ASTM D4143-89(2009)
(Guide)Standard Guide for Testing Latex Vehicles
Standard Guide for Testing Latex Vehicles
ABSTRACT
This guide details the standard methods suitable for testing latex vehicles. Included here are methods for latex sampling, nonvolatile content, minimum film formation temperature, qualitative polymeric analysis, density, viscosity, consistency, water content, pH, and surface tension.
SCOPE
1.1 This guide covers methods suitable for testing latex vehicles. Certain of these methods were developed expressly for testing latex vehicles. Others were developed for testing or analyzing formulated water- or solvent-based coatings but would be equally applicable for testing lattices.
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 and health practices and determine the applicability of regulatory limitations prior to use.
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Designation: D4143 − 89 (Reapproved2009)
Standard Guide for
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Testing Latex Vehicles
This standard is issued under the fixed designation D4143; 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 D3925 Practice for Sampling Liquid Paints and Related
Pigmented Coatings
1.1 This guide covers methods suitable for testing latex
D4017 Test Method for Water in Paints and Paint Materials
vehicles. Certain of these methods were developed expressly
by Karl Fischer Method
for testing latex vehicles (Table 1). Others were developed for
D4758 Test Method for Nonvolatile Content of Latexes
testing or analyzing formulated water- or solvent-based coat-
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(Withdrawn 2007)
ings but would be equally applicable for testing lattices.
E70 Test Method for pH of Aqueous Solutions With the
1.2 The values stated in SI units are to be regarded as
Glass Electrode
standard. No other units of measurement are included in this
standard.
3. Latex Sampling Methods
1.3 This standard does not purport to address all of the
3.1 Practice D3925 describes sampling procedures for for-
safety concerns, if any, associated with its use. It is the
mulated (pigmented) coatings that are equally applicable to
responsibility of the user of this standard to establish appro-
latex vehicles.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
4. Nonvolatile Content
4.1 Test Method D2369 has been found suitable for the
2. Referenced Documents
determination of the volatile content of many latex vehicles.
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2.1 ASTM Standards:
Nonvolatile content is obtained by subtracting the results from
D562 Test Method for Consistency of Paints Measuring
100.
KrebsUnit(KU)ViscosityUsingaStormer-TypeViscom-
NOTE 1—Determinations of the volatile content using a shorter bake
eter
time than the 60 min recommended in Test Method D2369 should be
D1417 Test Methods for Rubber Latices—Synthetic
noted in the report of the results.
D1475 Test Method For Density of Liquid Coatings, Inks,
4.2 The nonvolatile content of latexes may also be deter-
and Related Products
mined for quality control purposes with Test Method D4758
D2196 Test Methods for Rheological Properties of Non-
which specifies baking at 180°C for 20 min, conditions
Newtonian Materials by Rotational (Brookfield type)
selected to allow completion of testing in1hor less. For latex
Viscometer
vehicles used in certain air-dry or low temperature bake
D2354 Test Method for Minimum Film FormationTempera-
coatings,aswellasforthosethatcontaintemperature-sensitive
ture (MFFT) of Emulsion Vehicles
materials, the use of the milder test conditions of Test Method
D2369 Test Method for Volatile Content of Coatings
D2369 (see 4.1) will more accurately reflect the effective
D3168 Practice for Qualitative Identification of Polymers in
nonvolatile content.
Emulsion Paints
4.2.1 TestMethodD4758isnotintendedtobeemployedfor
D3792 Test Method forWater Content of Coatings by Direct
determining the volatile organic content (VOC) of formulated
Injection Into a Gas Chromatograph
coatings.
5. Minimum Film Formation Temperature (MFT)
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This guide is under the jurisdiction of ASTM Committee D01 on Paint and
Related Coatings, Materials, and Applications and is the direct responsibility of
5.1 The MFTis the lowest temperature at which a latex will
Subcommittee D01.33 on Polymers and Resins.
form a continuous film. Test Method D2354 employs draw-
Current edition approved Dec. 1, 2009. Published December 2009. Originally
down application of the test latex on a substrate over which a
approved in 1982. Last previous edition approved in 2001 as D4143 – 89 (2001).
DOI: 10.1520/D4143–89R09.
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
3
Standards volume information, refer to the standard’s Document Summary page on The last approved version of this historical standard is referenced on
the ASTM website. www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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D4143 − 89 (2009)
TABLE 1 Methods for Testing Latex Vehicles
8. Viscosity
Test Method Section ASTM Designation
8.1 Lattices are non-Newtonian materials having rheologi-
Latex sampling methods 3 D3925
cal properties that can be characterized by apparent viscosity
Nonvolatile content 3.1 D2369, D4758
measurements made using rotational-type viscometers. Test
Minimum film formation temperature 5 D2354
(MFT)
Methods
...
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