Standard Test Method for Viscosity Measurement Validation of Rotational Viscometers

SIGNIFICANCE AND USE
5.1 This test method may be used to validate the performance of a specific rotational viscometer apparatus.  
5.2 This test method may be used to validate the performance of a specific method based upon the measurement of viscosity using rotational viscometer apparatus.  
5.3 This test method may be used to determine the repeatability of a specific apparatus, operator, or laboratory.  
5.4 This test method may be used for specification or regulatory compliance purposes.
SCOPE
1.1 This test method provides procedures for validating viscosity measurements by rotational viscometers of Newtonian fluids. Performance parameters determined include viscosity repeatability (precision), detection limit, quantitation limit, linearity, and bias.  
1.2 Validation of apparatus performance and analytical methods is requested or required for quality initiatives or where results may be used for legal purposes.  
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

Status
Historical
Publication Date
31-Dec-2017
Technical Committee
Drafting Committee
Current Stage
Ref Project

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ASTM E3116-18 - Standard Test Method for Viscosity Measurement Validation of Rotational Viscometers
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: E3116 − 18
Standard Test Method for
Viscosity Measurement Validation of Rotational
1
Viscometers
This standard is issued under the fixed designation E3116; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope E2161 Terminology Relating to Performance Validation in
Thermal Analysis and Rheology
1.1 This test method provides procedures for validating
E2975 Test Method for Calibration or Calibration Verifica-
viscosity measurements by rotational viscometers of Newto-
tion of Concentric Cylinder Rotational Viscometers
nian fluids. Performance parameters determined include vis-
cosity repeatability (precision), detection limit, quantitation
3. Terminology
limit, linearity, and bias.
3.1 Definitions:
1.2 Validation of apparatus performance and analytical
3.1.1 Technical terms used in this standard are defined in
methods is requested or required for quality initiatives or where
Practice E177 and in Terminologies E473, E1142, and E2161
results may be used for legal purposes.
including analyte, calibration, Celsius, detection limit,
1.3 The values stated in SI units are to be regarded as
linearity, Newtonian, non-Newtonian, precision, quantitation
standard. No other units of measurement are included in this
limit, reference materials, relative standard deviation,
standard.
repeatability, shear, slope, standard deviation, validation,
1.4 This standard does not purport to address all of the
viscometer, and viscosity.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
4. Summary of Test Method
priate safety, health, and environmental practices and deter-
4.1 Viscosity is the primary dependent parameter and either
mine the applicability of regulatory limitations prior to use.
torque or rotational speed is the primary independent parameter
1.5 This international standard was developed in accor-
measured by rotational viscometry. Viscosity is strongly de-
dance with internationally recognized principles on standard-
pendent upon temperature and so temperature is usually held
ization established in the Decision on Principles for the
constant.
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
4.2 Viscosity is validated by the direct measurement using a
Barriers to Trade (TBT) Committee.
concentric cylinder rotational viscometer at an isothermal
temperature using reference materials of known viscosity as an
2. Referenced Documents
analyte.
2
2.1 ASTM Standards:
4.3 Alternatively, validation of a rotational viscometry
E177 Practice for Use of the Terms Precision and Bias in
method based upon viscosity measurement may be performed
ASTM Test Methods
using a specific test specimen as the analyte.
E473 Terminology Relating to Thermal Analysis and Rhe-
4.4 The viscosity of three or more specimens, nominally
ology
E1142 Terminology Relating to Thermophysical Properties representing the minimum, midpoint and maximum of the
range of the test method, are measured at least in triplicate.
E1970 Practice for Statistical Treatment of Thermoanalytical
Data
NOTE 1—Repeatability is determined by performing a sufficient number
of determinations to calculate statistically valid estimates of the standard
1
deviation or relative standard deviation of the measurements.
This test method is under the jurisdiction of ASTM Committee E37 on Thermal
Measurements and is the direct responsibility of Subcommittee E37.08 on Rheol-
4.4.1 Viscosity linearity and bias are determined from the
ogy.
linear regression (best-fit) straight-line correlation of the results
Current edition approved Jan. 1, 2018. Published January 2018. DOI: 10.1520/
E3116-18. from measurements of the three or more specimens.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
4.4.2 Viscosity repeatability, detection limits and quantita-
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
tion limits are determined from the standard deviation of the
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. measurement of three or more analyte-containing specimens.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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E3116 − 18
4.5 A spindle is rotated in a Newtonian fluid at a known (or 7.1.3 A cylindrical rotational element, spindle, geometry, or
measured) speed. The viscosity drag experienced by the tool, composed o
...

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