Insulating liquids - Quantitative determination of methanol and ethanol in insulating liquids

IEC TR 63025:2021(E) specifies two test methods for methanol and ethanol determination in insulating liquids.
Methanol (MeOH) and ethanol (EtOH) are two light alcohols generated during the degradation process of cellulosic materials. They are soluble in insulating liquids so they can be regarded as ageing tracers whose concentrations in oil reflect the degradation of insulating cellulosic materials in liquid-impregnated transformers.

General Information

Status
Published
Publication Date
11-Jul-2021
Current Stage
PPUB - Publication issued
Start Date
12-Aug-2021
Completion Date
12-Jul-2021
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IEC TR 63025:2021 - Insulating liquids - Quantitative determination of methanol and ethanol in insulating liquids
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IEC TR 63025
®

Edition 1.0 2021-07
TECHNICAL
REPORT

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Insulating liquids – Quantitative determination of methanol and ethanol in
insulating liquids
IEC TR 63025:2021-07(en)

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IEC TR 63025

®


Edition 1.0 2021-07




TECHNICAL



REPORT








colour

inside










Insulating liquids – Quantitative determination of methanol and ethanol in

insulating liquids


























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ICS 29.040.10 ISBN 978-2-8322-9990-6




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– 2 – IEC TR 63025:2021 © IEC 2021
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 8
4 Symbols and abbreviated terms . 9
5 Sampling . 10
6 Principle of the methods . 10
7 Method A – HS-GC-MS . 10
7.1 General . 10
7.2 Apparatus . 10
7.2.1 Analytical balance . 10
7.2.2 Headspace sampler .
...

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