Standard Test Method for Apparent Viscosity of Plastisols and Organosols at Low Shear Rates

SIGNIFICANCE AND USE
4.1 The suitability of a dispersion resin for any given application process is dependent upon its viscosity characteristics.  
4.2 The viscosity defines the flow behavior of a plastisol or organosol under low shear. This viscosity relates to the conditions encountered in pouring, casting, molding, and dipping processes.
SCOPE
1.1 This test method covers the measurement of plastisol and organosol viscosity at low shear rates.  
1.2 Apparent viscosity at high shear rates is covered in Test Method D1823.  
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.  
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 and health practices and determine the applicability of regulatory limitations prior to use.
Note 1: This test method resembles ISO 3219-1977 in title only. The content is significantly different.

General Information

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Publication Date
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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.
Designation:D1824 −16
Standard Test Method for
Apparent Viscosity of Plastisols and Organosols at Low
1
Shear Rates
This standard is issued under the fixed designation D1824; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* 3. Summary of Test Method
1.1 This test method covers the measurement of plastisol
3.1 Thesampleisconditionedtothepropertemperatureand
and organosol viscosity at low shear rates.
its viscosity is determined.
1.2 Apparent viscosity at high shear rates is covered inTest
4. Significance and Use
Method D1823.
4.1 The suitability of a dispersion resin for any given
1.3 The values stated in SI units are to be regarded as the
application process is dependent upon its viscosity character-
standard. The values given in parentheses are for information
istics.
only.
1.4 This standard does not purport to address all of the 4.2 The viscosity defines the flow behavior of a plastisol or
safety concerns, if any, associated with its use. It is the organosol under low shear. This viscosity relates to the
responsibility of the user of this standard to establish appro- conditions encountered in pouring, casting, molding, and
priate safety and health practices and determine the applica- dipping processes.
bility of regulatory limitations prior to use.
5. Apparatus
NOTE 1—This test method resembles ISO 3219-1977 in title only. The
content is significantly different.
5.1 Viscometer, Concentric Cylinder Rotational—The es-
sential instrumentation required providing the minimum rota-
2. Referenced Documents
tional viscometer analytical capabilities include:
2
2.1 ASTM Standards:
5.1.1 A drive motor to apply a unidirectional displacement
D1755Specification for Poly(Vinyl Chloride) Resins to the specimen at a rate from 0.5 to 60 r/min constant to
D1823Test Method forApparentViscosity of Plastisols and
60.5%.
Organosols at High Shear Rates by Extrusion Viscometer
5.1.2 A force sensor to measurement the torque developed
E1Specification for ASTM Liquid-in-Glass Thermometers
by the specimen by the rotational element.
E691Practice for Conducting an Interlaboratory Study to
5.1.3 A coupling shaft, or other means, to transmit the
Determine the Precision of a Test Method
rotational displacement from the motor to the spindle.
2.2 ISO Standard:
NOTE2—Itishelpfultohaveamarkontheshafttoindicateappropriate
ISO 3219-1977:Polymers in the Liquid, Emulsified, or
test fluid level.
Dispersed State—Determination of Viscosity With a Ro-
3 5.1.4 A rotational element, spindle or tool of the right
tational Viscometer Working at a Defined Shear Rate
circular cylindrical shape as shown in Fig. 1,tofixthe
specimen between the drive shaft and a stationary position.
1
ThistestmethodisunderthejurisdictionofASTMCommitteeD20onPlastics
NOTE 3—The rotational element dimensions L and D, are selected so
and is the direct responsibility of Subcommittee D20.15 on Thermoplastic Materi-
that the measured viscosity is between 10 and 90% of the range of that
als.
element.
Current edition approved April 1, 2016. Published April 2016. Originally
approved in 1961. Last previous edition approved in 2010 as D1824-95(2010). 5.1.5 A data collection device, to provide a means of
DOI:10.1520/D1824-16.
acquiring, storing, and displaying measured or calculated
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
signals, or both. The minimum output signals required for
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
rotational viscometry are torque, rotational speed, temperature
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
and time.
3
Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
4th Floor, New York, NY 10036, http://www.ansi.org. NOTE 4—Manual observation and recording of data are acceptable.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D1824−16
6. Conditioning
6.1 Maintaintheplastisolororganosolsamplesat23 61°C
(73 6 2°F) and 50 6 10% relative humidity at all times after
mixing and throughout the period of viscosity determinations.
7. Procedure
7.1 Select a spindle that will read in the middle or upp
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D1824 − 95 (Reapproved 2010) D1824 − 16
Standard Test Method for
Apparent Viscosity of Plastisols and Organosols at Low
1
Shear Rates
This standard is issued under the fixed designation D1824; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope Scope*
1.1 This test method covers the measurement of plastisol and organosol viscosity at low shear rates.
1.2 Apparent viscosity at high shear rates is covered in Test Method D1823.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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 and health practices and determine the applicability of regulatory
limitations prior to use.
NOTE 1—This test method resembles ISO 3219-1977 in title only. The content is significantly different.
2. Referenced Documents
2
2.1 ASTM Standards:
D1755 Specification for Poly(Vinyl Chloride) Resins
D1823 Test Method for Apparent Viscosity of Plastisols and Organosols at High Shear Rates by Extrusion Viscometer
E1 Specification for ASTM Liquid-in-Glass Thermometers
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
2.2 ISO Standard:
ISO 3219-1977: Polymers in the Liquid, Emulsified, or Dispersed State—Determination of Viscosity With a Rotational
3
Viscometer Working at a Defined Shear Rate
3. Summary of Test Method
3.1 The sample is conditioned to the proper temperature and its viscosity is determined.
4. Significance and Use
4.1 The suitability of a dispersion resin for any given application process is dependent upon its viscosity characteristics.
4.2 The viscosity defines the flow behavior of a plastisol or organosol under low shear. This viscosity relates to the conditions
encountered in pouring, casting, molding, and dipping processes.
5. Apparatus
5.1 Viscometer.Viscometer, Concentric Cylinder Rotational—The essential instrumentation required providing the minimum
rotational viscometer analytical capabilities include:
5.1.1 A drive motor to apply a unidirectional displacement to the specimen at a rate from 0.5 to 60 r/min constant to 60.5 %.
5.1.2 A force sensor to measurement the torque developed by the specimen by the rotational element.
5.1.3 A coupling shaft, or other means, to transmit the rotational displacement from the motor to the spindle.
1
This test method is under the jurisdiction of ASTM Committee D20 on Plastics and is the direct responsibility of Subcommittee D20.15 on Thermoplastic Materials.
Current edition approved Dec. 15, 2010April 1, 2016. Published March 2011April 2016. Originally approved in 1961. Last previous edition approved in 20022010 as
D1824 - 95(2002). DOI:10.1520/D1824-95R10.(2010). DOI:10.1520/D1824-16.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D1824 − 16
NOTE 2—It is helpful to have a mark on the shaft to indicate appropriate test fluid level.
5.1.4 A rotational element, spindle or tool of the right circular cylindrical shape as shown in Fig. 1, to fix the specimen between
the drive shaft and a stationary position.
NOTE 3—The rotational element dimensions L and D, are selected so that the measured viscosity is between 10 and 90 % of the range of that element.
5.1.5 A data collection device, to provide a means of acquiring, storing, and displaying measured or calculated signals, or both.
The minimum output signals required for rotational viscometry are torque, rotational speed, temperature and time.
NOTE 4—Manual observation and recording of data are acc
...

