2003LST EN ISO 2538:2003 Geometrical product specfications (GPS) - Series of angles and slopes on prisms (ISO 2538:1998)
LST EN ISO 2538:2003 Geometrical product specfications (GPS) - Series of angles and slopes on prisms (ISO 2538:1998) was changed to ISO 24496:2017 Office furniture - Office chairs - Methods for the determination of dimensions.