The standard applies to microfilm readers for - 16 mm microfilms on rolls, in cassettes, in jackets and in window punched cards;
——35 mm microfilms in rolls, strips, jackets and window punch cards;
——105 mm microfilms in rolls, strips and fiche formats;
——as well as for copies of all microfilms mentioned. The standard is intended to provide guidance in the manufacture, purchase, operation and maintenance of microfilm reading devices.