EN 61868:1999
Current
The latest, up-to-date edition.
Mineral insulating oils - Determination of kinematic viscosity at very low temperatures
22-01-1999
Introduction
1 Scope
2 Normative references
3 Definitions
4 Principle
5 Apparatus
6 Calibration
7 Procedure
8 Expression of results
Figure 1 - Viscometer bath and accessories
Specifies a procedure for the determination of the kinematic viscosity of mineral insulating oils, both transparent and opaque, at very low temperatures, after a cold soaking period of at least 20 h, by measuring the time for a volume of liquid to flow under gravity throught a calibrated glass capillary viscometer. Applies at all temperatures to both Newtonian and non-Newtonian liquids having viscosities of up to 20 000 mm2/s.
| Committee |
CLC/SR 10
|
| DocumentType |
Standard
|
| PublisherName |
European Committee for Standards - Electrical
|
| Status |
Current
|
| Standards | Relationship |
| IEC 61868:1998 | Identical |
| NBN EN 61868 : 1999 | Identical |
| I.S. EN 61868:1999 | Identical |
| PN EN 61868 : 2002 | Identical |
| VDE 0370-15 : 1999 | Identical |
| NEN EN IEC 61868 : 1999 | Identical |
| UNE-EN 61868:1999 | Identical |
| BS EN 61868:1999 | Identical |
| SN EN 61868 : 1999 | Identical |
| DIN EN 61868 : 1999 | Identical |
| CEI EN 61868 : 1999 | Identical |
| NF EN 61868 : 1999 | Identical |
| EN 62701:2014 | Fluids for electrotechnical applications - Recycled mineral insulating oils for transformers and switchgears |
| BS EN 60296:2012 | Fluids for electrotechnical applications. Unused mineral insulating oils for transformers and switchgear |
| I.S. EN 62701:2014 | FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - RECYCLED MINERAL INSULATING OILS FOR TRANSFORMERS AND SWITCHGEARS |
| CEI EN 60296 : 2013 | FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - UNUSED MINERAL INSULATING OILS FOR TRANSFORMERS AND SWITCHGEAR |
| EN 60296:2012 | Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear |
| UNE-EN 60296:2012 | Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear |
| I.S. EN 60296:2012 | FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - UNUSED MINERAL INSULATING OILS FOR TRANSFORMERS AND SWITCHGEAR (IEC 60296:2012 (EQV)) |
| ISO 3105:1994 | Glass capillary kinematic viscometers — Specifications and operating instructions |
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