INCITS/ISO/IEC 11557 : 1992 : R1999

Section 1 - General
1 Scope
2 Normative references
3 Conformance
4 Definitions
5 Environment and safety
Section 2 - Requirements for the case
6 Dimensional and mechanical characteristics
   of the case
Section 3 - Requirements for the unrecorded tape
7 Mechanical, physical and dimensional characteristics
   of the tape
8 Magnetic recording characteristics
Section 4 - Requirements for an interchanged tape
9 Format
10 Method of recording
11 Track geometry
12 Recording of blocks on the tape
13 Format of a track
14 Layout of a Single Data Space tape
15 Layout of Partitioned tape
16 Housekeeping frames
Annexes
A - Measurement of the light transmittance of the prisms
B - Recognition holes
C - Means to open lid
D - Measurement of light transmittance of tape and leaders
E - Measurement of Signal to Noise Radio
F - Method for determining the Nominal and Maximum Allowable
    Recorded Levels
G - Representation of 8-Bit bytes by 10-bit patterns
H - Measurement of bit shift
J - Recommendations for transportation
K - Method of measuring track edge linearity
L - Read-After-Write
M - Example of the content of a Basic Group No. 0
N - Registration of algorithms

Describes the physical and magnetic characteristics of a 3,81 mm-wide magnetic tape cartridge to enable interchangeability of such cartridges. It also specifies the quality of the recorded signal, the recording method and the recorded format, thereby allowing data interchange between drives by means of such magnetic tape cartridges.