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Recent content by tosg

  1. tosg

    Calibration Reference Standard in line with NQA-1 -2008

    Dear vpl and JR97, Thank you for the answer to the question. I'll discuss with the supplier once again based on your suggestions. Thanks again.
  2. tosg

    Calibration Reference Standard in line with NQA-1 -2008

    Hello, ASME NQA-1-2008 have a requirement for Reference Standards of Measuring and Test Equipment. Para. 302 of Requirement 12 shows "Refrence Standards shall have a minimum accuracy four times greater than taht of the measuring and test equipment". Since all of our M&TE go to outside...
  3. tosg

    ASME B31.3 test temperature of impact test

    According to ASME B31.3 "K323.3.4 Test Temperatures", test temperature of impact test shall not be higher than "the lowest temperature at which a piping component or weld will be subjected to a stress greater than 41 MPa (6ksi)" Does it mean that impact test is not required when highest stress...
  4. tosg

    Measuring sprial serrations for flamge surface finish

    I have a roughness comparator of Rubert & Co. Ltd. UK. Website of the company may be of some help. http://www.rubert.co.uk/
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