ASTM D3891-08
(Practice)Standard Practice for Preparation of Glass Panels for Testing Paint, Varnish, Lacquer, and Related Products
Standard Practice for Preparation of Glass Panels for Testing Paint, Varnish, Lacquer, and Related Products
SIGNIFICANCE AND USE
The procedures described in this practice are designed to provide uniform glass panels for testing of paint, varnish, lacquer, conversion coatings and related products.
SCOPE
1.1 This practice covers the preparation of glass panels for subsequent testing of paint, varnish, lacquer, and related products.
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.
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Designation: D3891 − 08
StandardPractice for
Preparation of Glass Panels for Testing Paint, Varnish,
1
Lacquer, and Related Products
This standard is issued under the fixed designation D3891; 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 4.3 Glass of the following types may be specified in the
applicable test methods:
1.1 This practice covers the preparation of glass panels for
4.3.1 Window Glass, (float glass) the surface of which is
subsequent testing of paint, varnish, lacquer, and related
2 plain and free of irregularities.
products.
NOTE 1—Float glass is the most common kind of glass used for
1.2 The values stated in SI units are to be regarded as the
windows. It is produced by floating a ribbon of red hot glass on a bath of
standard. The values given in parentheses are for information
molten tin. The sides of the float glass exposed to tin and to air have
only.
somewhat different characteristics. The tin side contains tin diffused into
the glass structure. Paint generally releases more easily from the tin side,
1.3 This standard does not purport to address all of the
but it may be contaminated with tin, which could affect chemical analysis.
safety concerns, if any, associated with its use. It is the
Paint generally adheres better to the air side. The sides can be distin-
responsibility of the user of this standard to establish appro-
guished by exposing the glass to a UV-Alight (“black light”): the air side
priate safety and health practices and determine the applica-
will appear clear, and the tin side will appear frosted. Depending on the
application, the user may want to choose which side is appropriate for that
bility of regulatory limitations prior to use.
test, and make sure that the same side is coated on every panel. Note
however, that if the window glass used is not float glass (for example,
2. Referenced Documents
plate glass), both sides of the glass will be the same.
3
2.1 ASTM Standards:
4.3.2 Clear Plate Glass, not less than 5 mm thick.
D1152 Specification for Methanol (Methyl Alcohol)
4.3.3 Plate Glass that has been ground uniformly on one
D1193 Specification for Reagent Water
side with 1F carborundum.
4.3.4 Black Structural Glass, one side of which has been
3. Significance and Use
polished to a smooth, high-gloss surface.
3.1 Theproceduresdescribedinthispracticearedesignedto
4.3.5 White Structural Glass, one side of which has been
provide uniform glass panels for testing of paint, varnish,
polished to a smooth, high gloss.
lacquer, conversion coatings and related products.
5. Method of Preparation
4. Reagents and Materials
5.1 New Panels—Using a clean lintless cloth, wipe the
4.1 Purity of Water—Unless otherwise indicated, references
panel with a solvent mixture consisting of equal volumes of
to water shall be understood to mean reagent water conforming
VM&Pnaphtha and xylene or of 3 volumes of VM&Pnaphtha
to Type IV of Specification D1193.
and 1 volume of 2-methoxypropanol or with water. When all
4.2 Solvents—Varnish Makers’ and Painters (VM&P)
soluble and loosely adhering soil has been washed off, flush
naphtha, xylene, 2-methoxypropanol, and methanol complying
with clean solvent.Allow panels to dry at room temperature or
with the appropriate specifications (see Specification D1152).
force dry at a temperature no higher than 150°C (302°F).After
cooling to room temperature, rub with a clean lintless cloth if
necessary.
1
This practice is under the jurisdiction of ASTM Committee D01 on Paint and
5.1.1 The surface after cleaning shall be water-break free.
Related Coatings, Materials, and Applications and is the direct responsibility of
Subcommittee D01.27 on Accelerated Testing.
This is determined by momentarily immersing in reagent water
Current edition approved Nov. 1, 2008. Published December 2008. Originally
one panel of each twenty prepared. If a continuous water film
´1
approved in 1980. Last previous edition approved in 2002 as D3891 – 96 (2002) .
is not retained (that is, the water film breaks), immerse the
DOI: 10.1520/D3891-08.
2
panel in methyl alcohol to obtain a water-break-free surface.
This practice is intended to be equivalent to Method 2021 of U.S. Federal Test
Method Standard 141.
After removal, dry at a temperature of 50 to 95°C (122 to
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
203°F) and allow to cool before coating or storing.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
5.1.2 Other combinations or organic reagents that will
Standards volume information, refer to the standard’s Document Summary page
...
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:D3891–96 Designation: D 3891 – 08
Standard Practice for
Preparation of Glass Panels for Testing Paint, Varnish,
1
Lacquer, and Related Products
This standard is issued under the fixed designation D 3891; 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
2
1.1 This practice covers the preparation of glass panels for subsequent testing of paint, varnish, lacquer, and related products.
1.2
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.
2. Referenced Documents
3
2.1 ASTM Standards:D364Specification for Industrial Grade Xylene
D 1152 Specification for Methanol (Methyl Alcohol)
D 1193 Specification for Reagent Water
3. Significance and Use
3.1 The procedures described in this practice are designed to provide uniform glass panels for testing of paint, varnish, lacquer,
conversion coatings and related products.
4. Reagents and Materials
4.1 Purity of Water—Unless otherwise indicated, references to water shall be understood to mean reagent water conforming to
Type IV of Specification D 1193.
