称量法是一种在计量领域内使用频繁且准确度较高的方法,常用于玻璃量器或金属量器的容量检定。它适用于组分之间、组分与容器内壁不发生反应的气体或液体。当用称量法检定量器容量值时,空气浮力修正是一个非常重要的因素。为什么要考虑浮力修正,如何进行修正,什么情况下又可以不考虑浮力修正,本文将通过分析和推导JJG20-2001《标准玻璃 Weighing is a method used frequently and accurately in the field of metrology and is often used in the capacity verification of glassware or metal gauges. It applies to components, components and the container does not react with the inner wall of the gas or liquid. Air buoyancy correction is a very important factor when gravimetric measurements of volumetric capacity are used. Why to consider buoyancy correction, how to make corrections, under what circumstances can not consider buoyancy correction, this article will analyze and derive JJG20-2001 "standard glass