ASTM D1725-62(1996)e1

Standard Test Method for Viscosity of Resin Solutions

SCOPE
1.1 This test method covers the measurement of the viscosity of resin solutions.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.  
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.

General Information

• Status: Historical
• Publication Date: 31-Dec-1995
• ICS: 87.060.20 - Binders
• Technical Committee: D01 - Paint and Related Coatings, Materials, and Applications
• Drafting Committee: D01.33 - Polymers and Resins

Relations

• Replaced By: ASTM D1725-04 - Standard Test Method for Viscosity of Resin Solutions
• Effective Date: 01-Mar-2004
• Referred By: ASTM D5165-12(2020) - Standard Practice for Laboratory Preparation of Gelled Vehicles Using a Resin Kettle
• Effective Date: 01-Jan-1996
• Referred By: ASTM D5062-09(2020) - Standard Test Method for Resin Solution Dilutability by Volumetric/Gravimetric Determination
• Effective Date: 01-Jan-1996
• Referred By: ASTM D5958-99(2020) - Standard Practices for Preparation of Oil-Based Ink Resin Solutions
• Effective Date: 01-Jan-1996

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
e1
Designation: D 1725 – 62 (Reapproved 1996)
Standard Test Method for
Viscosity of Resin Solutions
This standard is issued under the fixed designation D 1725; 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.
e NOTE—Editorial changes were made throughout in November 1996.
1. Scope 4.4 Corks, No. 2 short taper, to fit viscosity tubes.
4.5 Holder for Viscosity Tubes, preferably a mechanical
1.1 This test method covers the measurement of the viscos-
holder with rack and pinion for inverting the tubes. The holder
ity of resin solutions.
should be checked with a small level and T-square to make
1.2 The values stated in inch-pound units are to be regarded
certain it holds the tubes in an exact vertical position after
as the standard. The values given in parentheses are for
being placed in the constant-temperature bath.
information only.
4.6 Bottle Shaker, preferably one which will give end-over-
1.3 This standard does not purport to address all of the
end agitation.
safety concerns, if any, associated with its use. It is the
4.7 Timing Device, such as a stopwatch or electric stop
responsibility of the user of this standard to establish appro-
clock capable of being read to a precision of 0.1 s.
priate safety and health practices and determine the applica-
4.8 Viscosity Tubes, of clear glass and flat bottoms, having
bility of regulatory limitations prior to use.
10.65 6 0.025-mm inside diameter and 114 6 1-mm outside
2. Referenced Documents
length. Plainly legible lines shall be located on the tubes as
follows:
2.1 ASTM Standards:
27 6 0.5 mm
D 154 Guide for Testing Varnishes
100 6 0.5 mm
D 1545 Test Method for Viscosity of Transparent Liquids
108 6 0.5 mm
by Bubble Time Method
All distances shall be measured from the bottom outside of
3. Summary of Test Method the tube. The distance between the first and second lines shall
be 73 6 0.5 mm.
3.1 Solid resins are dissolved in organic solvents by cold-
cut or hot-cut methods in the laboratory. The viscosity of such
5. Solvent
prepared solutions, or of commercial solutions of resins is then
5.1 The solvent used should be mutually agreed upon
determined by the bubble time method (Test Method D 1545).
between the purchaser and the manufacturer. Toluene, xylene,
The bubble seconds are approximately equal to stokes.
mineral spirits, alcohols, etc., are used for the preparation of
4. Apparatus
solutions of resins. For a given resin, the viscosity obtained
will depend on the solvent used. In case of dispute, both
4.1 Bath, constant-temperature, consisting of a cylindrical
laboratories should use portions of the same batch of solvent.
glass jar of about 5-gal capacity, or an aquarium tank with
controls capable of maintaining the temperature at 25 6 0.1°C
6. Preparation of Resin Solutions
with water as the bath medium.
6.1 The procedure employed for dissolving solid resins will
4.2 Bottles, 8-oz (225-mL), wide-mouth, screw cap.
be dependent upon the chemical nature of the resin under test.
4.3 Cellophane, sheet, cut into 4 or 5-in. (102 or 127- mm)
Some resins will dissolve readily in cold solvent with moderate
squares.
agitation, while others must be hot-cut in order to effect
solution. The method of solution shall be agreed upon mutually
This test method is under the jurisdiction of ASTM Committee D-1 on Paint between the purchaser and the seller since there may be
and Related Coatings, Materials, and Applications and is the direct responsibility of
differences in solubility or viscosity between solutions pre-
Subcommittee D01.33 on Polymers and Resins.
pared with and without heat. The solvent concentration may
Current edition accepted Sept. 28, 1962. Originally issued 1960. Replaces
vary from 30 to 90 % and is generally selected to give a
D1725–60T.
Annual Book of ASTM Standards, Vol 06.03.
solution having a viscosity between 5 and 300 s. With hard
A suitable mechanical holder is available from the Gardner Laboratory, Inc.,
5521 Landy Lane, Washington, DC, Item 660.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
D 1725
resin use only material taken from freshly broken lumps. Do 6.4 Resins Supplied in Solution—These resins ordinarily
not use crushed or powdered material from
...