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 |
|
|
