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



Reference EN 62494-1:2008
Title Medical electrical equipment - Exposure index of digital X-ray imaging systems - Part 1: Definitions and requirements for general radiography
Project Number 21577
Abstract/Scope IEC 62494-1:2008 specifies definitions and requirements for the exposure index of images acquired with digital X-ray imaging systems. IEC 62494-1:2008 is applicable to digital X-ray imaging systems used in general radiography for producing projection X-ray images for general applications, such as, but not exclusively: - computed radiography (CR) systems based on stimulable phosphors; - flat-panel detector based systems; - charge-coupled device (CCD) based systems. Image intensifier based systems and systems for mammographic or dental application are not covered in this first edition. IEC 62494-1:2008 defines the exposure index only for images generated with a single irradiation event. Images generated from multiple irradiations (e.g., tomosynthetic or dual-energy images, multiple views on a single CR plate) are not covered.


Current Stage code 6060
Current Stage code date 2008-11-19
Current Stage code deadline 2009-07-01
Deadline date for vote  


Order Voucher  


IEC Technical Body IEC/SC 62B
Reference Document IEC 62494-1:2008 (EQV)
ICS 11.040.50 - Radiographic equipment
Keywords Medical; Exposure index; Digital; X-ray; Imaging
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2008-11-19 2009-07-01 export to doc file  EN  FR  DE
5099 2008-10-01 2008-12-01  
5061 2008-08-26 2008-10-01  
5060 2008-06-13 2008-07-01 export to doc file  EN
5020 2007-11-23 2008-04-25  
1090 2007-11-20 2007-11-23  

Implementation Dates

date of Ratification (DOR) (1) 2008-10-01
date of Availability (DAV) (2) 2008-11-19
date of Announcement (DOA) (3) 2009-01-01
date of Publication (DOP) (4) 2009-07-01
date of Withdrawal (DOW) (5) 2011-10-01


Superseded by  
Normative reference (6) IEC/TR 60788:2004

(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.