ASTM D5478-98
Historical Standard: ASTM D5478-98 Standard Test Methods for Viscosity of Materials by a Falling Needle Viscometer
SUPERSEDED (see Active link, below)
ASTM D5478
1. Scope
1.1 These test methods cover the measurement of the viscosity of Newtonian and non-Newtonian liquids. These test methods are applicable to liquids having viscosities in the range from 5 X 10 -4 to 10 Pa[dot]s (0.5 to 10 cP). The shear rate range is dependent upon the needle used and viscosity of the liquid and may vary from 10 -4 to 10 s -1 .
1.2 The yield stress of liquids having this property may also be determined.
1.3 These test methods consist of determining liquid viscosities of Newtonian and non-Newtonian fluids (clear or opaque) by measuring the steady-state (constant) or terminal velocities of cylindrical needles as they fall through the test liquid under the influence of gravity. Yield stresses of non-Newtonian liquids may be measured using the same procedure.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
E1 Specification for ASTM Liquid-in-Glass Thermometers
E2251 Specification for Liquid-in-Glass ASTM Thermometers with Low-Hazard Precision Liquids
Keywords
falling needle viscometer; Newtonian fluid; non-Newtonian fluid; rheological property; rheometer; viscometer; viscosity; yield stress;
ICS Code
ICS Number Code 17.060 (Measurement of volume, mass, density, viscosity)
DOI: 10.1520/D5478-98
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