• There are no items in your cart

BS EN 60814:1998

Current

Current

The latest, up-to-date edition.

Insulating liquids. Oil-impregnated paper and pressboard. Determination of water by automatic coulometric Karl Fischer titration

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

15-02-1998

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.

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.

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

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

View more information
€216.35
Excluding VAT

Access your standards online with a subscription

Features

  • Simple online access to standards, technical information and regulations.

  • Critical updates of standards and customisable alerts and notifications.

  • Multi-user online standards collection: secure, flexible and cost effective.