ASTM D3891-08(2019)

Standard Practice for Preparation of Glass Panels for Testing Paint, Varnish, Lacquer, and Related Products

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.
SCOPE
1.1 This practice covers the preparation of glass panels for subsequent testing of paint, varnish, lacquer, and related products.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, 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: Historical
• Publication Date: 31-Dec-2018
• ICS: 87.040 - Paints and varnishes
• Technical Committee: D01 - Paint and Related Coatings, Materials, and Applications
• Drafting Committee: D01.27 - Accelerated Testing

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D3891 − 08 (Reapproved 2019)
Standard Practice 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. Reagents and Materials
4.1 Purity of Water—Unless otherwise indicated, references
1.1 This practice covers the preparation of glass panels for
to water shall be understood to mean reagent water conforming
subsequent testing of paint, varnish, lacquer, and related
2
to Type IV of Specification D1193.
products.
4.2 Solvents—Varnish Makers’ and Painters (VM&P)
1.2 The values stated in SI units are to be regarded as the
naphtha, xylene, 2-methoxypropanol, and methanol complying
standard. The values given in parentheses are for information
with the appropriate specifications (see Specification D1152).
only.
4.3 Glass of the following types may be specified in the
1.3 This standard does not purport to address all of the
applicable test methods:
safety concerns, if any, associated with its use. It is the
4.3.1 Window Glass, (float glass) the surface of which is
responsibility of the user of this standard to establish appro-
plain and free of irregularities.
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
NOTE 1—Float glass is the most common kind of glass used for
1.4 This international standard was developed in accor- 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
dance with internationally recognized principles on standard-
somewhat different characteristics. The tin side contains tin diffused into
ization established in the Decision on Principles for the
the glass structure. Paint generally releases more easily from the tin side,
Development of International Standards, Guides and Recom-
but it may be contaminated with tin, which could affect chemical analysis.
mendations issued by the World Trade Organization Technical
Paint generally adheres better to the air side. The sides can be distin-
guished by exposing the glass to a UV-A light (“black light”): the air side
Barriers to Trade (TBT) Committee.
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
2. Referenced Documents
test, and make sure that the same side is coated on every panel. Note
3 however, that if the window glass used is not float glass (for example,
2.1 ASTM Standards:
plate glass), both sides of the glass will be the same.
D1152 Specification for Methanol (Methyl Alcohol)
4.3.2 Clear Plate Glass, not less than 5 mm thick.
D1193 Specification for Reagent Water
4.3.3 Plate Glass that has been ground uniformly on one
side with 1F carborundum.
3. Significance and Use
4.3.4 Black Structural Glass, one side of which has been
3.1 The procedures described in this practice are designed to
polished to a smooth, high-gloss surface.
provide uniform glass panels for testing of paint, varnish,
4.3.5 White Structural Glass, one side of which has been
lacquer, conversion coatings and related products.
polished to a smooth, high gloss.
5. Method of Preparation
1
This practice is under the jurisdiction of ASTM Committee D01 on Paint and
5.1 New Panels—Using a clean lintless cloth, wipe the
Related Coatings, Materials, and Applications and is the direct responsibility of
Subcommittee D01.27 on Accelerated Testing. panel with a solvent mixture consisting of equal volumes of
Current edition approved Jan. 1, 2019. Published January 2019. Originally
VM&P naphtha and xylene or of 3 volumes of VM&P naphtha
approved in 1980. Last previous edition approved in 2014 as D3891 – 08 (2014).
and 1 volume of 2-methoxypropanol or with water. When all
DOI: 10.1520/D3891-08R19.
2
soluble and loosely adhering soil has been washed off, flush
This practice is intended to be equivalent to Method 2021 of U.S. Federal Test
Method Standard 141.
with clean solvent. Allow panels to dry at room temperature or
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
force dry at a temperature no higher than 150°C (302°F). After
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
cooling to room temperature, rub with a clean lintless cloth if
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. necessary.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Bo
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM 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 − 08 (Reapproved 2014) D3891 − 08 (Reapproved 2019)
Standard Practice 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
2
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 safety, health, and healthenvironmental 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.
2. Referenced Documents
3
2.1 ASTM Standards:
D1152 Specification for Methanol (Methyl Alcohol)
D1193 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 D1193.
4.2 Solvents—Varnish Makers’ and Painters (VM&P) naphtha, xylene, 2-methoxypropanol, and methanol complying with the
appropriate specifications (see Specification D1152).
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-A light (“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.
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 Jan. 1, 2014Jan. 1, 2019. Published January 2014January 2019. Originally approved in 1980. Last previous edition approved in 20082014 as
D3891 – 08.D3891 – 08 (2014). DOI: 10.1520/D3891-08R14.10.1520/D3891-08R19.
2
This practice is intended to be equivalent to Method 2021 of U.S. Federal Test Method Standard 141.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’sstandard’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

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D3891 − 08 (2019)
4.3.5 White Structural Glass, one side of which has been polished to a smooth, high gloss.
5. Method of Pr
...