4.2 Solvents—Varnish Makers’ and Painters (VM&P) naphtha, xylene, 2-methoxypropanol, and methanol complying with the
appropriate specifications (see Specifications D364 and Specification D 1152).
4.3 Glass of the following types may be specified in the applicable test methods:
4.3.1 Window Glass, (float glass) the surface of which is plain and free of irregularities.
NOTE 1—Float glass is the most common kind of glass used for windows. It is produced by floating a ribbon of red hot glass on a bath of molten tin.
The sides of the float glass exposed to tin and to air have somewhat different characteristics. The tin side contains tin diffused into the glass structure.
Paint generally releases more easily from the tin side, but it may be contaminated with tin, which could affect chemical analysis. Paint generally adheres
better to the air side. The sides can be distinguished by exposing the glass to a UV-Alight (“black light”): the air side will appear clear, and the tin side
will appear frosted. Depending on the application, the user may want to choose which side is appropriate for that test, and make sure that the same side
is coated on every panel. Note however, that if the window glass used is not float glass (for example, plate glass), both sides of the glass will be the same.
4.3.2 Clear Plate Glass, not less than 5 mm thick.
4.3.3 Plate Glass that has been ground uniformly on one side with 1F carborundum.
4.3.4 Black Structural Glass, one side of which has been polished to a smooth, high-gloss surface.
4.3.5 White Structural Glass, one side of which has been polished to a smooth, high gloss.
1
This practice is under the jurisdiction of ASTM Committee D-1 on Paint and Related Coatings, Materials, and Applications and is the direct responsibility of
Subcommittee D01.27 on Accelerated Tests for Protective Coatings.
Current edition approved May 10, 1996. Published July 1996. Originally published as D3891–80. Last previous edition D3891–90.
1
This practice is under the jurisdiction of ASTM Committee D01 on Paint and Related Coatings, Materials, and Applications and is the direct responsibility of
Subcommittee D01.27 on Accelerated Testing.
´1
Current edition approved Nov. 1, 2008. Published December 2008. Originally approved in 1980. Last previous edition approved in 2002 as D 3891 – 96 (2002) .
2
This practice is intended to be equivalent to Method 2021 of U.S. Federal Test Method Standard 141.
3
Discontinued, see 1982
3
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
, Vol 06.03.volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
D3891–08
5. Method of Preparation
5.1 Ne
...
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.
´1
Designation:D3891–96(Reapproved2002) Designation: D 3891 – 08
Standard Practice for
Preparation of Glass Panels for Testing Paint, Varnish,
1
Lacquer, and Related Products
This standard is issued under the fixed designation D 3891; 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
´ NOTE—Keywords were added editorially in July 2002.
1. Scope
2
1.1 This practice covers the preparation of glass panels for subsequent testing of paint, varnish, lacquer, and related products.
1.2
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.
2. Referenced Documents
3
2.1 ASTM Standards:D364Specification for Industrial Grade Xylene
D 1152 Specification for Methanol (Methyl Alcohol)
D 1193 Specification for Reagent Water
3. Significance and Use
3.1 The procedures described in this practice are designed to provide uniform glass panels for testing of paint, varnish, lacquer,
conversion coatings and related products.
4. Reagents and Materials
4.1 Purity of Water—Unless otherwise indicated, references to water shall be understood to mean reagent water conforming to
Type IV of Specification D 1193.
4.2 Solvents—Varnish Makers’ and Painters (VM&P) naphtha, xylene, 2-methoxypropanol, and methanol complying with the
appropriate specifications (see Specifications D364 and Specification D 1152).
4.3 Glass of the following types may be specified in the applicable test methods:
4.3.1 Window Glass, (float glass) the surface of which is plain and free of irregularities.
NOTE 1—Float glass is the most common kind of glass used for windows. It is produced by floating a ribbon of red hot glass on a bath of molten tin.
The sides of the float glass exposed to tin and to air have somewhat different characteristics. The tin side contains tin diffused into the glass structure.
Paint generally releases more easily from the tin side, but it may be contaminated with tin, which could affect chemical analysis. Paint generally adheres
better to the air side. The sides can be distinguished by exposing the glass to a UV-Alight (“black light”): the air side will appear clear, and the tin side
will appear frosted. Depending on the application, the user may want to choose which side is appropriate for that test, and make sure that the same side
is coated on every panel. Note however, that if the window glass used is not float glass (for example, plate glass), both sides of the glass will be the same.
4.3.2 Clear Plate Glass, not less than 5 mm thick.
4.3.3 Plate Glass that has been ground uniformly on one side with 1F carborundum.
4.3.4 Black Structural Glass, one side of which has been polished to a smooth, high-gloss surface.
4.3.5 White Structural Glass, one side of which has been polished to a smooth, high gloss.
1
This practice is under the jurisdiction of ASTM Committee D01 on Paint and Related Coatings, Materials, and Applications and is the direct responsibility of
Subcommittee D01.27 on Accelerated Testing.
Current edition approved May 10, 1996. Published July 1996. Originally published as D3891–80. Last previous edition D3891–90.
´1
Current edition approved Nov. 1, 2008. Published December 2008. Originally approved in 1980. Last previous edition approved in 2002 as D 3891 – 96 (2002) .
2
This practice is intended to be equivalent to Method 2021 of U.S. Federal Test Method Standard 141.
3
Discontinued, see 1982
3
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
, Vol 06.03.volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
D3891–08
5. Method of Preparation
5.1 New Panels—Using a clean lintless cloth, wipe the panel with a solvent mixture consisting of equal volumes of VM&P
naphtha and xylene or of 3 volumes of
...
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