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ISO 23581:2024

Petroleum products and related products — Determination of kinematic viscosity — Method by Stabinger type viscometer

May 14, 2024

General information

60.60     May 14, 2024

ISO

ISO/TC 28

International Standard

75.080  

English   French  

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Scope

This document specifies a procedure for the determination of kinematic viscosity, ν, by calculation from dynamic viscosity, η, and density, ρ, of both transparent and opaque liquid petroleum products and crude oils 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). If the viscosity changes significantly with the shear rate, comparison with other measuring methods is not possible except at similar shear rates.
The precision has been determined only for the materials, density ranges and temperatures described in Clause 13. The test method can be applied to a wider range of viscosity, density, temperature and materials. It is possible that the precision and bias are applicable for materials which are not listed in Clause 13.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 23581:2020

NOW

PUBLISHED
ISO 23581:2024
60.60 Standard published
May 14, 2024

National adoptions

Petroleum products and related products - Determination of kinematic viscosity - Method by Stabinger type viscometer (ISO 23581:2024)

60.60 Standard published

DPS/KT 19 more