EN ISO 3104:2020

Petroleum products - Transparent and opaque liquids - Determination of kinematic viscosity and calculation of dynamic viscosity (ISO 3104:2020) EN ISO 3104:2020

Publication date:   Dec 21, 2020

General information

99.60 Withdrawal effective   Nov 22, 2023

CEN

CEN/TC 19 Gaseous and liquid fuels, lubricants and related products of petroleum, synthetic and biological origin.

European Norm

75.080   Petroleum products in general

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Scope

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 liquid petroleum products, both transparent and opaque, 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.

Life cycle

PREVIOUSLY

WITHDRAWN
EN ISO 3104:1996

WITHDRAWN
EN ISO 3104:1996/AC:1998

WITHDRAWN
EN ISO 3104:1996/AC:1999

NOW

WITHDRAWN
EN ISO 3104:2020
99.60 Withdrawal effective
Nov 22, 2023

REVISED BY

PUBLISHED
EN ISO 3104:2023