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IEC 60098
Edition 4.0 2020-01
INTERNATIONAL
STANDARD
Analogue audio disk records and reproducing equipment
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IEC 60098
Edition 4.0 2020-01
INTERNATIONAL
STANDARD
Analogue audio disk records and reproducing equipment
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.160.30 ISBN 978-2-8322-7721-8
– 2 – IEC 60098:2020 © IEC 2020
CONTENTS
FOREWORD . 5
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 General . 8
4.1 Scales for graphical presentation of data . 8
4.2 Scales for frequency characteristics . 8
5 The disk . 8
5.1 Types of disk records . 8
5.2 Dimensions of disks . 9
5.3 Unbalance of disks . 10
5.4 Direction of rotation . 11
5.5 Direction of recording . 11
5.6 Speed of rotation . 11
6 The groove . 11
6.1 Direction of groove modulation . 11
6.2 Arrangement of stereophonic channels . 12
6.2.1 Channel orientation . 12
6.2.2 Channel phasing . 12
6.2.3 Channel levels . 12
6.2.4 Channel polarity . 12
6.3 Groove dimensions . 12
6.4 Lead-in groove . 12
6.5 Outer diameter of recorded surface . 12
6.6 Eccentricity of groove spiral . 12
6.7 Marker space . 13
6.8 Lead-out groove . 13
6.9 Finishing groove . 13
7 Label information . 13
8 Recording and reproducing characteristics . 13
8.1 Recording characteristic . 13
8.1.1 Standard recording characteristic . 13
8.1.2 Recording chain tolerances . 14
8.2 Reproducing characteristic . 14
8.2.1 Standard reproducing characteristic . 14
8.2.2 Reproducing chain tolerances . 15
9 Reproducing equipment . 15
9.1 Speed of rotation . 15
9.2 Automatic pickup lifting . 15
9.3 Reproducing stylus . 15
9.3.1 Clearances . 15
9.3.2 Included angle (spherical styli only). 15
9.3.3 Stylus rake (non-spherical styli only) . 16
9.4 Arrangement of stereophonic channels . 16
9.4.1 Channel orientation . 16
9.4.2 Channel phasing . 16
9.4.3 Channel gain . 16
9.4.4 Channel polarity . 16
9.5 Interchangeability of pickup cartridges . 16
9.5.1 Dimensions . 16
9.5.2 Colour coding of connecting wires between pickup cartridge and pickup
arm . 17
9.5.3 Colour coding or marking of pickup cartridge terminals . 17
10 Measurements . 17
10.1 Standard measurement conditions . 17
10.1.1 General . 17
10.1.2 Environment . 18
10.1.3 Electric power supply . 18
10.1.4 Pickup operation . 18
10.1.5 Test records . 18
10.2 Methods of measurement . 18
10.2.1 General . 18
10.2.2 Maximum apparent power consumption . 19
10.2.3 Mean deviation from rated speed . 19
10.2.4 Wow and flutter . 20
10.2.5 Maximum start time to reach actual or rated speed . 20
10.2.6 Signal/rumble ratio . 20
10.2.7 Signal/hum ratio . 21
10.2.8 Channel sensitivity at 1 000 Hz . 22
10.2.9 Channel unbalance at 1 000 Hz (stereo use only) . 22
10.2.10 Separation at 1 000 Hz (stereo use only) . 23
10.2.11 Frequency response . 23
10.2.12 Tracking ability . 24
11 Information required from manufacturers of record playing units . 25
11.1 General . 25
11.2 Identification . 25
11.3 Structure . 25
11.3.1 Pickup cartridge . 25
11.3.2 Drive system . 25
11.3.3 Space requirements for unmounted units . 26
11.3.4 Operational modes . 26
12 Performance claims . 26
12.1 General . 26
12.2 Maximum apparent power consumption of the unit . 26
12.3 Speed of rotation . 26
12.4 Signal/rumble ratio . 27
12.5 Signal/hum ratio . 27
12.6 Channel sensitivity at 1 000 Hz . 27
12.7 Channel unbalance at 1 000 Hz (stereo use only) . 27
12.8 Separation at 1 000 Hz (stereo use only) . 27
12.9 Frequency response . 27
12.10 Tracking ability . 27
Annex A (informative) Multipurpose test records . 28
A.1 Available multi-purpose test record . 28
– 4 – IEC 60098:2020 © IEC 2020
A.2 Multi-purpose test record no longer available new but which may still be
used . 28
Annex B (normative) Test records for wow and flutter .
...