2017DIN EN ISO 1660:2017 Geometrical product specifications (GPS) - Geometrical tolerancing - Profile tolerancing (ISO 1660:2017); German version EN ISO 1660:2017
1988DIN ISO 1660:1988 Technical drawings; dimensioning and tolerancing of profiles; identical with ISO 1660:1987
0000 DIN ISO 1660:1986
0000 DIN 7184-1 Bb.3:1974
DIN ISO 1660:1988 Technical drawings; dimensioning and tolerancing of profiles; identical with ISO 1660:1987 was changed to DIN EN ISO 1660:2017 Geometrical product specifications (GPS) - Geometrical tolerancing - Profile tolerancing (ISO 1660:2017); German version EN ISO 1660:2017.