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一、前言商业用户膜式燃气表是指从事商业等以经营活动为目的的单位或个体用户使用的膜式燃气表,以燃气表计量数据为贸易结算依据,流量范围为(1~160)m3/h,准确度等级≥1.5级的使用中的膜式燃气表。目前商业燃气表周期检定率较低,一般情况下是当供需某一方发现燃气表有明显偏差时才申请检定,此时检定结果多数是燃气表计量偏差较大、使用时间较长,影响了燃气贸易的公正性。
I. Introduction Membrane gas meter for commercial users refers to membrane type gas meters used by units or individual users engaged in business activities such as commercial activities. Metering gas meter data are the basis of trade settlement. The flow range is (1 ~ 160) m3 / h, the accuracy level of ≥ 1.5 level in the use of membrane gas meter. The current commercial gas meter cycle check rate is low, under normal circumstances is when one of the supply and demand gas meter showed significant deviation before applying for verification, then the test results most gas meter measurement deviation, use a longer time, affecting the gas Trade fairness.