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Publication details

Publication CODE Title
NBN EN 60970:2008 (2007-08) INSULATING LIQUIDS METHODS FOR COUNTING AND SIZING PARTICLES
 
Price Excl. VAT Total number of pages, tables and drawings
25.00 € 3 P..
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  C27  (ELECTRICAL MANUFACTURE - ELECTROTECHNICAL MATERIALS FLUIDES FOR ELECTROTECHNICAL APPLICATIONS)
Available files
ATTENTION: Belgian registered standards (NBN EN or NBN HD) are generally only available in English or French. Only the cover page is translated and the document itself is in English or in French.

Very important notice: 98% of the text of the NBN EN 55XXX, NBN EN 6XXXX comes from the IEC text which is NOT included. This text can be ordered here: IEC 60970:2007. For the series NBN EN 50XXX, the standards are however complete.

DE version
EN version
FR version
NL version
Status
Status Registered trilingual Belgian standard EN or FR or DE
Situation Currently active
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 2007-08-01
NBN Approval 2008-01-29
Registration 85238
ICS-Code (International Standards Classification) 17.220.99 , 29.040.10
NBN Status New
Date of ratification (d.o.r.) 2007-08-01
Date of availability (d.a.v.) 2007-08-31
Date of announcement (d.o.a.) 2007-11-01
Date of publication (d.o.p.) 2008-05-01
Date of withdrawal former edition (d.o.w.) 2010-08-01
Correspondences with international standards
Relation International standard Date
is identical to EN 60970:2007 2007-08-31
is identical to EN 60970:2007/corrigendum Jan. 2008 2008-01-31
is identical to IEC 60970:2007/ed. 2.0 2007-07-16
Relations to belgian/foreign publications
Type Origin Code Date
Standard Foreign IEC 60475
Standard Foreign ISO 4406
Standard Foreign ISO 4407
Standard Foreign ISO 5884
Standard Belgium NBN EN 50353