ASTM D5301-92(2002)

Standard Practice for Physical Characterization of Paint Brushes

SIGNIFICANCE AND USE
It is important to recognize that a brush can be a mixture of several chemically different filaments or bristles, or both, in several cross sections, thicknesses and lengths. The following procedures will be helpful in identifying brush composition.
SCOPE
1.1 This practice covers the dimensions, terminology, materials and characteristics generally considered of importance to those within, or dealing with paint brushes, and describes methods of determining these parameters. This practice is not meant to be a definitive analytical method to deformulate brushes.
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.

General Information

• Status: Historical
• Publication Date: 14-Oct-1992
• ICS: 87.100 - Paint coating equipment
• Technical Committee: D01 - Paint and Related Coatings, Materials, and Applications
• Drafting Committee: D01.61 - Paint Application Tools

Relations

• Replaces: ASTM D5301-92(1997) - Standard Practice for Physical Characterization of Paint Brushes
• Effective Date: 15-Oct-1992
• Replaced By: ASTM D5301-92(2008) - Standard Practice for Physical Characterization of Paint Brushes
• Effective Date: 01-Nov-2008
• Referred By: ASTM D7073-20 - Standard Guide for Application and Evaluation of Brush and Roller Applied Paint Films
• Effective Date: 15-Oct-1992
• Referred By: ASTM D5068-04(2019) - Standard Practice for Preparation of Paint Brushes for Evaluation
• Effective Date: 15-Oct-1992
• Referred By: ASTM D7488-11(2016) - Standard Test Method for Open Time of Latex Paints
• Effective Date: 15-Oct-1992
• Referred By: ASTM D7801-17 - Standard Terminology for Paint Brush Application Tools
• Effective Date: 15-Oct-1992
• Referred By: ASTM D5913-96(2019) - Standard Test Method for Evaluation of Cleanability of Paint Brushes
• Effective Date: 15-Oct-1992

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D5301–92(Reapproved2002)
Standard Practice for
Physical Characterization of Paint Brushes
This standard is issued under the fixed designation D 5301; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This practice covers the dimensions, terminology, ma-
terials and characteristics generally considered of importance
to those within, or dealing with paint brushes, and describes
methods of determining these parameters. This practice is not
meant to be a definitive analytical method to deformulate
brushes.
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 appro-
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
2. Terminology
2.1 Definitions:
2.1.1 chisel (or chiseled)—a description of the configura-
tion of the tip of the brush as being of a more or less convex
FIG. 1 Microtome
shape across the thickness dimension.
2.1.2 flat tip—a description of the configuration of the tip of
the brush as being flat or of uniform length across the thickness
dimension.
4. Determination of Head Dimensions
2.1.3 flagged—a term describing the tip of a filament or
4.1 Width—Determine the width by measuring the brushing
bristle as being split resulting in a multiplicity of filament ends.
material adjacent to the ferrule in the wide or broad dimension,
2.1.4 tipped—a term describing the tip of a filament or
using any accurate linear measuring device. Report dimensions
bristle as coming to a point.
to the nearest 3 mm ( ⁄8 in.).
2.1.5 microtome—a device for holding a number of filament
4.2 Thickness—Determine the thickness by measuring the
or bristle materials in a rigid state for a cross sectional
brushing material adjacent to the ferrule, in the narrow dimen-
examination under a microscope (see Fig. 1).
sion, using any accurate linear measuring device. Report
dimensions to the nearest 1 mm ( ⁄16 in.).
3. Significance and Use
4.3 Length Clear (Length Out)—Determine the length by
3.1 It is important to recognize that a brush can be a mixture
measuring the exposed filament or bristle length from the edge
of several chemically different filaments or bristles, or both, in
of the ferrule to its tip, using any accurate linear measuring
several cross sections, thicknesses and lengths. The following
device. Measure the brush on each end of the width and
procedures will be helpful in identifying brush composition.
average the measurements so obtained to give the mean value.
Report dimensions to the nearest 1 mm ( ⁄16 in.).
This practice is under the jurisdiction of ASTM Committee D01 on Paint and
NOTE 1—In the case of an angular sash brush, indicate whether the
Related Coatings, Materials, and Applications and is the direct responsibility of
ferrule is angular or straight.
Subcommittee D01.61 onPaint Application Tools .
Current edition approved Oct. 15, 1992. Published December 1992.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
D5301–92 (2002)
5. Brush Tip Configuration 7.2 Ferrule Material:
7.2.1 Determine the surface material of the ferrule by
5.1 Describe the configuration at the tip of the head as
conventional chemical analysis. Usual materials are tin plated
chiseled or flat (see 2.1.1 and 2.1.2).
steel, nickel plated steel, lacquer coated brass or copper plated
6. Brushing Material Characteristics
steel and stainless steel.
7.2.2 Determine if the surface is lacquered by vigorously
6.1 Cross-Sectional Shape—Determine the cross-sectional
rubbing the ferrule using a cloth wetted with a solvent such as
shape of the filaments or bristles by inserting a representative
sample of brushing material into the slot of a microtome, acetone or butyl acetate. If lacquered, the finish will dissolve.
7.3 Ferrule Shape—Describe the shape of the ferrule open-
cutting the material flush with the surface of the microtome
with a razor blade, and examining i
...