This International Standard specifies methods for comparing the population mean of the differences between paired observations to zero or other pre-specified values.
GB 3361-1982 history
1982GB/T 3361-1982 Statistical interpretation of data--Comparison of two means in the case of paired observations
GB 3361-1982 Statistical Treatment and Interpretation of Data Comparison of Two Means in the Case of Paired Observations has been changed from GB/T 3361-1982 Statistical interpretation of data--Comparison of two means in the case of paired observations.