ISO/IEC INTERNATIONAL STANDARD 17913 First edition 2000-06-15 Information technology 12,7 mm 128-track magnetic tape cartridge for information interchange Parallel serpentine format Technologies de I'information - Cartouches de bande magnétique de 12,7 mm, 128 pistes pour I'échange d'information - Format serpentant parallele Reference number ISO/IEC 17913:2000(E) E( @ ISO/IEC 2000 HS under I without license from IHS Not for Resale ISO/IEC 17913:2000(E) PDFdisclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The Iso Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event ISO/IEC2000 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Case postale 56CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 734 10 79 E-mail [email protected] Web www.iso.ch Printed in Switzerland @ ISO/IEC 2000 - All rights reserved ermitted without license from IHS Not for Resale ISO/IEC 17913:2000(E) Contents Page Section 1 - General 1 1 Scope 1 2 Conformance 1 2.1 Magnetic tape cartridge 1 2.2 Generating system 1 2.3 Receiving system 1 Normative references 1 .4 Definitions 1 4.1 algorithm 1 4.2 anhysteretic erase 1 4.3 average signal amplitude 2 4.4 azimuth 2 4.5 back surface 2 4.6 beginning of partition (BOP) 2 4.7 beginning of tape (BOT) ２２２２２２ 4.8 cartridge 4.9 cyclic redundancy check (CRC) character 4.10 end of tape (EOT) 4.11 error-correcting code (ECC) 4.12 error-detecting code (EDC) 4.13 File Mark 222 4.14 flux transition position 4.15 flux transition spacing 4.16 half-wrap -２2２2２2２2- 4.17 logical block 4.18 logical forward 4.19 logical reverse 4.20 magnetic tape 4.21 mark tach count 4.22 Master Standard Reference Tape 4.23 physical recording density 4.24 pre-record condition 222 4.25 recorded element 4.26 Reference Field 4.27 resync character 2２2 4.28 SDM set 4.29 Secondary Standard Reference Tape (SSRT) 4.30 servo track 33 4.31 Standard Reference Amplitude (SRA) 4.32 Standard Reference Current (Ir) 3 4.33 Test Recording Current (Im ) 3 4.34 track 3 4.35 track group 3 4.36 trailer 3 4.37 Typical Field 3 4.38 write equalisation 3 iii THS under ense with I Not for Resale ISO/IEC 17913:2000(E) 5 Conventionsandnotations 3 5.1 Representation of numbers 3 5.2 Dimensions 3 5.3 Names 3 5.4 Acronyms 3 6 Environment and safety 4 6.1 Cartridge and tape testing environment 4 6.2 Cartridge operating environment 4 6.3 Cartridge storage environment 4 6.4 Safety 5 6.4.1 Safeness 5 6.4.2 Flammability 5 6.5 Transportation 5 Section 2 - Requirements for the unrecorded tape 5 7 Mechanical and electrical requirements 5 7.1 Material 5 7.2 Tape length 5 7.3 Width 5 7.4 Total thickness 5 7.5 Base material thickness 5 7.6 Discontinuity 5 7.7 Longitudinal curvature 5 7.7.1 Requirement 5 7.7.2 Procedure 5 7.8 Out-of-Plane distortions 5 7.9 Cupping 6 7.9.1 Requirement 6 7.9.2 Procedure 6 7.10 Coefficient of dynamic friction 6 7.10.1 Requirements 6 7.10.2 Procedure 6 7.11 Coating adhesion 7 7.12 Layer-to-layer adhesion 7 7.12.1 Requirements 7 7.12.2 Procedure 7 7.13 Electrical resistance 8 7.13.1 Requirement 8 7.13.2 Proced