IEC-60970-2007.pdf
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1、 INTERNATIONAL STANDARD IEC CEI NORME INTERNATIONALE 60970 Second edition Deuxime dition 2007-07 Insulating liquids Methods for counting and sizing particles Isolants liquides Mthodes de dtermination du nombre et de la taille des particules Reference number Numro de rfrence IEC/CEI 60970:2007 Copyri
2、ght International Electrotechnical Commission Provided by IHS under license with IECLicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 08/07/2007 00:19:22 MDTNo reproduction or networking permitted without license from IHS -,-,- THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 200
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15、11 Fax: +41 22 919 03 00 Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 08/07/2007 00:19:22 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD
16、 IEC CEI NORME INTERNATIONALE 60970 Second edition Deuxime dition 2007-07 Insulating liquids Methods for counting and sizing particles Isolants liquides Mthodes de dtermination du nombre et de la taille des particules R Commission Electrotechnique Internationale International Electrotechnical Commis
17、sion PRICE CODE CODE PRIX For price, see current catalogue Pour prix, voir catalogue en vigueur Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 08/07/2007 00:19:22 MDTNo reproduction or net
18、working permitted without license from IHS -,-,- 2 60970 IEC:2007 CONTENTS FOREWORD.3 INTRODUCTION.5 1 Scope.6 2 Normative references .6 3 General caution, health, safety and environmental protection .6 4 Significance7 5 Comparison and limitation of the methods 7 6 Types and identification of partic
19、les8 7 Sampling 8 7.1 General remarks8 7.2 Sampling vessels 9 7.3 Cleaning of sampling bottles .9 7.4 General directions for sampling .9 7.5 Sampling procedure 10 7.6 Labelling of samples10 7.6.1 Samples from tanks.10 7.6.2 Samples from electrical equipment 10 8 Preparation of the samples for analys
20、is 10 9 Method A Automatic particle size analyzer.11 9.1 Summary of method 11 9.2 Apparatus and auxiliary materials11 9.3 Calibration procedures 11 9.4 Preparation of the apparatus for counting12 9.5 Preparation of sample before counting 12 9.6 Preparation of sample for counting12 9.7 Counting proce
21、dures .12 9.8 Report.13 9.9 Precision.13 9.10 Repeatability .13 9.11 Reproducibility 13 10 Method B Optical microscopy 14 10.1 Principle14 10.2 Procedure by transmitted light.14 10.3 Procedure by incident light 14 Annex A (informative) Use of syringes as sampling vessels .15 Annex B (informative) Ca
22、libration of the automatic particle counters17 Bibliography18 Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 08/07/2007 00:19:22 MDTNo reproduction or networking permitted without license
23、from IHS -,-,- 60970 IEC:2007 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ INSULATING LIQUIDS METHODS FOR COUNTING AND SIZING PARTICLES FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees
24、 (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Repo
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