Abstract:In order to objectively, fairly and scientifically reflect the statutory measurement techniques commonly used in the detection capability of volumetric glass in the whole region, by comparing the activity, examine each laboratory detection capability of common glass to make sure that the laboratory calibration methods, measurement quantity and the consistency of the verification results issued to promote the communication among each lab and improve the level of verification. There are 9 legal measurement technical institutions participating in the comparison in the whole region. The reference value was calculated by the weighted average method of the measurement results of the leading laboratory and all reference laboratories, The normalized deviation En value was used to evaluate the comparison results, analyses problems existing in the comparison period and put forward suggestions.
Key words: one-mark volumetric flask;Quantity-value comparison;reference value