ISO 23581:2020 石油产品和有关产品 运动粘度的测定 用稳定型粘度计法
标准编号：ISO 23581:2020
中文名称：石油产品和有关产品 运动粘度的测定 用稳定型粘度计法
英文名称：Petroleum products and related products — Determination of kinematic viscosity — Method by Stabinger type viscometer
发布日期：2020-07
标准范围
本文件规定了通过使用Stabinger型粘度计从中间馏分燃料、脂肪酸甲酯燃料(FAME)及其混合物的动态粘度(η)和密度(ρ)进行计算来测定40℃下2mm2/s至6mm2/s范围内的运动粘度(ν)的程序。使用本文所述程序获得的结果取决于样品的流变行为。本文件主要适用于剪切应力和剪切速率成比例的液体（牛顿流动行为）。然而，如果粘度随剪切速率显著变化，则只有在相似的剪切速率下才允许与其他测量方法进行比较。
This document specifies a procedure for the determination of kinematic viscosity (ν) at 40 °C in the range from 2 mm2/s to 6 mm2/s by calculation from dynamic viscosity (η) and density (ρ) of middle distillate fuels, fatty acid methyl ester fuels (FAME) and mixtures of these using the Stabinger type viscometer.The result obtained using the procedure described in this document depends on the rheological behaviour of the sample. This document is predominantly applicable to liquids whose shear stress and shear rate are proportional (Newtonian flow behaviour). However, if the viscosity changes significantly with the shear rate, comparison with other measuring methods is only permissible at similar shear rates.
标准预览图
