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See Chinese contents: YB/T 081-2013 YB/T 081-2013: Rule for rounding off of numerical values and judgement of testing values for technical standards of metallurgy
This standard specifies the principle and the rounding-off key points of carrying out rounding off of numerical values and judgment of testing values or its calculated values in metallurgical standardization activities, and the coordination and connection requirements of product standards and test method standards for the rounding interval of index or parameter values.
