Historical
BS EN 12168:1998
Copper and copper alloys. Hollow rod for free machining purposes (British Standard)
This European Standard specifies the composition, property requirements and dimensional tolerances for copper alloy hollow rod supplied in straight lengths, specifically intended for free machining purposes. Note: Hollow products having an outside diameter greater than 80 mm, and/or a wall thickness less than 2 mm, are specified in prEN 12449. The sampling procedures, the methods of test for verification of conformity to the requirements of this standard, and the delivery conditions are also specified.
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British Standards Institution [bsi]
British Standards Institution [bsi]