Publication details
| Publication CODE |
Title |
| NBN EN 60450:2004 (2004-06) |
MEASUREMENT OF THE AVERAGE VISCOMETRIC DEGREE OF POLYMERIZATION OF NEW AND AGED CELLULOSIC ELECTRICALLY INSULATING MATERIALS |
| |
| Price Excl. VAT |
Total number of pages, tables and drawings |
|
25.00 €
|
3 P.. |
Description
Describes a standardized method for the determination of the average viscometric degree of polymerization (DPv) of new and aged cellulosic electrically insulating materials. It may be applied to all cellulosic insulating materials such as those used in transformer, cable or capacitor manufacturing. The methods described can also be used for the determination of the intrinsic viscosity of solutions of chemically modified kraft papers, provided that these dissolve completely in the selected solvent. Caution should be taken if the method is applied to loaded kraft papers. Note: Within a sample of material, all the cellulose molecules do not have the same degree of polymerization so that the mean value measured by viscometric methods is not necessarily the same as that which may be obtained by, for instance, osmotic or ultra centrifuging methods. Experience has indicated the need for improved description of the experimental method. It describes a revised procedure that overcomes the limitations of the first edition.
|
| Class |
C26
(ELECTRICAL MANUFACTURE - ELECTROTECHNICAL MATERIALS INSULATING MATERIALS)
|
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 60450:2004.
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 |
15E
METHODS OF TEST (MERGED INTO TC 112)
|
| Responsible |
Monsieur TOLLET Philippe
B-1030
BRUXELLES - BRUSSEL
|
Approval
| BEC Approval |
2004-06-01 |
| NBN Approval |
2004-08-31 |
| Registration |
55206 |
| ICS-Code (International Standards Classification) |
29.035.01
, 17.220.99
|
| NBN Status |
Adapted |
|
| Date of ratification (d.o.r.) |
2004-06-18 |
| Date of availability (d.a.v.) |
2004-06-18 |
| Date of announcement (d.o.a.) |
2004-09-01 |
| Date of publication (d.o.p.) |
2005-03-01 |
| Date of withdrawal former edition (d.o.w.) |
2007-06-01 |
|
Correspondences with international standards
| Relation |
International standard |
Date |
| is identical to |
EN 60450:2004
|
2004-06-01 |
| is identical to |
IEC 60450:2004/ed. 2.0
|
2004-04-01 |
Relations to belgian/foreign publications
| Type |
Origin |
Code |
Date |
| Standard |
Foreign |
ISO 287 |
|
| Standard |
Foreign |
ISO 3105 |
|
| Standard |
Belgium |
NBN EN 60814 |
1996-01-14 |
|
