PD IEC/TR 61946:2007
Current
The latest, up-to-date edition.
Mineral insulating oils. Characterization of paraffinic /naphthenic nature. Low temperature differential scanning calorimetry (DSC) test method
Hardcopy , PDF
English
23-02-2007
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INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Test method
5 Interference
6 Apparatus
7 Sampling
8 Calibration
9 Procedure
10 Calculations - Classification of oils
11 Report
Annex A (informative) Calculation of transition temperatures
Bibliography
Specifies a test method for the classification of mineral insulating oils as either paraffinic or naphthenic, by means of low-temperature differential scanning calorimetry (DSC).
| Committee |
GEL/10
|
| DocumentType |
Standard
|
| Pages |
16
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
Describes a test method for the classification of mineral insulating oils as either paraffinic or naphthenic, by means of low-temperature differential scanning calorimetry (DSC). For the purpose of this technical report, the typical operating temperature range extends from -100 °C to +100 °C. The temperature range can be extended, depending upon the instrumentation used. The method is applicable to mineral insulating oils obtained from petroleum crudes. It may be also applied to mineral oils containing pour point depressants, as these additives do not prevent the formation of paraffin crystals but only the growing of such micro-crystals.
| Standards | Relationship |
| IEC TR 61946:2007 | Identical |
| ISO 3016:1994 | Petroleum products Determination of pour point |
| IEC 60475:2011 | Method of sampling insulating liquids |
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