Section 1 - General
1 Scope
2 Conformance
2.1 Magnetic tape cartridges
2.2 Generating drive
2.3 Receiving drive
3 Normative references
4 Definitions
4.1 a.c. erase
4.2 algorithm
4.3 append point
4.4 Average Signal Amplitude
4.5 azimuth
4.6 back surface
4.7 bit cell
4.8 byte
4.9 cartridge
4.10 Channel bit
4.11 Cluster
4.12 Cyclic Redundancy Check (CRC) character
4.13 Digital Sum Variation (DSV)
4.14 Error Correcting Code (ECC)
4.15 File Mark
4.16 flux transition spacing
4.17 Logical Beginning of Partition (LBOP)
4.18 Logical Block
4.19 magnetic tape
4.20 Master Standard Reference Tape
4.21 Partition
4.22 Physical Beginning of Partition (PBOP)
4.23 Physical Beginning of Tape (PBOT)
4.24 Physical End of Partition (PEOP)
4.25 Physical End of Tape (PEOT)
4.26 physical recording density
4.27 Read Back Check (RBC)
4.28 Reference Field
4.29 Secondary Standard Reference Tape (SSRT)
4.30 Set Mark
4.31 Standard Reference Amplitude (SRA)
4.32 Standard Reference Current (Ir)
4.33 Tape Reference Edge
4.34 Test Recording Current (TRC)
4.35 Track
4.36 Typical Field
5 Conventions and Notations
5.1 Representation of numbers
5.2 Names
5.3 Reserved fields
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 Cartridge 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 Tape 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
9.15 Data cartridge recognition stripe
10 Magnetic recording characteristics
10.1 Test conditions
10.2 Typical Field
10.3 Signal Amplitude
10.4 Resolution
10.5 Narrow-band Signal-to-Noise Ratio
10.6 Ease of erasure
10.7 Tape quality
Section 4 - Requirements for an Interchanged Tape
11 Format of a track pair
11.1 General
11.2 Physical block format
11.3 Search field format
11.4 Servo area
11.5 Track layout
12 Method of recording
12.1 Physical Recording Density
12.2 Bit Shift
12.3 Amplitude of Data Signals
13 Track geometry
13.1 General
13.2 Average track pitch - C
13.3 Track pitch variation
13.4 Track width - B
13.5 Track angle - A
13.6 Track length -E
13.7 Guard band - F
13.8 Azimuth angles
13.9 Track linearity
14 Layout of a tape
14.1 General
14.2 Tape History Log (THL)
14.3 Physical Beginning of Partition
14.4 Logical Beginning of Partition
14.5 Data area
14.6 End of Data
14.7 Physical End of Partition (PEOP)
Annexes
A - Measurement of Light Transmittance of Tape and Leaders
B - Measurement of bit shift
C - Representation of 8-bit bytes by 10-bit patterns
D - Generation of Data Area CRC
E - Generation of ECC
F - Generation of Logical Block CRC
G - Generation of Hamming Code ECC
H - Generation of Search Field CRC
J - Randomization
K - Recommendations for transportation