ISO 23581:2020

Petroleum products and related products — Determination of kinematic viscosity — Method by Stabinger type viscometer ISO 23581:2020

Publication date:   Jul 17, 2020

95.99 Withdrawal of Standard   May 14, 2024

General information

95.99 Withdrawal of Standard   May 14, 2024

ISO

ISO/TC 28 Petroleum and related products, fuels and lubricants from natural or synthetic sources

International Standard

75.080   Petroleum products in general

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Scope

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.

Life cycle

NOW

WITHDRAWN
ISO 23581:2020
95.99 Withdrawal of Standard
May 14, 2024

REVISED BY

PUBLISHED
ISO 23581:2024