本文件规定了程序A（使用手动玻璃粘度计）和程序B（使用自动装配中的玻璃毛细管粘度计，通过测量液体体积在重力作用下通过校准的玻璃毛细管黏度计流动的时间，测定透明和不透明液体石油产品的运动粘度ν）。动态粘度η是通过将测得的运动粘度乘以液体的密度ρ得到的。在-20°C至+150°C的温度范围内，本试验方法涵盖的运动粘度范围为0.2 mm2/s至300 000 mm2/s。适用于含有煤油、柴油、生物柴油和混合生物柴油的产品。

This document specifies Procedure A, using manual glass viscometers, and Procedure B, using glass capillary viscometers in an automated assembly, for the determination of the kinematic viscosity, ν, of both transparent and opaque products. The scope includes liquid petroleum products, fatty acid methyl ester (FAME), paraffinic diesel, hydrotreated vegetable oil (HVO), gas to liquid (GTL) and biofuel diesel mixtures up to 50 % FAME. The kinematic viscosity is determined by measuring the time for a volume of liquid to flow under gravity through a calibrated glass capillary viscometer. The dynamic viscosity, η, is obtained by multiplying the measured kinematic viscosity by the density, ρ, of the liquid. The range of kinematic viscosities covered in this test method is from 0,2 mm2/s to 300 000 mm2/s over the temperature range –20 °C to +150 °C. NOTE       The result obtained from this document is dependent upon the behaviour of the sample and is intended for application to liquids for which primarily the shear stress and shear rates are proportional (Newtonian flow behaviour). If, however, the viscosity varies significantly with the rate of shear, different results can be obtained from viscometers of different capillary diameters. The procedure and precision values for residual fuel oils, which under some conditions exhibit non-Newtonian behaviour, have been included.