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Reference EN 61868:1999
Title Mineral insulating oils - Determination of kinematic viscosity at very low temperatures
Project Number 12252
Abstract/Scope Specifies a procedure for the determination of the kinematic viscosity of mineral insulating oils, both transparent and opaque, at very low temperatures, after a cold soaking period of at least 20 h, by measuring the time for a volume of liquid to flow under gravity throught a calibrated glass capillary viscometer. Applies at all temperatures to both Newtonian and non-Newtonian liquids having viscosities of up to 20 000 mm2/s.


Current Stage code 6060
Current Stage code date 1999-01-22
Current Stage code deadline 1999-10-01
Deadline date for vote  


Order Voucher  


IEC Technical Body IEC/TC 10
Reference Document IEC 61868:1998 (EQV)
ICS 17.220.99 - Other standards related to electricity and magnetism
29.040.10 - Insulating oils
Keywords Mineral insulating oil; Kinematic viscosity; Very low temperature
Note EN following parallel vote
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 1999-01-22 1999-10-01 export to doc file  EN
5099 1999-01-01 1999-02-01  
5062 1998-11-03 1999-01-01  
5020 1998-06-26 1998-09-15  
1090 1998-06-22 1998-06-26  

Implementation Dates

date of Ratification (DOR) (1) 1999-01-01
date of Availability (DAV) (2) 1999-01-22
date of Announcement (DOA) (3) 1999-04-01
date of Publication (DOP) (4) 1999-10-01
date of Withdrawal (DOW) (5) 2001-10-01


Superseded by  
Normative reference (6) ISO 3104:1994
ISO 3105:1994

(1) Date of ratification (dor) date when the Technical Board notes the approval of an EN (and HD for CENELEC), from which time the standard may be said to be approved

(2) Date of availability (dav) date when the definitive text in the official language versions of an approved CEN/CENELEC publication is distributed by the Central Secretariat

(3) Date of announcement (doa) latest date by which the existence of an EN (and HD for CENELEC), a TS or a CWA has to be announced at national level

(4) Date of publication (dop) latest date by which an EN has to be implemented at national level by publication of an identical national standard or by endorsement

(5) Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn

(6) This list of normative references is purely indicative. The only official list of normative reference is the list of the published standard.