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



Reference EN 55011:1991
Title Limits and methods of measurement of radio disturbance characteristics of industrial, scientific and medical (ISM) radio-frequency equipment
Project Number 4380
Abstract/Scope The limits and methods of measurement laid down in this publication apply to industrial, scientific and medical (ISM) equipment as defined in Clause 3, and to spark erosion equipment.The assessment of conformity of equipment tested on a test site shall be in accordance with the specifications of Clause 6. For equipment in series production, there shall be 80% confidence that at least 80% of manufactured items comply with the limits given. The statistical assessment procedure is specified in subclause 6.3. For small scale production the application of the statistical assessment may not always be economical. In such cases the assessment procedure contained in subclause 6.2 may be applied. Measurement results obtained for an equipment measured in its place of use and not on a test site shall relate to that installation only, and shall not be considered representative of any other installation and so shall not be used for the purpose of a statistical assessment. Procedures are given for the measurement of radio frequency disturbances and limits are laid down within the frequency range 9 kHz to 400 GHz. 1.4 Requirements for lighting apparatus are contained in EN 55015.


Current Stage code 6060
Current Stage code date 1991-03-12
Current Stage code deadline 1991-09-15
Deadline date for vote  


Order Voucher 10 952/518


IEC Technical Body IEC/SC CISPR/B
Reference Document CISPR 11:1990 (MOD)
ICS 33.100 - Electromagnetic compatibility (EMC)
Keywords Electromagnetic compatibility; Radio frequency equipment; Disturbance; ISM
Note Superseded by EN 55011:1998 * Published under SC 210A disbanded by D115/098
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 1991-03-12 1991-09-15  
5099 1989-06-12 1989-07-12  
5020 1988-11-30 1989-03-01  
4099 1987-11-18 1988-04-30  
4020 1987-05-05 1987-09-16  
4093 1986-11-04 1987-04-15  
4020 1986-06-27 1986-10-31  
3099 1985-10-13 1986-06-01  
3020 1985-07-01 1985-12-31  

Implementation Dates

date of Ratification (DOR) (1) 1989-06-12
date of Availability (DAV) (2) 1991-03-12
date of Announcement (DOA) (3) 1989-12-01
date of Publication (DOP) (4) 1991-09-15
date of Withdrawal (DOW) (5) 1991-09-15


Supersedes HD_NO 344:200X
Superseded by EN 55011:1998
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.