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Recent content by protechWT

  1. protechWT

    Disagreement between ASTM D1250 table 53b and calculation

    Hi, many years ago I was a member of D2 and the relevant API MPM ch17 subcommittees. From memory, there was always a discrepancy at various densities - the standard was written in cobol I think and the "variations" only came apparent after people started using Sharp PC6 basic calculators and...
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