DIN 3966-1:1978-08

0 Other relevant Standards
1 Dimensions and symbols in the drawing
      1.1 Tip diameter da
      1.2 Root diameter df (if required)
      1.3 Facewidth b
      1.4 Symbols of the reference elements
      1.5 Concentricity and camming tolerance as well
             as parallelism of faces of the gear body
      1.6 Symbols of surfaces for the tooth flanks to
             DIN ISO 1302 or DIN 3141
      1.7 Denoting the working flanks (if required)
2 Data in separate table
      2.1 Nominal dimensions of gear teeth
      2.2 Gear tooth tolerances and their test dimensions
      2.3 Gear pairing
3 Data on preparatory treatment
4 Examples for tables according to Section 2
      4.1 Table for an external straight cylindrical gear
      4.2 Table for an external helical cylindrical gear
      4.3 Table for an internal straight cylindrical gear
      4.4 Abridged table for an external cylindrical gear
      4.5 Abridged table for an external cylindrical gear