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



Reference CWA 50611:2013
Title Flow batteries - Guidance on the specification, installation and operation
Project Number 23814
Abstract/Scope This CWA provides guidance on the specification, installation and operation of Flow Batteries. It facilitates the pre-commercial phase, when a potential client needs to compare technical requirements of different types of Flow Batteries, or simply needs to compare between Flow Batteries and conventional electricity storage devices. It gives potential clients confidence that the batteries are sufficiently robust to meet the requirements of the designated application. This CWA also provides guidance for conformity assessment bodies to benchmark the Flow Batteries’ conformity with existing directives and other regulations.


Current Stage code 6060
Current Stage code date 2013-04-19
Current Stage code deadline  
Deadline date for vote  


Mandate(s) M/490
Order Voucher  


IEC Technical Body  
Reference Document  
ICS 29.220.99 - Other cells and batteries
Note Circulated at BT level for info - the kick off meeting will take place on 2011-11-27 * Link to CLC/TC 21X and SR 95 (BT doc = BT139/DG8476/DV)*2013-03-18: Publication allocated to
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2013-04-19   export to doc file  EN
1099 2011-09-15 2011-11-27  

Implementation Dates

date of Ratification (DOR) (1)  
date of Availability (DAV) (2) 2013-04-19
date of Announcement (DOA) (3) -
date of Publication (DOP) (4) -
date of Withdrawal (DOW) (5) -


Superseded by  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of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn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