BS 4231:1992
Current
The latest, up-to-date edition.
Classification for viscosity grades of industrial liquid lubricants
Hardcopy , PDF
English
15-12-1992
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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.
| 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
|
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.
| 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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