2016DIN EN ISO 16610-22:2016-04 Geometrical product specifications (GPS) - Filtration - Part 22: Linear profile filters: Spline filters (ISO 16610-22:2015); German version EN ISO 16610-22:2015
2016DIN EN ISO 16610-22:2016 Geometrical product specifications (GPS) - Filtration - Part 22: Linear profile filters: Spline filters (ISO 16610-22:2015)