Holes
Cassettes (magnetic tapes)
Dimensional measurement
Signal level
Data processing
Lids
Data recording
Electrical resistance
Data media
Data layout
Data compression
Interchangeability
Environment (working)
Dimensions
Coatings
Magnetic tape equipment
Conformity
Electrical wave measurement
Elongation
Data blocks
Magnetic recording
Transportation
Tensile strength
Information exchange
Testing conditions
Magnetic tapes
Signal-to-noise ratio
Transmittance
Adhesion tests
Optical measurement
Recording tracks
Yield strength
Recording characteristics