ISO 6883:2017规定了一种测定动植物脂肪和油（以下简称脂肪）的常规单位体积质量（“空气中的升重量”）的方法，以便将体积转换为质量或质量转换为体积。 该程序仅适用于液态脂肪。牛奶和奶制品（或来自牛奶和奶制品的脂肪）不在本文件范围内。 注:使用振荡U形管法测定常规单位体积质量（空气中的升重量）可在ISO 18301中找到。

ISO 6883:2017 specifies a method for the determination of the conventional mass per volume ("litre weight in air") of animal and vegetable fats and oils (hereinafter referred to as fats) in order to convert volume to mass or mass to volume. The procedure is applicable to fats only when they are in a liquid state. Milk and milk products (or fat coming from milk and milk products) are excluded from the scope of this document. NOTE The determination of conventional mass per volume (litre weight in air) using the oscillating U-tube method can be found in ISO 18301.