ASTM D1725-12

Standard Practice for Preparing Resin Solutions for Viscosity Measurement by Bubble Time Method

ABSTRACT
This test method details the standard procedure for measuring the viscosity of resin solutions. The apparatuses required here are constant-temperature water bath, wide-mouthed screw capped bottles, cellophane sheets, No. 2 short taper corks, viscosity tube holder, bottle shaker, timing device, and viscosity tubes. Solid resins are dissolved in organic solvents by cold-cut or hot-cut methods in the laboratory. The viscosity of such prepared solutions, or of commercial solutions of resins is then determined by the bubble time method. The bubble seconds are approximately equal to stokes.
SCOPE
1.1 This practice provides instructions for preparing resin solutions viscosity measurement by bubble time method.
1.2 The values stated in SI 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. For specific hazard statements, see Section 7.

General Information

• Status: Historical
• Publication Date: 14-Jul-2012
• ICS: 87.060.20 - Binders
• Technical Committee: D01 - Paint and Related Coatings, Materials, and Applications
• Drafting Committee: D01.33 - Polymers and Resins

Relations

• Replaces: ASTM D1725-04 - Standard Test Method for Viscosity of Resin Solutions
• Effective Date: 15-Jul-2012
• Replaced By: ASTM D1725-12(2019) - Standard Practice for Preparing Resin Solutions for Viscosity Measurement by Bubble Time Method
• Effective Date: 01-Jun-2019
• Referred By: ASTM D5165-12(2020) - Standard Practice for Laboratory Preparation of Gelled Vehicles Using a Resin Kettle
• Effective Date: 15-Jul-2012
• Referred By: ASTM D5958-99(2020) - Standard Practices for Preparation of Oil-Based Ink Resin Solutions
• Effective Date: 15-Jul-2012
• Referred By: ASTM D5062-09(2020) - Standard Test Method for Resin Solution Dilutability by Volumetric/Gravimetric Determination
• Effective Date: 15-Jul-2012

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D1725 − 12
Standard Practice for
Preparing Resin Solutions for Viscosity Measurement by
1
Bubble Time Method
This standard is issued under the fixed designation D1725; 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 4. Summary of Practice
1.1 This practice provides instructions for preparing resin 4.1 Solid resins are dissolved in organic solvents by cold-
solutions viscosity measurement by bubble time method.
cut or hot-cut methods in the laboratory. The viscosity of such
prepared solutions, or of commercial solutions of resins is then
1.2 The values stated in SI units are to be regarded as the
determined by the bubble time method (Test Method D1545).
standard. The values given in parentheses are for information
The bubble seconds are approximately equal to stokes.
only.
1.3 This standard does not purport to address all of the
5. Apparatus
safety concerns, if any, associated with its use. It is the
5.1 Bath, constant-temperature, consisting of a cylindrical
responsibility of the user of this standard to establish appro-
glass jar of about 5-gal capacity, or an aquarium tank with
priate safety and health practices and determine the applica-
controls capable of maintaining the temperature at 25 6 0.1°C
bility of regulatory limitations prior to use. For specific hazard
with water as the bath medium.
statements, see Section 7.
5.2 Bottles, 225-mL (8-oz), wide-mouth, screw cap.
2. Referenced Documents
5.3 Cellophane, sheet, cut into 102 or 127- mm (4 or 5-in.)
2
2.1 ASTM Standards:
squares.
D154 Guide for Testing Varnishes
5.4 Corks, No. 2 short taper, to fit viscosity tubes.
D1545 Test Method for Viscosity of Transparent Liquids by
Bubble Time Method
5.5 Holder for Viscosity Tubes, preferably a mechanical
4
D6440 Terminology Relating to Hydrocarbon Resins
holder withrackandpinionforinvertingthetubes.Theholder
E691 Practice for Conducting an Interlaboratory Study to
should be checked with a small level and T-square to make
Determine the Precision of a Test Method
certain it holds the tubes in an exact vertical position after
being placed in the constant-temperature bath.
2.2 Other Document:
OSHA Regulations, 29 CFR, paragraphs 19.10.1000 and
5.6 Bottle Shaker, preferably one which will give end-over-
3
1910.1200
end agitation.
5.7 Timing Device, such as a stopwatch or electric stop
3. Terminology
clock capable of being read to a precision of 0.1 s.
3.1 For definitions related to hydrocarbon resins see Termi-
5.8 Viscosity Tubes, of clear glass and flat bottoms, having
nology D6440.
10.65 6 0.025-mm inside diameter and 114 6 1-mm outside
length. Plainly legible lines shall be located on the tubes as
follows:
1
This practice is under the jurisdiction of ASTM Committee D01 on Paint and
27±0.5mm
Related Coatings, Materials, and Applications and is the direct responsibility of
100 ± 0.5 mm
Subcommittee D01.33 on Polymers and Resins.
108 ± 0.5 mm
Current edition approved July 15, 2012. Published September 2012. Originally
approved in 1960. Last previous edition approved in 2004 as D1725 – 04. DOI:
All distances shall be measured from the bottom outside of
10.1520/D1725–12.
the tube. The distance between the first and second lines shall
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
be 73 6 0.5 mm.
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
3
AvailablefromU.S.GovernmentPrintingOfficeSuperintendentofDocuments,
4
732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http:// Suitable mechanical viscosity tube holders are available from various labora-
www.access.gpo.gov. tory supply companies.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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D1725 − 12
6. Solvent 8.3 Hot-Cut Solutions:
8.3.1 Prepare 100 g of solution as follows:Weigh a 250-mL
6.1 The solvent used should be mutually agreed upon
Erlenmeyer flask with a ground joint to the nearest 0.05 g.
between the purchaser and the manufacturer. Toluene, xylene,
Weigh into the flask to the nearest 0.05 g the appropriate
mineral spirits, alcohols, etc., are used for the preparation of
amount of solvent (40 g for a 60 % solution).
solutions of resins. For a given resin, the viscosity obtained
8.3.2 Weigh into the flask to the nearest 0.05 g the correct
will depend on the solvent used. In case of dispute, both
amount (60 g for a 60 % solution) of the freshly crushed
...

