Mineral insulating oils. Characterization of paraffinic /naphthenic nature. Low temperature differential scanning calorimetry (DSC) test method

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

23-02-2007

Publisher

British Standards Institution

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).

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.

Committee	GEL/10
DocumentType	Standard
Pages	16
PublisherName	British Standards Institution
Status	Current

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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PD IEC/TR 61946:2007

Mineral insulating oils. Characterization of paraffinic /naphthenic nature. Low temperature differential scanning calorimetry (DSC) test method

Table of Contents

Abstract

Scope

General Product Information

International Equivalents

Standards Referencing This Book

Category

Subcategory