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BS 4231:1992

BS 4231:1992

Current

Current

The latest, up-to-date edition.

Classification for viscosity grades of industrial liquid lubricants

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

15-12-1992

Publisher

British Standards Institution

Committees responsible
National foreword
Introduction
Classification
1 Scope
2 Normative reference
3 Classification
4 Designation
Annex
A (informative) ISO viscosity classification with
     corresponding kinematic viscosities at various
     temperatures for differing viscosity indices
Tables
1 ISO viscosity classification
A.1 Untitled

Establishes a system of viscosity classification for industrial liquid lubricants and related fluids. Includes mineral oils used as lubricants, electric oils, hydraulic fluids and for other applications.

This International Standard establishes a system of viscosity classification for industrial liquid lubricants and related fluids. This includes mineral oils used as lubricants, hydraulic fluids, electrical oils and for other applications. The usual method for kinematic-viscosity determination is that specified in ISO 3104, but this may give anomalous results when used with non-Newtonian fluids (i.e. those whose coefficient of viscosity varies significantly with rate of shear). For such fluids, it is therefore important to state the particular method by which viscosity has been determined.

It is also recognized that there may be some pure chemicals and naturally occurring products, used as lubricants, which will not fall within this classification.

Committee
PTI/7
DevelopmentNote
Also numbered as ISO 3448 Supersedes 89/55379 DC and BS 4231(1982) (07/2005)
DocumentType
Standard
Pages
10
PublisherName
British Standards Institution
Status
Current

BS 2000-71(1990) : 1990 METHODS OF TEST FOR PETROLEUM AND ITS PRODUCTS - KINEMATIC VISCOSITY OF TRANSPARENT AND OPAQUE LIQUIDS AND CALCULATION OF DYNAMIC VISCOSITY

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Hardcopy - English
PDF - English
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