BS EN 60814:1998
Current
The latest, up-to-date edition.
Insulating liquids. Oil-impregnated paper and pressboard. Determination of water by automatic coulometric Karl Fischer titration
Hardcopy , PDF
English
15-02-1998
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1 General
1.1 Scope
1.2 Normative references
2 Direct titration for low viscosity liquids
2.1 Field of application
2.2 Chemistry
2.3 Apparatus
2.4 Reagents and auxiliary materials
2.5 Preparation of the apparatus
2.6 Sampling methods
2.7 Procedure
2.8 Calculation of the result
2.9 Report
2.10 Precision
3 Evaporative stripping method for high viscosity liquids
3.1 Field of application
3.2 Outline of the method
3.3 Apparatus and reagents
3.4 Procedure
3.5 Calculation of water content
3.6 Report
4 Determination of water in oil-impregnated paper and
pressboard
4.1 Field of application
4.2 Determination of water after previous extraction
with methanol
4.3 Determination by direct titration
4.4 Evaporative stripping method
Figures
1 Block diagram of automatic titrator
2 Suitable titration vessel assembly
3 Block diagram of automatic titrator and evaporation
stripping unit
4 Evaporator glass vessel with heater
5 Methanol container and extraction tube
Annexes
A Method for sampling of oil-impregnated paper and
pressboard
ZA (normative) Normative references to international
publications with their corresponding European
publications
Covers procedures for determining water content of insulating liquids and in oil-impregnated cellulosic insulation with coulometrically generated Karl Fischer reagent.
| Committee |
GEL/10
|
| DevelopmentNote |
Also numbered as IEC 60814 Supersedes BS 6725(1986) and 93/215953 DC (11/2005)
|
| DocumentType |
Standard
|
| Pages |
24
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This International Standard describes methods for the determination of water in insulating liquids and in oil-impregnated cellulosic insulation with coulometrically generated Karl Fischer reagent.
The method in clause 2 is applicable to water concentrations above 2 mg/kg in liquids having viscosity of less than 100 mm2/s at 40 °C.
The test method in clause 3, where water is extracted by means of a nitrogen stream, is the preferred method for insulating liquids of viscosity higher than 100 mm2/s.
Clause 4 describes methods for the determination of water content in oil-impregnated paper and pressboard over the range 0,1 % to 20 % by mass.
| Standards | Relationship |
| EN 60814:1997 | Identical |
| I.S. EN 60814:1998 | Identical |
| NF EN 60814 : 1998 | Identical |
| DIN EN 60814 : 1999 | Identical |
| NBN EN 60814 : 1998 | Identical |
| SN EN 60814 : 1997 | Identical |
| UNE-EN 60814:1999 | Identical |
| BS 5730:2001 | Monitoring and maintenance guide for mineral insulating oils in electrical equipment |
| 08/30167496 DC : DRAFT FEB 2008 | BS 148 - RECLAIMED MINERAL INSULATING OIL FOR TRANSFORMERS AND SWITCHGEAR - SPECIFICATION |
| BS 148:2009 | Reclaimed mineral insulating oil for transformers and switchgear. Specification |
| ISO 595-2:1987 | Reusable all-glass or metal-and-glass syringes for medical use Part 2: Design, performance requirements and tests |
| IEC 60475:2011 | Method of sampling insulating liquids |
| IEC 60567:2011 | Oil-filled electrical equipment - Sampling of gases and analysis of free and dissolved gases - Guidance |
| ISO 595-1:1986 | Reusable all-glass or metal-and-glass syringes for medical use Part 1: Dimensions |
| EN 60567:2011 | OIL-FILLED ELECTRICAL EQUIPMENT - SAMPLING OF GASES AND ANALYSIS OF FREE AND DISSOLVED GASES - GUIDANCE (IEC 60567:2011) |
| EN ISO 595-2:1994 | Reusable all-glass or metal-and-glass syringes for medical use - Part 2: Design, performance requirements and tests (ISO 595-2:1987) |
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