Abstract： According to the 《JJF1059 Evaluation and Expression of Uncertainty in Measurement》, and combining with mobile standard facility of natural gas flow measurement, the uncertainty analysis of standard equipment was made with GUM. Accroding to the traceability requirements, the meters whose uncertainty is no better than 0.33% can be calibrated by GUM. In accordance with the traceability requirements, it can verificate/calibrate the meter which is no better than lecel 1.0. Finally，the evaluation results are verified by compared with Nanjing branch of national station of petroleum & natural gas flow measurement.
闫文灿,肖迪,徐明,陆玉城. 移动式天然气计量标准装置不确定度评定[J]. 计量学报, 2014, 35(1): 54-60.
YAN Wen-can1，XIAO Di2，XU Ming1，LU Yu-cheng1. The Evaluation of Uncertainty of Mobile Calibration Facility for Natural Gas Meters. Acta Metrologica Sinica, 2014, 35(1): 54-60.