This document is not anASTM standard and is intended only to provide the user of anASTM 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:D1725–04
Standard Test Method for Viscosity of Resin
SolutionsDesignation:D1725–12
Standard Practice for
Preparing Resin Solutions for Viscosity Measurement by
1
Bubble Time Method
This standard is issued under the fixed designation D1725; 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
1.1This test method covers the measurement of the viscosity of resin solutions.
1.1 This practice provides instructions for preparing resin solutions viscosity measurement by bubble time method.
1.2 The values stated in SI 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. For specific hazard statements, see Section 7.
2. Referenced Documents
2
2.1 ASTM Standards:
D154 Guide for Testing Varnishes
D1545 Test Method for Viscosity of Transparent Liquids by Bubble Time Method
D6440 Terminology Relating to Hydrocarbon Resins
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
2.2 Other Document:
3
OSHA Regulations, 29 CFR, paragraphs 19.10.1000 and 1910.1200
3. Terminology
3.1 For definitions related to hydrocarbon resins see Terminology D6440.
4. Summary of Test Method Summary of Practice
4.1 Solid resins are dissolved in organic solvents by cold-cut or hot-cut methods in the laboratory. The viscosity of such
prepared solutions, or of commercial solutions of resins is then determined by the bubble time method (Test Method D1545). The
bubble seconds are approximately equal to stokes.
5. Apparatus
5.1 Bath, constant-temperature, consisting of a cylindrical glass jar of about 5-gal capacity, or an aquarium tank with controls
capable of maintaining the temperature at 25 6 0.1°C with water as the bath medium.
5.2 Bottles, 225-mL (8-oz), wide-mouth, screw cap.
5.3 Cellophane, sheet, cut into 102 or 127- mm (4 or 5-in.) squares.
1
This test method practice is under the jurisdiction ofASTM Committee D01 on Paint and Related Coatings, Materials, andApplications and is the direct responsibility
of Subcommittee D01.33 on Polymers and Resins.
´1
Current edition approved Mar. 1, 2004. Published March 2004. Originally approved in 1960. Last previous edition approved in 1962 as D1725–62(1996) . DOI:
10.1520/D1725-04.
Current edition approved July 15, 2012. Published September 2012. Originally approved in 1960. Last previous edition approved in 2004 as D1725 – 04. DOI:
10.1520/D1725–12.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from U.S. Government Printing Office Superintendent of Documents, 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http://
www.access.gpo.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
D1725–12
5.4 Corks, No. 2 short taper, to fit viscosity tubes.
4
5.5 Holder for Viscosity Tubes, preferably a mechanical holder with rack and pinion for inverting the tubes. The holder should
be checked with a small level and T-square to make certain it holds the tubes in an exact vertical position after being placed in
the constant-temperature bath.
5.6 Bottle Shaker, preferably one which will give end-over-end agitation.
5.7 Timing Device, such as a stopwatch or electric stop clock capable of being read to a precision of 0.1 s.
5.8 Viscosity Tubes, of clear glass and flat bottoms, having 10.65 6 0.025-mm inside diameter and 114 6 1-mm outside length.
Plainly legible lines shall be located on the tubes as follows:
27 6 0.5 mm
100 6 0.5 mm
108 6 0.5 mm
All distances shall be measured from the bottom outside of the tube. The distance between the first and second lines shall be
73 6 0.5 mm.
6. Solvent
6.1 The solvent used should be mutually agreed upon between the purchaser and the manufacturer. Toluene, xylene, miner
...