ASTM D4741-21 引用标准 ASTM D4683 ASTM D5481 ASTM D6300 ASTM D6708 购买 正式版 1.1?本测试方法2涵盖使用高剪切速率锥形塞粘度计在150℃和1×106s–1以及100℃和1×106s–1下实验室测定油的粘度型号 BE/C 或 BS/C。 1.2、牛顿校准油用于调整工作间隙aASTM...
(1.4 × 10 6 s −1 ). 3 This shear rate has been found to decrease thediscrepancy between this test method and other high-temperature high-shear test methods 3 (Test Methods D4683and D4741) used for engine oil specif i cations. Viscosities aredetermined directly from calibrations that ...