ASTM D1243-95

Standard Test Method for Dilute Solution Viscosity of Vinyl Chloride Polymers

SCOPE
1.1 This test method covers the determination of the dilute solution viscosity of vinyl chloride polymers in cyclohexanone. The viscosity is expressed in terms of inherent viscosity (logarithmic viscosity number). The test method is limited to those materials that give clear, uniform solutions at the test dilution.
Note 1--Other expressions for viscosity may be used as described in the Appendix, but any change from the test method as specified shall be stated in the report.
1.2 The values stated in SI units are to be regarded as the standard.
1.3 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 2--Although this test method and ISO 1628-2-1998 differ in approach or detail, data obtained by either are technically equivalent.

General Information

• Status: Historical
• Publication Date: 31-Dec-1999
• Technical Committee: D20 - Plastics
• Drafting Committee: D20.15 - Thermoplastic Materials

Relations

• Replaced By: ASTM D1243-95(2000)e1 - Standard Test Method for Dilute Solution Viscosity of Vinyl Chloride Polymers
• Effective Date: 01-Jan-2000
• Referred By: ASTM D4551-22 - Standard Specification for Poly(Vinyl Chloride) (PVC) Plastic Flexible Concealed Water-Containment Membrane
• Effective Date: 01-Jan-2000
• Referred By: ASTM D7176-22 - Standard Specification for Non-Reinforced Polyvinyl Chloride (PVC) Geomembranes Used in Buried Applications
• Effective Date: 01-Jan-2000
• Referred By: ASTM D5225-22 - Standard Test Method for Measuring Solution Viscosity of Polymers with a Differential Viscometer
• Effective Date: 01-Jan-2000
• Referred By: ASTM D2837-22 - Standard Test Method for Obtaining Hydrostatic Design Basis for Thermoplastic Pipe Materials or Pressure Design Basis for Thermoplastic Pipe Products
• Effective Date: 01-Jan-2000
• Referred By: ASTM D2857-22 - Standard Practice for Dilute Solution Viscosity of Polymers
• Effective Date: 01-Jan-2000
• Referred By: ASTM D1755-21 - Standard Specification for Poly(Vinyl Chloride) Resins
• Effective Date: 01-Jan-2000
• Referred By: ASTM F1760-16(2020) - Standard Specification for Coextruded Poly(Vinyl Chloride) (PVC) Non-Pressure Plastic Pipe Having Reprocessed-Recycled Content
• Effective Date: 01-Jan-2000
• Referred By: ASTM D3591-22 - Standard Test Method for Determining Logarithmic Viscosity Number of Poly(Vinyl Chloride) (PVC) in Formulated Compounds
• Effective Date: 01-Jan-2000

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: D 1243 – 95 An American National Standard
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Test Method for
1
Dilute Solution Viscosity of Vinyl Chloride Polymers
This standard is issued under the fixed designation D 1243; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope ISO 1628-2-1988 Determination of Viscosity Number and
Limiting Viscosity Number—Part 2: Poly(Vinyl Chloride)
1.1 This test method covers the determination of the dilute
6
Resins
solution viscosity of vinyl chloride polymers in cyclohex-
2.3 National Institute of Standards and Technology Circu-
anone. The viscosity is expressed in terms of inherent viscosity
7
lar:
(logarithmic viscosity number). The test method is limited to
C-434 Testing of Glass Volumetric Apparatus
those materials that give clear, uniform solutions at the test
dilution.
3. Terminology
NOTE 1—Other expressions for viscosity may be used as described in
3.1 Definitions: Definitions are in accordance with Termi-
the Appendix, but any change from the test method as specified shall be
nology D 883 and Terminology D 1600, unless otherwise
stated in the report.
indicated.
1.2 The values stated in SI units are to be regarded as the
4. Summary of Test Method
standard.
1.3 This standard does not purport to address all of the
4.1 A sample of resin is dissolved in cyclohexanone to make
safety concerns, if any, associated with its use. It is the
a solution of specified concentration. Inherent viscosity (loga-
responsibility of the user of this standard to establish appro-
rithmic viscosity number) is calculated from the measured flow
priate safety and health practices and determine the applica-
times of the solvent and of the polymer solution.
bility of regulatory limitations prior to use.
NOTE 3—For additional information, refer to Test Method D 445 and
3
NOTE 2—Although this test method and ISO 1628-2-1988 differ in Test Method D 2857 for Dilute Solution Viscosity of Polymers.
approach or detail, data obtained by either are technically equivalent.
5. Significance and Use
2. Referenced Documents
5.1 Dilute solution viscosity values for vinyl chloride poly-
2.1 ASTM Standards:
mers are related to the average molecular size of that portion of
D 445 Test Method for Kinematic Viscosity of Transparent
the polymer that dissolves in the solvent.
and Opaque Liquids (and the Calculation of Dynamic
2
6. Apparatus
Viscosity)
2
D 883 Terminology Relating to Plastics
6.1 Transfer Pipets.
D 1600 Terminology for Abbreviated Terms Relating to
6.2 Volumetric Flasks, 100-mL, glass-stoppered, in accor-
3
Plastics
dance with National Institute of Standards and Technology
3
D 1755 Specification for Poly(Vinyl Chloride) Resins
Circular C-434.
D 2857 Test Method for Dilute Solution Viscosity of Poly-
6.3 Viscometer, Ubbelohde Series U-1 or Cannon-
4
mers
Ubbelohde No. 75.
E 77 Method for Verification and Calibration of Liquid-in-
6.4 Water Bath,at306 0.5°C, controlled to within 6
5
Glass Thermometers
0.01°C.
2.2 ISO Standard:
6.5 Timer, as specified in Test Method D 445, graduated in
divisions of 0.1 s or less.
8
6.6 Filter Funnel, fritted-glass.
1
This test method is under the jurisdiction of ASTM Committee D-20 on Plastics
6.7 Thermometer, standard, in accordance with Method
and is the direct responsibility of Subcommittee D20.15 on Thermoplastic Materials
E 77.
(Section D20.15.07).
Current edition approved March 15, 1995. Published May 1995. Originally
e1
published as D 1243 – 52 T. Last previous edition D 1243 –79 (1990) .
This edition contains changes in Sections 1 and 2 to include an ISO equivalency
6
statement. Available from American National Standards Institute, 11 W. 42nd St., 13th
2
Annual Book of ASTM Standards, Vols 05.01 and 10.03. Floor, New York, NY 10036.
3 7
Annual Book of ASTM Standards, Vol 08.01. Available from National Institute of Standards and Technology, U. S. Dept. of
4
Annual Book of ASTM Standards, Vol 08.02. Commerce, Washington, DC 20234.
5 8
Annual Book of ASTM Standards, Vol 14.03. Filters may be obtained from Corning Glass, No. 36060 “Coarse” type.
1

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D 1243
7. Materials
where:
h 5 relative viscosity (viscosity ratio),
7.1 Solvent—Cyclohexanone, analytical reagent grade or rel
t 5 efflux time of the solution,
laboratory-distilled technical grade, boiling between 155 and
t 5 efflux time of the pure solvent,
o
156°C at 760 mm Hg has been found acceptable if stored in a
C 5 weight o
...