Effects of Specimen Preparation Methods on Oxygen Content in Copper
The oxygen content in pure copper was tested by oxygen nitrogen hydrogen analyzer to investigate effects of specimen preparation methods on accuracy of oxygen content determination.The results indicate that surface treatment should be carried out before testing by infrared absorption method.Turning,vigorously cutting and pickling hardly affect the results,while hand saw and file can cause significant deviation.Only turning+vigorously cutting+pickling can be adopted for specimens with an oxygen content of<0.001 0%,and the test should be carried out within 4 h to avoid affecting the test results.
Pure CopperSpecimen Preparation MethodOxygen Content
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