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

 

Project

Reference HD 556 S1:1991
Title Sound calibrators
Project Number 434
Abstract/Scope This standard specifies the performance requirements for three classes of sound calibrator: Class 0, Class 1, and Class 2 in decreasing order of accuracy under specified conditions - Instruments for use only over a reduced range of environmental conditions are distinguished by the marking "L" - The term "class" designates the degrees of accuracy of the sound calibrator itself nor with the calibration of any measuring device or system with which the sound calibrator may be used
Status
Withdrawn

Status

Current Stage code 6060
Current Stage code date 1991-01-22
Current Stage code deadline 1991-03-01
Deadline date for vote  

Legal

Directive(s)  
Mandate(s)  
Order Voucher  

Details

IEC Technical Body IEC/TC 29
Reference Document IEC 60942:1988 (EQV)
ICS  
Keywords Audio; Sound; Calibrator
Note Superseded by EN 60942:1998
A-Deviation(s)  
Special National Condition(s)  

Environment

Clause
Categories - Aspects
Product Life Cycle
Information

History

Stage
Date
Deadline Date
Documents
6060 1991-01-22 1991-03-01  
5099 1990-05-01 1990-07-11  
5020 1989-10-13 1990-01-31  
1599 1989-06-12 1989-10-26  
1520 1989-01-04 1989-04-15  

Implementation Dates

date of Ratification (DOR) (1) 1990-05-01
date of Availability (DAV) (2) 1991-01-22
date of Announcement (DOA) (3) 1990-09-01
date of Publication (DOP) (4) 1991-03-01
date of Withdrawal (DOW) (5) 1991-03-01

Relations

Supersedes  
Superseded by EN 60942:1998
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Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn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.