BS ISO/IEC 11319:1993

Section 1 : General
1. Scope
2. Conformances
3. Normative references
4. Definitions
4.1 AC erase
4.2 Average Signal Amplitude
4.3 azimuth
4.4 back surface
4.5 bit cell
4.6 byte
4.7 cartridge
4.8 Cyclic Redundancy Check (CRC) Character
4.9 Error Correcting Code (ECC)
4.10 flux transition position
4.11 flux transition spacing
4.12 magnetic tape
4.13 Master Standard Reference Tape
4.14 Physical Beginning of Tape (PBOT)
4.15 Physical End of Tape (PEOT)
4.16 physical recording density
4.17 Secondary Reference Amplitude
4.18 Secondary Reference Field
4.19 Secondary Standard Reference Tape
4.20 Standard Reference Current (Ir)
4.21 Tape Reference Edge
4.22 Test Recording Current
4.23 tone
4.24 track
4.25 Typical Field
5. Environment and safety
5.1 Testing environment
5.2 Operating environment
5.3 Storage environment
5.4 Transportation
5.5 Safety
5.6 Flammability
Section 2 : Requirements for the case
6.1 Dimensional and mechanical characteristics of
        the case
6.1 General
6.2 Overall dimension (figure 3)
6.3 Holding areas
6.4 Cartridge insertion
6.5 Window (figure 1)
6.6 Loading grips (figure 3)
6.7 Label areas (figure 3)
6.8 Datum areas and datum holes (figures 4, 5 and 6)
6.9 Support areas
6.10 Recognition holes (figures 5, 6 and 7)
6.11 Write-inhibit Hole (figures 6 and 7)
6.12 Pre-positioning surfaces (figures 3 and 5)
6.13 Cartridge lid (figures 3 and 8)
6.14 Cartridge reel lock (figure 11)
6.15 Reel access holes (figure 5)
6.16 Interface between the reels and the drive spindles
        (figures 17 and 18)
6.17 Light path (figures 5, 7, 15 and 16)
6.18 Position of the tape in the case (figure 16)
6.19 Tape path zone (figures 16 and 17)
6.20 Tape access cavity (figure 5)
6.21 Tape access cavity clearance requirements
        (figure 19)
Section 3 : Requirements for the unrecorded tape
7. Mechanical, physical and dimensional
        characteristics of the tape
7.1 Materials
7.2 Tape length
7.2.1 Length of magnetic tape
7.2.2 Length of leader and trailer tapes
7.2.3 Splicing tape
7.3 Width
7.4 Discontinuities
7.5 Thickness
7.5.1 Thickness of magnetic tape
7.5.2 Thickness of leader and trailer tape
7.6 Longitudinal curvature
7.7 Cupping
7.8 Coating adhesion (figure 20)
7.9 Layer-to-layer adhesion
7.10 Tensile strength
7.10.1 Breaking strength
7.10.2 Yield strength
7.11 Residual elongation
7.12 Electrical resistance of the surface
7.13 Tape winding
7.14 Light transmittance of tape
8. Magnetic recording performance
8.1 Test conditions
8.2 Typical Field
8.3 Signal Amplitude
8.4 Resolution
8.5 Narrow-band signal-to-noise ratio
8.5.1 Requirement
8.5.2 Procedure
8.6 Ease of erasure
8.7 Tape quality
8.7.1 Missing pulses
8.7.2 Missing pulse zone
8.8 Inhibitor tape
Section 4 : Requirements for an interchanged tape
9. Format
9.1 General
9.2 Information matrix
9.2.1 Loading of the information matrix
10. Method of recording
10.1 Physical recording density
10.1.1 Long-term average bit cell length
10.1.2 Short-term average bit cell length
10.1.3 Rate of change
10.2 Bit shift
10.3 Read signal amplitudes
10.3.1 Amplitude of data signals
10.3.2 Amplitude of servo signals
10.3.3 Signal amplitude on an analogue tape mark track
10.4 Erasure
11. Track geometry
11.1 Track positions
11.2 Track pitch
11.2.1 Average track pitch
11.2.2 Adjacent track pitch
11.3 Track width
11.4 Track angle
11.5 Linearity of track edges
11.6 Azimuth
12. Format of an information track
12.1 Channel bit
12.2 Information Segment
12.2.1 Bit Synchronization field
12.2.2 Information Segment Number
12.2.3 Information Segment field
12.3 Information Block
12.4 Information Zone
12.5 Servo Zone
12.6 Information Tracks
12.6.1 Format ID Track
12.6.2 Data Track
12.6.3 Tape Mark Track
12.6.4 Splice Track
13. Tape Mark
13.1 Description
13.2 Long Tape Mark
13.3 Short Tape Mark
13.3.1 Normal Short Tape Mark
13.3.2 Alternative Short Tape Mark
14. ID Information
14.1 Column 00, Row 00
14.1.1 Block Type - Data Block
14.1.2 Block Type - Data Block
14.1.3 Block Type - Format ID
14.1.4 Block type - Pad Block
14.2 Column 00, Row 01
14.3 Column 00, Row 02
14.4 Column 00, Row 03
14.5 Column 00, Row 04
14.6 Column 00, Row 05, 06
14.6.1 Row 05
14.6.2 Row 06
14.7 Colum 00, Row 07
14.8 Column 00, Rows 08, 09, 10
14.8.1 Block type - Data Block
14.8.2 Block type - non-Data Block
14.9 Column 00, Rows 11, 12, 13
15. Rewritten Information Blocks
16. Physical tape format
16.1 Initial Erased Area
16.2 Logical Beginning of Tape Area (LBOT Area)
16.3 Usable area of the tape
16.4 Post Data erased area
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. Recommendations for transportation
E. Inhibitor tape

Specifies the physical and magnetic characteristics of an 8 mm wide magnetic tape cartridge to enable interchangeability of such cartridges. Coverage includes: requirements for the case; requirements for the unrecorded tape; requirements for an interchanged tape. Also gives definitions and annexes.

This International Standard specifies the physical and magnetic characteristics of an 8 mm wide magnetic tape cartridge to enable interchangeability of such cartridges. It also provides a format and recording method, thus allowing, together with ISO 1001 for Magnetic Tape Labelling, full data interchange by means of such magnetic tape cartridges.