting manufacturer shall be used 3) A factor of safety of 2,5 wil be achieved with 50/50 % tin/lead solder when a solder bond of 60 % of the specified assembly surface is attained. 1) At present at the stage of draft, (Revision of IS0 7/1-1978.) 2) At present at the stage of draft. 3)At present at the stage of draft. (Revision of ISo 228/1-1978.)