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不确定度是对测量结果可能误差的度量,也是定量说明测量结果质量好坏的一个参数。报告中的测量结果用不确定度作为度量的尺度就能看出其水平、价值的高低。本文根据国家质量技术监督局发布的《测量不确定度评定与表示》(JJF1059-1999),对铬酸钡分光光度法(热法)测定水中硫酸盐?
Uncertainty is a measure of the possible error in the measurement and is a parameter that quantifies the quality of the measurement. The measurement results in the report using the uncertainty as a measure of the scale will be able to see its level, the level of value. According to the “Measurement Uncertainty Evaluation and Expression” (JJF1059-1999) issued by the State Bureau of Quality and Technical Supervision, the determination of sulfate in water by barium chromate spectrophotometry (thermal method)