ASTM B552-98 pdf free

04-15-2021 comment

ASTM B552-98 pdf free.Standard Specification for Seamless and Welded Copper–Nickel Tubes for Water Desalting Plants.
Test methods for the determination of element(s)required by contractual or purchase order agreement shall be asagreed upon by the manufacturer and the purchaser.Tensile Strength shall be determined in accordancewith Test Methods E 8.
Whenever test results are obtained from both fullsize and machined specimens and they differ, the test resultsfrom the full-size specimens shall prevail.
Electromagnetic (Eddy-Current)Testing shallfollow the procedures in Practice E 243 except for the deter-mination of”endeffect.”
Notchdepth standards shall be rounded to thenearest 0.001 in.(0.025 mm).The notch depth tolerance shallbe 0.0005 in.(0.013 mm). Drilled hole standards shall be rounded to thenearest 0.001 in. (0.025 mm). The drilled hole tolerance shallbe ±0.0005 in. (0.013 mm).Alternatively,at the option of the manufacturer,using speed-insensitive eddy current units that are equipped sothat a fraction of the maximum imbalance signal can beselected, a maximum imbalance signal of 0.3 % shall be used.16.2.2.4 Tubes that do not activate the signaling device ofthe eddy current tester shall be considered as conforming to therequirements of this test.Tubes with discontinuities indicatedby the testing unit are permitted, at the option of the manufac-turer, to be reexamined or retested to determine whether thediscontinuity is cause for rejection. Signals that are found to have been caused by minor mechanical damage,soil,ormoisture, shall not be cause for rejection of the tubes providedthe tube dimensions are still within prescribed limits, and thetube is suitable for its intended application.The test method used shall permiteasy visual detection of any leakage or by pressure differential.Any evidence of leakage shall be cause for rejection.The test method used shall permiteasy visual detection of any leakage or by pressure differential.Any evidence of leakage shall be cause for rejection.Chemical composition shall bedetermined as the per element mean of results from at least tworeplicate analyses of the sample(s) and the results of eachreplication must meet the requirements of this specification.The results of each specimen testedmust meet the requirements of this specification. When requested by the manufacturer or supplier,aretest shall be permitted when test results obtained by thepurchaser fail to conform to product specification require-ment(s). Retesting shall be conducted using twice the numberof tests specimens normally required for test.Test results forspecimens shall conform to the product specification requirement(s) in retest and failure to conform to the requirementsshall be cause for rejection of the entire lot.ASTM B552 pdf download.

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