Gas clearings regulations. Sources of unaccounted gas amounts. IGNiG research results. Influence of temperature and pressure on gas volume measurement. Influence of environment's temperature on gas meter's starting point. Admissible border errors of gas meters. Stability of metrologie characteristics of a gas meter.
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Quality standards for gas fuels. Calculating the amount of supplied gas energy. Measurement pressure. Setting atmospheric pressure for given region. Calculating burning heat capacity for a calculation period - examples. Comparison of measured and calculated values.
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