Section 1 - General
1 Scope
2 Conformance
2.1 Magnetic tape cartridges
2.2 Generating drive
2.3 Receiving drive
3 Normative references
4 Terms and definitions
4.1 ac erase
4.2 algorithm
4.3 Average Signal Amplitude
4.4 azimuth
4.5 back surface
4.6 Beginning of Data (BOD)
4.7 Beginning of Tape (BOT)
4.8 bit cell
4.9 byte
4.10 cartridge
4.11 Channel bit
4.12 Cyclic Redundancy Check (CRC) character
4.13 End of Data (EOD)
4.14 End of Partition (EOP)
4.15 End of Tape (EOT)
4.16 Error Correcting Code (ECC)
4.17 File Mark
4.18 Logical Block
4.19 magnetic tape
4.20 Master Standard Reference Tape
4.21 Partition
4.22 physical recording density
4.23 Reference Field
4.24 Secondary Standard Reference Tape (SSRT)
4.25 Set Mark
4.26 Standard Reference Amplitude (SRA)
4.27 Standard Reference Current (Ir)
4.28 Tape Reference Edge
4.29 Test Recording Current (TRC)
4.30 Track
4.31 Typical Field
5 Conventions and Notations
5.1 Representation of numbers
5.2 Names
6 Acronyms
7 Environment and Safety
7.1 Testing environment
7.2 Operating environment
7.3 Storage environment
7.4 Transportation
7.5 Safety
7.6 Flammability
Section 2 - Requirements for the case
8 Dimensional and mechanical characteristics of the case
8.1 General
8.2 Overall dimension
8.3 Holding areas
8.4 Cartridge insertion
8.5 Window
8.6 Loading grips
8.7 Label areas
8.8 Datum areas and datum holes
8.9 Support areas
8.10 Recognition holes
8.11 Write-inhibit hole
8.12 Pre-positioning surfaces
8.13 Lid
8.14 Cartridge reel lock
8.15 Reel access holes
8.16 Interface between the reels and the drive spindles
8.17 Light path
8.18 Position of the tape in the case
8.19 Tape path zone
8.20 Tape access cavity
8.21 Tape access cavity clearance requirements
Section 3 - Requirements for the Unrecorded Tape
9 Mechanical, physical and dimensional characteristics of
the tape
9.1 Materials
9.2 Length
9.3 Width
9.4 Discontinuities
9.5 Thickness
9.6 Longitudinal curvature
9.7 Cupping
9.8 Coating adhesion
9.9 Layer-to-layer adhesion
9.10 Tensile strength
9.11 Residual elongation
9.12 Electrical resistance of the recording surface
9.13 Tape winding
9.14 Light transmittance of tape
10 Magnetic recording characteristics
10.1 Test conditions
10.2 Typical Recording Current
10.3 Signal Amplitude
10.4 Resolution
10.5 Signal-to-Noise Ratio
10.6 Ease of erasure
10.7 Tape quality
Section 4 - Requirements for an Interchanged Tape
11 Track Format
11.1 General
11.2 Physical Logical Block Format
11.3 Track Packet format
11.4 Control packet format
11.5 Packet framing sync
12 Tape Format
12.1 Track elements
12.2 Data track format
12.3 Gap tracks
13 Method of recording
13.1 Physical recording density
13.2 Bit shift
13.3 Amplitude of Data Signals
14 Track geometry
14.1 General
14.2 Track pitch
14.3 Average track pitch
14.4 Track width
14.5 Track angle
14.6 Track length
14.7 Guard band
14.8 Azimuth angles
14.9 Track linearity
15 Layout of a tape
15.1 General
15.2 Beginning of Partition
15.3 Tape Header Record (THR)
15.4 Data area
15.5 Tape Directory Record
15.6 End of Data
15.7 End of Partition (EOP)
Annexes
Annex A (normative) - Measurement of Light Transmittance of
Tape and Leaders
Annex B (normative) - The Packet ECC
Annex C (normative) - The Segment ECC
Annex D (normative) - Generation of the Segment Overhead CRCs
Annex E (normative) - Generation of the Segment Data CRC
Annex F (normative) - Generation of the Packet CRC
Annex G (normative) - Representation of 8-bit bytes by 14-bit
patterns
Annex H (normative) - Measurement of bit shift
Annex J (normative) - Tape Count
Annex K (informative) - Recommendations for transportation