ASTM D4486-91(2010)

Standard Test Method for Kinematic Viscosity of Volatile and Reactive Liquids

SIGNIFICANCE AND USE
Kinematic viscosity is a physical property which is of importance in the design of systems in which flowing liquids are used or handled.
SCOPE
1.1 This test method covers the measurement of kinematic viscosity of transparent, Newtonian liquids which because of their reactivity, instability, or volatility cannot be used in conventional capillary kinematic viscometers. This test method is applicable up to 2 × 10−5  N/m2  (2 atm) pressure and temperature range from −53 to +135 °C (−65 to +275 °F).
1.1.1 For the measurement of the kinematic viscosity of other liquids, see Test Method D445.
1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific warning statements, see 7.2, 7.3, 7.4, and Annex A1.

General Information

• Status: Historical
• Publication Date: 31-Jul-2010
• ICS: 17.060 - Measurement of volume, mass, density, viscosity
• Technical Committee: D02 - Petroleum Products, Liquid Fuels, and Lubricants
• Drafting Committee: D02.L0.07 - Engineering Sciences of High Performance Fluids and Solids (Formally D02.1100)

Relations

• Replaces: ASTM D4486-91(2006) - Standard Test Method for Kinematic Viscosity of Volatile and Reactive Liquids
• Effective Date: 01-Aug-2010
• Replaced By: ASTM D4486-10 - Standard Test Method for Kinematic Viscosity of Volatile and Reactive Liquids
• Effective Date: 01-Nov-2010
• Referred By: ASTM D6685-01(2015) - Standard Guide for the Selection of Test Methods for Fabrics Used for Fabric Formed Concrete (FFC)
• Effective Date: 01-Aug-2010

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:D4486–91 (Reapproved 2010)
Standard Test Method for
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Kinematic Viscosity of Volatile and Reactive Liquids
This standard is issued under the fixed designation D4486; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 3.1.2.1 Discussion—For gravity flow under a given hydro-
static head, the pressure head of a liquid is proportional to its
1.1 This test method covers the measurement of kinematic
density r. For any particular viscometer, the time of flow of a
viscosity of transparent, Newtonian liquids which because of
fixedvolumeofliquidisdirectlyproportionalto h/r.Thisratio
their reactivity, instability, or volatility cannot be used in
is the kinematic viscosity coefficient (n). The cgs unit of
conventionalcapillarykinematicviscometers.Thistestmethod
−5 2
kinematic viscosity is the stoke and has the dimensions of
is applicable up to 2 310 N/m (2 atm) pressure and
centimetre squared per second: the centistoke (0.01 St) is
temperature range from −53 to +135 °C (−65 to +275 °F).
frequently used. The SI unit of kinematic viscosity has the
1.1.1 For the measurement of the kinematic viscosity of
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dimensions of metre /second, and is equivalent to 10 St.
other liquids, see Test Method D445.
3.1.3 viscosity—the ratio between the applied shear stress
1.2 This standard does not purport to address all of the
and rate of shear.
safety concerns, if any, associated with its use. It is the
3.1.3.1 Discussion—This ratio is called the coefficient of
responsibility of the user of this standard to establish appro-
viscosity. The coefficient of viscosity (h) is thus a measure of
priate safety and health practices and determine the applica-
theresistancetoflowoftheliquid.Thisiscommonlycalledthe
bility of regulatory limitations prior to use. For specific
viscosity of the liquid.The cgs unit of viscosity is the poise. P,
warning statements, see 7.2, 7.3, 7.4, and Annex A1.
which has the dimensions of dyne-seconds per square centi-
2. Referenced Documents
metre: the centipoise (0.01 poise) is frequently used. The SI
2
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unit of viscosity has the dimensions of newton second/metre ,
2.1 ASTM Standards:
and is equivalent to 10 P.
D445 Test Method for Kinematic Viscosity of Transparent
3.1.4 vulnerable liquid—a liquid which by reason of its
and Opaque Liquids (and Calculation of Dynamic Viscos-
volatility, instability or reactivity in the presence of air or any
ity)
other specific gaseous medium may undergo physical or
D2162 PracticeforBasicCalibrationofMasterViscometers
chemical changes that may affect its viscosity.
and Viscosity Oil Standards
E1 Specification for ASTM Liquid-in-Glass Thermometers
4. Summary of Test Method
3. Terminology 4.1 The time is measured, in seconds, for a fixed volume of
liquid to flow under gravity through the capillary of the
3.1 Definitions of Terms Specific to This Standard:
viscometer under a reproducible driving head and at a closely
3.1.1 density—the mass per unit volume of the liquid.
controlled temperature. The kinematic viscosity is calculated
3.1.1.1 Discussion—The cgs unit of density (r) has the
fromthemeasuredflowtimeandthecalibrationconstantofthe
dimensions of grams per cubic centimetre. The SI unit of
viscometer.
density has the dimensions of kilograms per cubic metre.
3.1.2 kinematic viscosity—The ratio of the viscosity to the
5. Significance and Use
density of the liquid.
5.1 Kinematic viscosity is a physical property which is of
importance in the design of systems in which flowing liquids
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This test method is under the jurisdiction of Committee D02 on Petroleum
are used or handled.
ProductsandLubricantsandisthedirectresponsibilityofSubcommitteeD02.11on
Engineering Sciences of High Performance Fluids and Solids.
6. Apparatus
Current edition approved Aug. 1, 2010. Published October 2010. Originally
6.1 Viscometer Thermostat—Any transparent liquid or va-
approved in 1991. Last previous edition approved in 2006 as D4486–91(2006).
DOI: 10.1520/D4486-91R10.
por bath of sufficient depth such that at no time during the
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
measurement will any portion of the sample in the viscometer
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
be less than 20 mm below the surface of the bath liquid or less
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. than 20 mm above the bottom of the bath may be used. The
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