ASTM B543-96 pdf free.Standard Specification for Welded Copper and Copper-Alloy Heat Exchanger Tube.
When samples are taken at the time the castings arepoured, at least one sample shall be taken for each group ofcastings poured simultaneously from the same source ofmolten metal.When samples are taken from the semifinishedproduct, a sample shall be taken to represent each 10 000 1b orfraction thereof, except that not more than one sample shall berequired per piece.Due to the discontinuous nature of the processing ofcastings into wrought products， it is not practical to identifyspecific casting analysis with a specific quantity of finishedmaterial.In the event that heat identification or traceability isrequired, the purchaser shall specify the details desired.When tensile strength is specified, two tubes shall be selected from each lot and subjected to thetension test which shall, in case of disagreement, be made in accordance with Test Methods E 8.
For tests specified in Sections 10 14inclusive,specimens shall be taken from each of the piecesselected in accordance with 18.1. If any test specimen representing a lot fails to conform to the requirements of Sections 7,10,11，12,13,and 14,twoadditional specimens, at the option of the manufacturer, may be taken as before, and submitted for check analysis or subjectedto any tests in which the original specimen failed, but each ofthese specimens shall conform to the requirements specified.The manufacturer shall afford the inspector all reason-able facilities to satisfy him that the tubes being furnished arein accordance with this specification. All tests (except checkanalysis) and inspection shall be made at the place of manu-facture, prior to shipment, unless otherwise specified, and shallbe so conducted as not to interfere unnecessarily with theoperation of the works.
Material that fails to conform to the requirements ofthis specification when inspected or tested by the purchaser orhis agent may be rejected. Rejection should be reported to themanufacturer or supplier promptly and in writing. In case ofdissatisfaction with the results of the test, the manufacturer orsupplier may make claim for a rehearing.When specified in the purchase order or contract，amanufacturer’s certificate of compliance shall be furnished tothe purchaser stating that each lot has been sampled, tested, andinspected in accordance with this specification and the require-ments have been met. When material is specified to meet therequirements of ASME Boiler and Pressure Vessel Code, thecertification requirements are mandatory.
The material shall be separated by size, composition,and temper, and prepared for shipment in such a manner as toensure acceptance by common carrier for transportation and toafford protection from the normal hazards of transportation.25.2 Each shipping unit shall be legibly marked with thepurchase order number，metal or alloy designation，temper,size, shape，total length or piece count or both,and name ofsupplier. The specification number shall be shown，whenspecified.ASTM B543 pdf download.