评价测量结果的不确定度,是计量测试工作中的一个重大问题。由于目前对不确定度存在有各种不同的认识,例如对误差的类型、最后不确定度的表示等等的分歧意见,使得评价测量结果的工作十分混乱,多年来一直悬而未决。国际计量局为了能在实用的基础上统一各种不同的见解,1978年2月24日曾向30个国家的计量机构发出《有关不确定度的征求意见 Evaluation of the uncertainty of the measurement results is a major issue in the measurement test. Due to the current different opinions on the degree of uncertainty, such as different opinions on the type of error, the expression of the last uncertainty, etc., the work of evaluating the measurement results is very confusing and has remained unresolved for many years. International Bureau of Weights in order to unify a variety of different opinions on a practical basis, on February 24, 1978 to the measurement agencies in 30 countries issued "comments on the uncertainty