Account:  - Login  |  Webstore  |  Shopping basket cart
English  |  Français  |  Nederlands

Publication details

Publication CODE Title
IEC 60970:2007 (2007-07) INSULATING LIQUIDS - METHODS FOR COUNTING AND SIZING PARTICLES
 
Price Excl. VAT Total number of pages, tables and drawings
122.00 € 37.
Description
Describes the sampling procedures and methods for the determination of particle concentration and size distribution. Three methods are specified. One uses an automatic particle size analyser, working on the light interruption principle. The other two use an optical microscope, in either the transmitted light or incident light mode, to count particles collected on the surface of a membrane filter. The optical microscope methods are described in ISO 4407. All three methods are applicable to both used and unused insulating liquids. Annex A contains an alternative sampling procedure using a syringe and Annex B reports a reference for the calibration of automatic particle counters. The significant technical changes with respect to the previous edition are as follows: - new calibration procedures for automated laser particle; - three figures contamination code; - new procedure of sample pre-treatment when automated laser counter method are used.
Class  C990  (IEC PUBLICATIONS IEC PUBLICATIONS)
Available files
EN/FR version

Status
Status IEC PUBLICATION
Situation Currently active
Replaces  IEC 60970:1989
Origin
Committee TC 10
FLUIDS FOR ELECTROTECHNICAL APPLICATIONS
Responsible Monsieur DE LEEUW Thierry, Technical Officer
Diamant Building Bd Auguste Reyers, 80
1030  BRUXELLES
Phone: +32 2 706 85 72
E-mail: thierry.deleeuw@ceb-bec.be
Approval
BEC Approval 2007-07-16
ICS-Code (International Standards Classification) 17.220.99 , 29.040.10
IEC publication date 2007-07-16
IEC stability date 2022-12-31
IEC last modification date 2017-11-30