International Standards and Conformity Assessment for all electrical, electronic and related technologies



Reference EN 50446:2006
Title Straight thermocouple assembly with metal or ceramic protection tube and accessories
Project Number 14437
Abstract/Scope This standard applies to straight thermocouples for the nominal pressure level PN 1, which are made of standardized components (connection head, protection tube and thermocouple(s)). Details regarding the operational areas of the thermocouples and the use of protection tubes are part of this standard. Connection heads as well as stop flanges and threaded bushings for the mounting of the thermocouples are also part of this standard. Special designs are to be agreed upon between manufacturer and user.


Current Stage code 6060
Current Stage code date 2006-10-05
Current Stage code deadline 2007-09-01
Deadline date for vote 


Order Voucher  


IEC Technical Body IEC/SC 65B
Reference Document  
ICS 17.200.20 - Temperature-measuring instruments
Keywords Thermocouple assembly; Metal; Ceramic; Protection
Note Supersedes EN 50112:1994 and EN 50113:1994 * D139/C146: Maintenance allocated to SR 65B (Project initially handled by BTWG 109-2 (disbanded - D135/C276))
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2006-10-05 2007-09-01 export to doc file  EN  FR  DE
5099 2006-09-01 2007-01-01  
5060 2006-07-03 2006-07-17 export to doc file  EN
5020 2006-04-28 2006-06-30 export to doc file  EN
4099 2006-01-23 2006-04-16  
4060 2005-04-19 2005-06-19  
4020 2004-10-15 2005-04-15  
3099 2004-09-22 2005-02-22  
3020 2004-01-31 2004-08-28  
1099 2001-09-25 2002-03-25  
1000 2001-02-19 2001-09-25  

Implementation Dates

date of Ratification (DOR) (1) 2006-09-01
date of Availability (DAV) (2) 2006-10-05
date of Announcement (DOA) (3) 2007-03-01
date of Publication (DOP) (4) 2007-09-01
date of Withdrawal (DOW) (5) 2009-09-01


Supersedes EN 50112:1994
EN 50113:1994
Superseded by  
Normative reference (6)  

(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.