1ASTM D4624 -93 (1998) Standard Test Method for Measuring Apparent viscosity by Capillary Viscometer at High Temperature and High -shear Rates
2ASTM D4683 - 96 Standard Test Method for Measuring Viscsity at High - shear Rates and High Temperature by Tapered Bearing Simulator
3ASTM D5481 -96 (2001) Standard Test Method for Measuring Apparent Viscosity at Hihg - Temperature and High shear Rate by Multillary Capillary Viscometer