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



Reference FprEN 60627:2013
Title Diagnostic X-ray imaging equipment - Characteristics of general purpose and mammographic anti-scatter grids
Project Number 23735
Abstract/Scope IEC 60627:2013 is applicable to anti-scatter grids used in medical diagnostic X-ray imaging equipment. Anti-Scatter Grids are used to reduce the incidence of scattered radiation, produced particularly in the body of the patient, upon the image reception area and thus to improve the contrast of the X-ray pattern. This International Standard specifies the definitions, determination and indication of characteristics of anti-scatter grids. In this standard only linear grids are considered. Since at present only focused grids are used in mammography, this standard is restricted to focused grids where mammographic anti-scatter grids are concerned. This standard is not intended to be applied for acceptance tests. This standard does not cover the homogeneity of performance over the area of a grid. This standard is intended to be applied for the determination of the characteristics of anti-scatter grids under test conditions. These conditions are not usually available at the site of the responsible organization. This third edition cancels and replaces the second edition published in 2001, and constitutes a technical revision. In this revision calcium tungstate phosphor fluorescent screens, which are no longer available, have been replaced by gadolinium oxysulphide (GOS) fluorescent screens. Further, a new quality parameter is introduced: the Image Improvement Factor or Q-factor, which better describes the properties of the anti-scatter grid, especially for digital detector applications. Further differences between this third edition and the previous second edition are: - new instrumentation is prescribed for measurements of the transmission of primary radiation, the transmission of scattered radiation and the transmission of total radiation, because fluorescent screens made of calcium tungstate phosphors are outdated and are no longer available; - the definition of the phantom used for measurements of the transmission of primary radiation, the transmission of scattered radiation and the transmission of total radiation is modified and references to IEC 61267 are omitted; - and the radiation conditions used for the measurements have been adapted and are now the RQR and RQR-M conditions specified in IEC 61267:2005.
Approval stage


Current Stage code 5091
Current Stage code date 2013-09-30
Current Stage code deadline  
Deadline date for vote  


Directive(s) MDD (93/42/EEC)
Mandate(s) M/295
Order Voucher  


IEC Technical Body IEC/SC 62B
Reference Document IEC 60627:2013 (EQV)
ICS 11.040.50 - Radiographic equipment
Keywords Imaging; X-ray; Diagnostic; Mammography; Anti-scatter grid
Note Will supersede EN 60627:2001 * Awaiting outcome of RVC before further processing
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
5091 2013-09-30    
5060 2013-06-17 2013-07-08 export to doc file  EN
5020 2013-04-12 2013-06-14  
3090 2013-04-09 2013-04-12  
5060 2012-02-13 2012-03-05 export to doc file  EN
5020 2011-09-02 2012-02-03  
1090 2011-08-30 2011-09-02  

Implementation Dates

date of Ratification (DOR) (1)  
date of Availability (DAV) (2)  
date of Announcement (DOA) (3) dor + 3 months
date of Publication (DOP) (4) dor + 9 months
date of Withdrawal (DOW) (5) dor + 36 months


Supersedes EN 60627:2001
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.