1 Scope
   1.1 Purpose
2 Conformance
   2.1 Magnetic tape cassettes
   2.2 Generating systems
   2.3 Receiving systems
3 Normative References
4 Definitions
   4.1 Auxiliary data
   4.2 Annotation record
   4.3 Annotation tracks
   4.4 Average Signal Amplitude (ASA)
   4.5 azimuth
   4.6 block
   4.7 byte
   4.8 Codeword Digital Sum (CDS)
   4.9 Data area
   4.10 Data area reference line
   4.11 Data area reference point
   4.12 Data field
   4.13 Digital Sum Variation (DSV)
   4.14 Dropout
   4.15 Erase
   4.16 Erasing field
   4.17 Equivalent reference edge
   4.18 flux transition spacing
   4.19 Helical (data) record
   4.20 Helical track
   4.21 Home track ID
   4.22 Inner code
   4.23 Leader
   4.24 Logical volume
   4.25 magnetic tape
   4.26 Master Standard Reference Tape
   4.27 Outer code
   4.28 physical recording density
   4.29 Postamble
   4.30 Preamble
   4.31 reference edge
   4.32 reference field
   4.33 Resolution
   4.34 Secondary Standard Reference Tape
   4.35 Sector
   4.36 Sector recording tolerance
   4.37 Standard Reference Amplitude
   4.38 Standard Reference Current
   4.39 Sync pattern
   4.40 Tape mark
   4.41 Tolerance zones
   4.42 track
   4.43 track angle
   4.44 Track Set
   4.45 Track Set ID (TSID)
   4.46 Volume set
5 Conventions and notations
   5.1 Representation of numbers
   5.2 Names
   5.3 Acronyms
6 Environmental and safety
   6.1 Testing environment
   6.2 Operating environment
   6.3 Cassette conditioning
   6.4 Storage environment
   6.5 Safety
7 Cassette
   7.1 General description
   7.2 Dimensions
   7.3 Identification holes
8 Tape mechanical and electrical properties
   8.1 Materials
   8.2 Tape width and tolerance
   8.3 Delta width
   8.4 Reference edge straightness
   8.5 Tape thickness
   8.6 Magnetic recording surface coating thickness
   8.7 Tape length
   8.8 Discontinuity
   8.9 Longitudinal curvature
   8.10 Out-of-plane distortions
   8.11 Leaders, trailers and splices
   8.12 Tape wind
   8.13 Tensile yield force
   8.14 Inhibitor tape
   8.15 Electrical resistance of the magnetic coating and
        back surface
   8.16 Layer-to-layer adhesion
   8.17 Coating adhesion
   8.18 Residual elongation
   8.19 Tape cupping
   8.20 Light transmittance of the tape and the leader
9 Magnetic properties
   9.1 Magnetic coating
   9.2 Ease of erasure
   9.3 Average signal amplitude
   9.4 Resolution
   9.5 Typical field
   9.6 Tape quality
10 Format for helical tracks
   10.1 General description of the write data path (figure 4)
   10.2 Formation of a Logical Track Set
   10.3 Data structuring
   10.4 Track types
   10.5 Subcode generation
   10.6 Information processing
   10.7 Error protection of data
11 Formation of a sector
   11.1 Overview
   11.2 Sector details
   11.3 Recording method
   11.4 Record optimization
   11.5 Helical tracks
   11.6 Longitudinal tracks
   11.7 Recorded information
   11.8 Write retry sequence
   11.9 Append file operation
Annexes
A Measurement of light transmittance
B Tables
C Append file and file termination
D Examples of subcode data fields in sequences of track type
E Recommendations for transportation
F Error management systems
G Secondary reference tape user procedure
H Example of data record termination
I Physical to logical data structure mapping
Bibliography