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本文对国内有效数字的修约和应用情况作了简单介绍。实验室评审认证中,在原始记录、计算、报告等各个环节,暴露出很多关于有效数字的问题。但实验室在不断进步,相关人员的认识与应用水平也逐步提高,发表了很多文章和见解,推动了工作的进步。作者根据有效数字修约及运算规则,结合多数同行的观点,总结归纳出五个注意事项,重在简洁实用,应用于卫生理化实验工作。并分别在仪器读数、简单计算、复杂计算、标准曲线、外标法求未知含量等方面作了举例说明,回应实验室工作中涉及有效数字的相关疑问。
This article briefly introduces the revision and application of domestic effective figures. Laboratory accreditation certification, in the original records, calculations, reports and other links, exposed a lot of questions about the effective number. However, the laboratories are making continuous progress. The level of awareness and application of relevant personnel is also gradually raised. Many articles and opinions have been published and the progress of the work has been promoted. According to the rules of effective number rounding and operation, combined with the viewpoints of most counterparts, the author summarizes five considerations, focusing on conciseness and practicality, and applies to the physical and chemical experiment of health. And gave some examples in terms of instrument reading, simple calculation, complex calculation, standard curve and external standard method for unknown content, respectively, in response to relevant questions concerning effective figures in laboratory work.