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:   , ,    8            .         . 8  ,     1 torr,  ISRM   80   7 . ,      1,          3,         2, 4, 8  3   7    .  8  3 0.00 g/cm     .           0.07% ,           0.05%     .               . ,   2, 4,8        1 torr              . , ,          ,            .                              .: , , ,  ,  Abstract: Repeatability and reproducibility in solid weight and effective porosity measurements have been discussed using8 core samples with different diameters, lengths, rock types, and effective porosities. Further, the effect of temperatureon the effective porosity measurement has been discussed as well. Effective porosity of each sample has been measured7 times with vacuum saturation method with vacuum pressure of 1 torr and vacuum time of 80 minutes. Firstly, effectiveporosity of each sample is measured one by one, so that it can provide a reference value. Then for reproducibility check,effective porosity measurements with vacuum saturation of 2, 4, and 8 samples simultaneously have been performed. Andfinally, repeated measurements for 3 times for each sample are made for repeatability check. Average deviation from thereference set in solid weight showed 0.00 g/cm

Repeatability and Reproducibility in Effective Porosity Measurements of Rock Samples