空气中甲醛含量检测不确定度的评定

Evaluation of Uncertainty in Determination of Formaldehyde Content in Air

测量不确定度意为对测量结果准确性的可疑程度,测量结果的准确性和可用性很大程度上取决于其不确定度的大小。空气中甲醛含量检测从现场采样开始到室内检测,中间环节多,影响检测结果准确性的因素较多。人们要充分估计、分析和评价各种因素对检测结果准确性的影响,并对其检测的不确定度进行合理评定,从而找到对检测结果影响较大的因素。这样就可以在实际检测工作中有针对性地把握和控制主要影响因素,提高检测结果的准确度。

Measurement uncertainty means the degree of doubt about the accuracy of the measurement results.The accuracy and usability of the measurement results largely depend on the degree of uncertainty.The detection of formaldehyde content in the air starts from on-site sampling to indoor detection.There are many intermediate links,and there are many factors affecting the accuracy of the test results.People should fully estimate,analyze and evaluate the influence of various factors on the accuracy of the test results,and make a reasonable assessment of the uncertainty of the test to find out the factors that have a greater impact on the test results.In this way,the main influencing factors can be grasped and controlled in the actual detection work,and the accuracy of the test results can be improved.