Prezentul standard stabile?te toleran?ele de execu?ie ?i limitele de uzur? ale p?r?i-
lor active ale calibrelor tampon cilindrice ?i sferice, utilizate la verificarea dimensiunilor alezajelor p?n? la 500 mm, av?nd abateri limit? conform STAS 8103-68.
STAS 8221-1968 history
1970STAS 8221-1968 ISO system tolerance and calibration system. Inner diameter gauge. Manufacturing Tolerances and Wear Ranges