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ASTM D3837-95(2019)

(Practice)

Standard Practice for Preparing a Solution of Alkali–Soluble Resins

Standard Practice for Preparing a Solution of Alkali–Soluble Resins

SIGNIFICANCE AND USE
4.1 This practice is suitable for all types of akalali-soluble resins. The resin manufacturer shall specify the percent ammonium hydroxide to be used (based on the equivalent weight of resin) and the maximum temperature to be used to achieve solution.
SCOPE
1.1 This practice is a procedure for preparing solutions of alkali-soluble resins in aqueous ammonia and determining the characteristics of such solutions.  
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 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
Published
Publication Date
30-Jun-2019
ICS
83.080.10 - Thermosetting materials
Technical Committee
D21 - Polishes
Drafting Committee
D21.02 - Raw Materials
Current Stage
Ref Project

Relations

Replaces
ASTM D3837-95(2012) - Standard Practice for Preparing a Solution of Alkali–Soluble Resins
Effective Date
01-Jul-2019
Refers
ASTM E70-24 - Standard Test Method for pH of Aqueous Solutions With the Glass Electrode
Effective Date
01-Jan-2024
Refers
ASTM E70-07(2015) - Standard Test Method for pH of Aqueous Solutions With the Glass Electrode
Effective Date
01-Jun-2015
Refers
ASTM D1544-04(2010) - Standard Test Method for Color of Transparent Liquids (Gardner Color Scale)
Effective Date
01-Jun-2010
Refers
ASTM D2834-95(2008) - Standard Test Method for Nonvolatile Matter (Total Solids) in Water-Emulsion Floor Polishes, Solvent-Based Floor Polishes, and Polymer-Emulsion Floor Polishes
Effective Date
01-Mar-2008
Refers
ASTM D1544-04 - Standard Test Method for Color of Transparent Liquids (Gardner Color Scale)
Effective Date
01-Jun-2004
Refers
ASTM D1544-98 - Standard Test Method for Color of Transparent Liquids (Gardner Color Scale)
Effective Date
10-Jan-1998
Refers
ASTM D2834-95(2002) - Standard Test Method for Nonvolatile Matter (Total Solids) in Water-Emulsion Floor Polishes, Solvent-Based Floor Polishes, and Polymer-Emulsion Floor Polishes
Effective Date
15-May-1995
Refers
ASTM D2834-95 - Standard Test Method for Nonvolatile Matter (Total Solids) in Water-Emulsion Floor Polishes, Solvent-Based Floor Polishes, and Polymer-Emulsion Floor Polishes
Effective Date
15-May-1995

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ASTM D3837-95(2019) - Standard Practice for Preparing a Solution of Alkali–Soluble ResinsASTM D3837-95(2019) - Standard Practice for Preparing a Solution of Alkali–Soluble Resins
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ASTM D3837-95(2019) - Standard Practice for Preparing a Solution of Alkali–Soluble Resins
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Standards Content (Sample)


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: D3837 − 95 (Reapproved 2019)
Standard Practice for
Preparing a Solution of Alkali–Soluble Resins
This standard is issued under the fixed designation D3837; 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.
1. Scope 4. Significance and Use
1.1 This practice is a procedure for preparing solutions of 4.1 This practice is suitable for all types of akalali-soluble
alkali-soluble resins in aqueous ammonia and determining the resins. The resin manufacturer shall specify the percent am-
characteristics of such solutions. monium hydroxide to be used (based on the equivalent weight
of resin) and the maximum temperature to be used to achieve
1.2 The values stated in SI units are to be regarded as
solution.
standard. No other units of measurement are included in this
standard.
5. Reagents and Materials
1.3 This standard does not purport to address all of the
5.1 Reaction Vessel—A three-neck, round-bottom 1000-mL
safety concerns, if any, associated with its use. It is the
flask of heat-resistant glass.
responsibility of the user of this standard to establish appro-
5.2 Thermometer, laboratory grade, partial immersion ther-
priate safety, health, and environmental practices and deter-
mometer. Range: from 0 to 230°F, 2° divisions; or from−20 to
mine the applicability of regulatory limitations prior to use.
110°C, 1° divisions.
1.4 This international standard was developed in accor-
dance with internationally recognized principles on standard-
5.3 Reflux Condenser.
ization established in the Decision on Principles for the
5.4 Stirrer—A motor-driven, variable-speed agitator. The
Development of International Standards, Guides and Recom-
shaft and blade shall be of nonreactive material.
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee. 5.5 Heat Source—Electric heating mantle or gas burner.
5.6 Ammonium Hydroxide, reagent grade, 28 to 30% NH
2. Referenced Documents
(26° Baumé). This solution shall be refrigerated while in
2.1 ASTM Standards:
storage.
D1544TestMethodforColorofTransparentLiquids(Gard-
5.7 Distilled Water, or water of equal purity.
ner Color Scale)
D2834Test Method for Nonvolatile Matter (Total Solids) in
6. Preparation of Sample
Water-Emulsion Floor Polishes, Solvent-Based Floor
6.1 Resinreceivedingroundorflakedformshallbeusedas
Polishes, and Polymer-Emulsion Floor Polishes
received. Select a sample representative of the material under
E70Test Method for pH of Aqueous Solutions With the
test.
Glass Electrode
6.2 Resin received in lump form shall be crushed or ground
3. Summary of Practice
and passed through a 10-mesh screen before testing. Select a
sample representative of the material under test.
3.1 Alkali-soluble resins are dissolved in water by chemi-
cally reacting available carboxylic acid sites on the resin
7. Procedure
molecule with a base to form water-soluble carboxylate salts.
In this practice, the base used is ammonium hydroxide. 7.1 Insert the reflux condenser into one of the sidearms of
the flask and support the assembly suitably. Insert the agitator
throughthecenterneckandchargetheflaskwiththecalculated
This practice is under the jurisdiction of ASTM Committee D21 on Polishes
amount of ammonium hydroxide and water. Using moderate
and is the direct responsibility of Subcommittee D21.02 on Raw Materials.
agitation, slowly add the resin to the contents of the flask.
Currente
...

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ASTM D7750-23(Test Method)
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5.1 This method provides a simple means of characterizing the cure behavior of a thermosetting resin specimen that is a representation of a composite part. The diameter of the specimen is approximately 38 mm and the thickness ranges from 2.6 mm to 3.2 mm. This corresponds to a sample volume of approximately 3 cm3 to 4 cm3. The data may be used for quality control, research and development, and verifying the cure within processing equipment including autoclaves.  
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Note 1: It is recommended tha...
SCOPE
1.1 This method covers the use of dynamic mechanical instrumentation for determination and reporting of the thermal advancement of cure behavior of thermosetting resin on an inert filler or fiber in a laboratory. It may also be used for determining the cure properties of resins without fillers or fibers. These encapsulated specimens are deformed in torsional shear using dynamic mechanical methods.  
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1.4.1 Exception—The Fahrenheit temperature measurement in 10.1 is provided for information only and is not considered standard.  
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5.1 This test method is suitable for research or for quality control to characterize aromatic isocyanates and low-acidity prepolymers. Acidity correlates with performance in some polyurethane systems.
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1.2 The values stated in SI units are to be regarded as the standard.  
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