SIST EN 60094-2:1999

SLOVENSKI STANDARD
SIST EN 60094-2:1999
01-april-1999
Magnetic tape sound recording and reproducing systems -- Part 2: Calibration
tapes (IEC 60094-2:1994)
Magnetic tape sound recording and reproducing systems -- Part 2: Calibration tapes
Systeme für Tonaufzeichnung und -wiedergabe auf Magnetband -- Teil 2: Bezugsbänder
Systèmes d'enregistrement et de lecture du son sur bandes magnétiques -- Partie 2:
Bandes magnétiques étalons
Ta slovenski standard je istoveten z: EN 60094-2:1995
ICS:
33.160.30 Avdio sistemi Audio systems
SIST EN 60094-2:1999 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 60094-2:1999

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SIST EN 60094-2:1999

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SIST EN 60094-2:1999

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SIST EN 60094-2:1999
CEI
NORME
IEC
INTERNATIONALE
94-2
INTERNATIONAL
Deuxième édition
STANDARD Second edition
1994-07
Systèmes d'enregistrement et de lecture
sur bandes magnétiques —
Partie 2:
Bandes magnétiques étalons
Magnetic tape recording and reproducing
systems —
Part 2:
Calibration tapes
réservés — Copyright — all rights reserved
© CEI 1994 Droits de reproduction
No part of this publication may be reproduced or utilized in
Aucune partie de cette publication ne peut être reproduite ni
any form or by any means, electronic or mechanical,
utilisée sous quelque forme que ce soit et par aucun pro-
including photocopying and microfilm, without permission
cédé, électronique ou mécanique, y compris la photocopie et
in writing from the publisher.
les microfilms, sans l'accord écrit de l'éditeur.
Genève, Suisse
Bureau Central de la Commission Electrotechnique Internationale 3, rue de Varembé
Commission Electrotechnique Internationale CODE PRIX
International Electrotechnical Commission PRICE CODE F
McKaymapoAHae 3neinporexHHVecnan HoMHccIt
IEC
Pour prix, voir catalogue en vigueur •
•
For price, see current catalogue

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SIST EN 60094-2:1999
IEC Publication 94-2
Publication 94-2 de la CEI
(Second edition - 1994)
(Deuxième édition - 1994)
Systèmes d’enregistrement et de lecture Magnetic tape sound recording
and reproducing systems –
du son sur bandes magnétiques –
Partie 2: Bandes magnétiques étalons Part 2: Calibration tapes
C O R R I G E N D U M 1
Cover page, title page, page 3 and page 5,
Page de couverture, page de titre, page 2 et
remplacer replace the existing title by the following
page 4, le titre existant par le
new amended title:
nouveau titre amendé suivant:
Magnetic tape sound recording
Systèmes d’enregistrement et
de lecture du son sur bandes and reproducing systems –
magnétiques –
Part 2: Calibration tapes
Partie 2: Bandes magnétiques
étalons
Mars 1995 March 1995

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SIST EN 60094-2:1999
– 3 –
94-2 ©IEC:1994
INTERNATIONAL ELECTROTECHNICAL COMMISSION
MAGNETIC TAPE RECORDING AND
REPRODUCING SYSTEMS —
2: Calibration tapes
Part
FOREWORD
The IEC (International Electrotechnical Commission) is a worldwide organization for standardization
1)
comprising all national electrotechnical committees (IEC National Committees). The object of the IEC is to
promote international cooperation on all questions concerning standardization in the electrical and
electronic fields. To this end and in addition to other activities, the IEC publishes International Standards.
Their preparation is entrusted to technical committees; any IEC National Committee interested in
the subject dealt with may participate in this preparatory work. International, governmental and
non-governmental organizations liaising with the IEC also participate in this preparation. The IEC
collaborates closely with the International Organization for Standardization (ISO) in accordance with
conditions determined by agreement between the two organizations.
The formal decisions or agreements of the IEC on technical matters, prepared by technical committees on
2)
which all the National Committees having a special interest therein are represented, express, as nearly as
possible, an international consensus of opinion on the subjects dealt with.
They have the form of recommendations for international use published in the form of standards, technical
3)
reports or guides and they are accepted by the National Committees in that sense.
In order to promote international unification, IEC National Committees undertake to apply IEC International
4)
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
International Standard IEC 94-2 has been prepared by sub-committee 60A: Sound
recording, of IEC technical committee 60: Recording.
This second edition cancels and replaces the first edition published in 1975, Amendment 1
of 1987 and Amendment 2 of 1991.
The text of this standard is based on the first edition of 1975, Amendment 1 (1987) and
Amendment 2 (1991) and the following documents:
Report on voting
DIS
60A(CO)160
60A(CO)153
Full information on the voting for the approval of this part can be found in the report on
voting indicated in the above table.
Annex A is for information only.

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SIST EN 60094-2:1999
94-2 © I EC:1994 – 5 –
MAGNETIC TAPE RECORDING AND
REPRODUCING SYSTEMS -
Part 2: Calibration tapes
1 Scope
This standard specifies the minimum requirements for calibration tapes for making adjust-
ormance of both professional
ment and comparative assessments of the reproducing pe rf
and domestic magnetic tape recording/reproducing equipment.
This standard applies to both lubricated and non-lubricated tapes, recorded across
specified parts or the full width of the tape.
2 Object
The object of this standard is to specify the contents, the format and the tolerances of
calibration tapes so that measurements made on any recording/reproducing equipment
using tapes manufactured in accordance with the requirements of this standard shall be
directly comparable.
3 General requirements
Each standard calibration tape shall have at least the following sections:
1) reference level;
2) azimuth;
3) amplitude/frequency response.
Each section shall be recorded at a recording angle of 90° ± 1', relative to the edge of the
tape.
Over the frequency range used, all of the octave frequencies of the preferred ISO/R 266
frequencies, relative to 1 000 Hz, shall be used. Additional frequencies shall be used from
the one-third octave. If further frequencies are required, one-sixth octave shall be applied.
Each section shall be announced and the official IEC languages are preferred.
At the beginning of the tape, the standard tape speed to which the calibration refers, the
characteristic to which the tape has been recorded and the date of recording shall be
announced, for instance "IEC calibration tape for 38,1 cm/s (15 in/s) recorded to a 35 gs
time constant in accordance with IEC Publication 94, first edition".

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SIST EN 60094-2:1999
94-2 ©IEC:1994 - 7 -
An announcement at the beginning of each section shall specify the content of that
section; for the reference level section, the short-circuit flux per unit track width; and for
the other sections, the short-circuit flux level relative to that of the reference level section;
for example:
- 1 000 Hz at 320 nWb/m.
Reference level section:
1 000 Hz at
...