Standar ASTM Amerika (Nilai umum) ASTM-a228 ASTM-a229 ASTM-A401A401 ASTM-A877-A877M-10 standar EN Eropa EN_10270_1 EN-10270-2 EN_10270_3 Standar GB Cina Kawat pegas temper minyak GBT 18983-2017
