DIN Standards Committee Paper, board and pulp
ISO 217
Paper - Untrimmed sizes - Designation and tolerances for primary and supplementary ranges, and indication of machine direction
Papier - Rohformate - Kennzeichnung und Toleranzen für die Grund- und Ergänzungsreihen, Angabe der Maschinenlaufrichtung
Responsible national committee
NA 074-01-12 AA - Paper and paper products for electronic data processes, office and school