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根据《测量不确定度评定与表示》(JJF1059—1999),找出产生不确定度的因素,对不确定度进行评估。结果显示,用大气采样器采集空气,仪器的流量示值误差及流量稳定性是采集体积不确定度的主要来源。
According to “Measurement Uncertainty Evaluation and Expression” (JJF1059-1999), find out the factors that cause the uncertainty and evaluate the uncertainty. The results show that the use of air sampler to collect air, instrument flow error and flow rate indication is the main source of volume uncertainty.