This European Standard specifies the requirements, sampling, test methods and conditions of delivery for seamless round copper tubes, smooth or inner finned, used for heat exchangers and their internal connecting pipes in the manufacturing of refrigeration and air conditioning equipment. It is applicable to tubes with an outside diameter from 6 mm up to and including 133 mm. The tubes are supplied in straight length in the material conditions hard, half-hard or skin hard or as coils in the material conditions light annealed or soft annealed.
EN 12735-2:2010 Referenced Document
EN 10204 Metallic products - Types of inspection documents*， 2024-04-19 Update
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EN 1971 Copper and Copper Alloys - Eddy Current Test for Tubes Ratified European Text
EN 723 Copper and copper alloys - Combustion method for determination of the carbon content on the inner surface of copper tubes or fittings
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EN ISO 6507-1 Metallic materials - Vickers hardness test - Part 1: Test method (ISO 6507-1:2023)*， 2023-10-25 Update
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EN ISO 8493 Metallic materials - Tube - Drift-expanding test
ISO 1553 Unalloyed copper containing not less than 99,90 % of copper; Determination of copper content; Electrolytic method
ISO 4741 Copper and copper alloys; Determination of phosphorus content; Molybdovanadate spectrometric method
EN 12735-2:2010 history
2016EN 12735-2:2016 Copper and copper alloys - Seamless, round tubes for air conditioning and refrigeration - Part 2: Tubes for equipment
2010EN 12735-2:2010 Copper and copper alloys - Seamless, round copper tubes for air conditioning and refrigeration - Part 2: Tubes for equipment
2001EN 12735-2:2001 Copper and Copper Alloys - Seamless, Round Copper Tubes for Air-Conditioning and Refrigeration - Part 2: Tubes for Equipment Includes Amendment A1:04/2005