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ASTM D3793-06

(Test Method)

Standard Test Method for Low-Temperature Coalescence of Latex Paint Films by Porosity Measurement (Withdrawn 2012)

Standard Test Method for Low-Temperature Coalescence of Latex Paint Films by Porosity Measurement (Withdrawn 2012)

SIGNIFICANCE AND USE
This test method provides no absolute information, rather ranking only of the selected series of paints.
This test method can provide a pass-fail situation if known acceptable and unacceptable paints are included in the test.
SCOPE
1.1 This test method covers the determination of the comparative coalescence of a series of latex paints by determining the porosity of films dried at standard and at low temperature. Porosity is evaluated with a penetrating medium as in Test Method D 3258.
1.2 The texture of the film, which can affect cleanup, will influence the results of the test. Stain applied to a high-hiding paint will not lower the reflectance as much as the same stain applied to a low-hiding paint of equal porosity. These points must be considered in comparing the different paints.
1.3 This method should be used only for comparative testing within one laboratory, as the numerical results obtained by different laboratories do not usually agree.
1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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.
WITHDRAWN RATIONALE
This test method covers the determination of the comparative coalescence of a series of latex paints by determining the porosity of films dried at standard and at low temperature. Porosity is evaluated with a penetrating medium as in Test Method D3258.
Formerly under the jurisdiction of Committee D01 on Paint and Related Coatings, Materials, and Applications, this test method was withdrawn in June 2012 in accordance with section 10.5.3.1 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date.

General Information

Status
Withdrawn
Publication Date
31-Oct-2006
Withdrawal Date
31-May-2012
ICS
87.040 - Paints and varnishes
Technical Committee
D01 - Paint and Related Coatings, Materials, and Applications
Drafting Committee
D01.42 - Architectural Coatings
Current Stage
Ref Project

Relations

Replaces
ASTM D3793-04 - Standard Test Method for Low-Temperature Coalescence of Latex Paint Films
Effective Date
01-Nov-2006
Referred By
ASTM D6763-16(2022) - Standard Guide for Testing Exterior Wood Stains and Clear Water Repellents
Effective Date
01-Nov-2006
Referred By
ASTM D3730-17(2022) - Standard Guide for Testing High-Performance Interior Architectural Wall Coatings
Effective Date
01-Nov-2006
Referred By
ASTM D6577-15(2019) - Standard Guide for Testing Industrial Protective Coatings
Effective Date
01-Nov-2006
Referred By
ASTM D5324-16(2022) - Standard Guide for Testing Water-Borne Architectural Coatings
Effective Date
01-Nov-2006
Referred By
ASTM D7306-07(2017) - Standard Practice for Testing Low Temperature Film-Formation of Latex Paints by Visual Observation
Effective Date
01-Nov-2006

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ASTM D3793-06 - Standard Test Method for Low-Temperature Coalescence of Latex Paint Films by Porosity Measurement (Withdrawn 2012)ASTM D3793-06 - Standard Test Method for Low-Temperature Coalescence of Latex Paint Films by Porosity Measurement (Withdrawn 2012)
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ASTM D3793-06 - Standard Test Method for Low-Temperature Coalescence of Latex Paint Films by Porosity Measurement (Withdrawn 2012)
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Please contact ASTM International (www.astm.org) for the latest information.
Designation: D3793 − 06
Standard Test Method for
Low-Temperature Coalescence of Latex Paint Films by
1
Porosity Measurement
This standard is issued under the fixed designation D3793; 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 relative humidity in both cases, and their reflectances mea-
sured.Aspecial colored penetrating medium is applied to each,
1.1 This test method covers the determination of the com-
the excess removed in a specified manner, and reflectances
parative coalescence of a series of latex paints by determining
measured again. The difference between the readings on the
the porosity of films dried at standard and at low temperature.
stained and unstained films indicates the porosity of that film;
Porosity is evaluated with a penetrating medium as in Test
the difference between the readings for the two temperatures
Method D3258.
indicates the coalescence of that film compared to others in the
1.2 The texture of the film, which can affect cleanup, will
series.
influence the results of the test. Stain applied to a high-hiding
paint will not lower the reflectance as much as the same stain
4. Significance and Use
applied to a low-hiding paint of equal porosity. These points
4.1 This test method provides no absolute information,
must be considered in comparing the different paints.
rather ranking only of the selected series of paints.
1.3 This method should be used only for comparative
4.2 This test method can provide a pass-fail situation if
testing within one laboratory, as the numerical results obtained
known acceptable and unacceptable paints are included in the
by different laboratories do not usually agree.
test.
1.4 The values stated in SI units are to be regarded as the
standard. The values given in parentheses are for information
5. Apparatus and Materials
only.
5.1 Plate Glass Panel (base for cardboard panel).
1.5 This standard does not purport to address all of the
3
5.2 Strippable Adhesive.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- 5.3 Test Panel—Smooth porous cardboard pane, such as the
4
back of a white drawdown chart.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
5.4 Film Applicator, 150 mm (6 in.) wide with a clearance
of 150 µm (6 mils).
2. Referenced Documents
NOTE 1—It should be noted that some applicators are marked with the
2
2.1 ASTM Standards:
nominal wet film thickness, which is one half of the clearance.
D3258 Test Method for Porosity of White or Near White
1
5.5 Film Applicator, 140 mm (5 ⁄2 in.) wide with a clearance
Paint Films by Staining
5
of 255 µm (10 mils ).
E1347 Test Method for Color and Color-Difference Mea-
5.6 Reflectometer, meeting the requirements of Test Method
surement by Tristimulus Colorimetry
E1347.
3. Summary of Test Method
5.7 Cold Cabinet, maintaining 4.5 6 1°C (40 6 2°F ) and
3.1 The test paints are applied to porous cardboard panels,
50 6 5 % relative humidity.
dried at standard temperature and at 4.5°C (40°F ) with 50 %
1
5.8 Camel’s Hair Brush, approximately 13 mm ( ⁄2 in.)
1 wide.
This test method is under the jurisdiction of ASTM Committee D01 on Paint
and Related Coatings, Materials, andApplications and is the direct responsibility of
Subcommittee D01.42 on Architectural Coatings.
3
Current edition approved Nov. 1, 2006. Published November 2006. Originally Any strippable adhesive such as represented by the following formulas: vinyl
approved in 1979. Last previous edition approved in 2004 as D3793 – 04. DOI: acrylic emulsion (800 parts by weight) and polyethylene glycol, molecular weight
10.1520/D3793-06. 1450, (16 parts by weight).
2 4
For referenced ASTM standards, visit the ASTM website, www.astm.org, or White cardboard drawdown chart, FormWA, from the Leneta Co., 15Whitney
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Rd., Mahwah, NJ 07430, was used in the original test method to get the results.
5
Standards volume information, refer to the standard’s Document Summary page on The Dow latex film caster from Byk-Gardner, Inc. Gardner Laboratory, 2435
the ASTM website. Linden Lane, Silver Spring, MD 20910, was used originally in this test method.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Please contact ASTM International (www.astm.org) f
...

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