煤气表在使用中超出允许误差范围,是造成煤气产销差增大的原因之一。产销差的加大,它不仅直接影响到煤气的销售成本,而且也是衡量一个企业技术管理水平高低的重要指标。为了保证使用中煤气表的误差不超过允许误差,应根据煤气表的使用周期,定期更换检修;当人工煤气质量和煤气表质量不能保证时就更有必要。但是如果将每 The use of gas meters in excess of the allowable error range is one of the reasons for the increase in production and sales of gas. The increase in the difference between production and sales, it not only directly affects the cost of gas sales, but also an important indicator to measure the level of an enterprise’s technology management. In order to ensure that the error of the gas meter in use does not exceed the allowable error, the maintenance should be replaced regularly according to the life cycle of the gas meter; it is more necessary when the quality of the artificial gas and the quality of the gas meter cannot be guaranteed. But if you will each