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: D1824 − 16
Standard Test Method for
Apparent Viscosity of Plastisols and Organosols at Low
1
Shear Rates
This standard is issued under the fixed designation D1824; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* 3. Summary of Test Method
1.1 This test method covers the measurement of plastisol
3.1 The sample is conditioned to the proper temperature and
and organosol viscosity at low shear rates.
its viscosity is determined.
1.2 Apparent viscosity at high shear rates is covered in Test
4. Significance and Use
Method D1823.
4.1 The suitability of a dispersion resin for any given
1.3 The values stated in SI units are to be regarded as the
application process is dependent upon its viscosity character-
standard. The values given in parentheses are for information
istics.
only.
1.4 This standard does not purport to address all of the 4.2 The viscosity defines the flow behavior of a plastisol or
safety concerns, if any, associated with its use. It is the organosol under low shear. This viscosity relates to the
responsibility of the user of this standard to establish appro- conditions encountered in pouring, casting, molding, and
priate safety and health practices and determine the applica- dipping processes.
bility of regulatory limitations prior to use.
5. Apparatus
NOTE 1—This test method resembles ISO 3219-1977 in title only. The
content is significantly different.
5.1 Viscometer, Concentric Cylinder Rotational—The es-
sential instrumentation required providing the minimum rota-
2. Referenced Documents
tional viscometer analytical capabilities include:
2
2.1 ASTM Standards: 5.1.1 A drive motor to apply a unidirectional displacement
D1755 Specification for Poly(Vinyl Chloride) Resins
to the specimen at a rate from 0.5 to 60 r/min constant to
D1823 Test Method for Apparent Viscosity of Plastisols and 60.5 %.
Organosols at High Shear Rates by Extrusion Viscometer
5.1.2 A force sensor to measurement the torque developed
E1 Specification for ASTM Liquid-in-Glass Thermometers
by the specimen by the rotational element.
E691 Practice for Conducting an Interlaboratory Study to
5.1.3 A coupling shaft, or other means, to transmit the
Determine the Precision of a Test Method
rotational displacement from the motor to the spindle.
2.2 ISO Standard:
NOTE 2—It is helpful to have a mark on the shaft to indicate appropriate
ISO 3219-1977: Polymers in the Liquid, Emulsified, or
test fluid level.
Dispersed State—Determination of Viscosity With a Ro-
3 5.1.4 A rotational element, spindle or tool of the right
tational Viscometer Working at a Defined Shear Rate
circular cylindrical shape as shown in Fig. 1, to fix the
specimen between the drive shaft and a stationary position.
1
This test method is under the jurisdiction of ASTM Committee D20 on Plastics
NOTE 3—The rotational element dimensions L and D, are selected so
and is the direct responsibility of Subcommittee D20.15 on Thermoplastic Materi-
that the measured viscosity is between 10 and 90 % of the range of that
als.
element.
Current edition approved April 1, 2016. Published April 2016. Originally
5.1.5 A data collection device, to provide a means of
approved in 1961. Last previous edition approved in 2010 as D1824 - 95(2010).
DOI:10.1520/D1824-16.
acquiring, storing, and displaying measured or calculated
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
signals, or both. The minimum output signals required for
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
rotational viscometry are torque, rotational speed, temperature
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. and time.
3
Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
4th Floor, New York, NY 10036, http://www.ansi.org. NOTE 4—Manual observation and recording of data are acceptable.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D1824 − 16
6. Conditioning
6.1 Maintain the plastisol or organosol samples at 23 6 1°C
(73 6 2°F) and 50 6 10 % relative humidity at all times after
mixing and throughout the period of viscosity determinations.
7. Procedure
7.1 Select a spindle that will read in the middle or upper
portion of the viscometer indication at the highest rotational
speed to be use
...

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