ASTM D5959-12

Standard Test Method for Bulk Density of Level Paintbrush Filaments

SIGNIFICANCE AND USE
3.1 Filaments are available in a variety of cross sections and materials. A measure of bulk density permits the brushmaker to estimate the weight of filament required to prepare a given number of brushes.
SCOPE
1.1 This test method covers a procedure for measuring the weight of filaments per unit volume.  
1.2 This test method is applicable only to monofilament with consistent longitudinal (level) profiles.  
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.4 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: 31-May-2012
• 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 D5959-96(2007) - Standard Test Method for Bulk Density of Level Paintbrush Filaments
• Effective Date: 01-Jun-2012
• Replaced By: ASTM D5959-12(2017) - Standard Test Method for Bulk Density of Level Paintbrush Filaments
• Effective Date: 01-Jun-2017

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D5959 − 12
Standard Test Method for
1
Bulk Density of Level Paintbrush Filaments
This standard is issued under the fixed designation D5959; 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 4.1.3 Assorted parts shown in Fig. 1 are machined from 304
stainless steel and assembled as shown along with the air valve
1.1 This test method covers a procedure for measuring the
and cylinder just described. The scale must be fixed in place so
weight of filaments per unit volume.
that it reads accurately the diameters of metal standards that are
1.2 This test method is applicable only to monofilament
1.82 in. (46.2 mm) and 2.06 in. (52.3 mm) diameter.
with consistent longitudinal (level) profiles.
4.2 Weighing Device, accurate to 0.1 g to weigh the bundle.
1.3 The values stated in inch-pound units are to be regarded
4.3 Scale, accurate to 0.02 in. (0.5 mm) to measure the
as standard. The values given in parentheses are mathematical
bundle length.
conversions to SI units that are provided for information only
and are not considered standard. 4.4 Air Supply, with pressure regulator set for 50 psig.
1.4 This standard does not purport to address all of the
4.5 Calibration Standards, 1.82 (46.2 mm) and 2.06 in.
4
safety concerns, if any, associated with its use. It is the
(52.3 mm) in diameter.
responsibility of the user of this standard to establish appro-
5. Sampling, Test Specimens and Test Units
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
5.1 The test result will depend on the cross-sectional shape,
the polymer, and the length of the bundle selected for the test.
2. Summary of Test Method
To a lesser extent it will also depend on the filament diameter
since thin filaments pack more efficiently than large ones.
2.1 The weight and volume of a bundle of filaments is
measured, and the bundle density is calculated.
5.2 The device, as pictured in Fig. 1, is designed to measure
diameters ranging from 1.82 to 2.06 in. (46.2 to 52.3 mm).
3. Significance and Use
Make sure that both ends are measured and the results are
averaged.
3.1 Filaments are available in a variety of cross sections and
materials.Ameasure of bulk density permits the brushmaker to
6. Procedure
estimate the weight of filament required to prepare a given
6.1 Select a sample of approximately 2-in. (50-mm) diam-
number of brushes.
eter. Filament may be removed from a sample so the bundle
diameter falls within the scale range (1.82 to 2.06 in.) (46.2 to
4. Apparatus
52.3 mm). One convenient method to adjust the sample
4.1 The apparatus requires some machining, and is as-
diameter to the desired range is to fill a 2-in. (50-mm) inside
sembled as shown in Fig. 1 from the following equipment:
diameter tube. If the sample is too small, like samples may be
2
4.1.1 Air Valve
combined to adjust the bundle diameter to the desired range.
3
4.1.2 Miniature Air Cylinder, dual acting, heavy duty.
6.2 Weigh the sample bundle to the nearest 0.1 g (W). Make
sure that the weight excludes the wrap or rubber bands used to
hold the filament together.
1
This test method is under the jurisdiction of ASTM Committee D01 on Paint
and Related Coatings, Materials, andApplications and is the direct responsibility of
6.3 Measure the lengths of five individual filaments to the
Subcommittee D01.61 on Paint Application Tools.
nearest 0.02 in. (0.5 mm) with a ruler and average the lengths
CurrenteditionapprovedJune1,2012.PublishedJuly2012.Originallyapproved
to determine bundle length (L).
in 1996. Last previous addition approved in 2007 as D5959 – 96 (2007). DOI:
10.1520/D5959-12.
2
Air valve such as Model 6676 available from Hunt Valve Co., 1913 E. State
Street, Salem, Ohio 44460, or equivalent, has been found suitable for this purpose.
3 9
Miniature air cylinder such as Model H95-5D, ⁄16-in. (14.3-mm) bore, 5-in.
4
(127-mm) stoke, dual acting, heavy duty, available from Clippard Instrument Steel cylinders machined to diameters of 1.82 in. with a tolerance of 0.001 in.
Laboratory, 7390 Colerain Road, Cincinnati, OH 45239, or equivalent, has been (46.2 mm with a tolerance of 0.02 mm) and 2.060 in. with a tolerance of 0.001 in.
found suitable for this purpose. (52.3 mm with a tolerance of 0.02 mm).
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D5959 − 12
end of the bundle inside the loop of measuring tape in the
device shown in Fig. 1. Operate the air valve lever 10 times to
stabilize. Actu
...

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: D5959 − 96 (Reapproved 2007) D5959 − 12
Standard Test Method for
1
Bulk Density of Level Paintbrush Filaments
This standard is issued under the fixed designation D5959; 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
1.1 This test method covers a procedure for measuring the weight of filaments per unit volume.
1.2 This test method is applicable only to monofilament with consistent longitudinal (level) profiles.
1.3 The values givenstated in inch-pound units are to be regarded as the standard. The values given in parentheses are for
information only.mathematical conversions to SI units that are provided for information only and are not considered standard.
1.4 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. Summary of Test Method
2.1 The weight and volume of a bundle of filaments is measured, and the bundle density is calculated.
3. Significance and Use
3.1 Filaments are available in a variety of cross sections and materials. A measure of bulk density permits the brushmaker to
estimate the weight of filament required to prepare a given number of brushes.
4. Apparatus
4.1 The apparatus requires some machining, and is assembled as shown in Fig. 1 from the following equipment:
2
4.1.1 Air Valve
3
4.1.2 Miniature Air Cylinder, dual acting, heavy duty.
4.1.3 Assorted parts shown in Fig. 1 are machined from 304 stainless steel and assembled as shown along with the air valve
and cylinder just described. The scale must be fixed in place so that it reads accurately the diameters of metal standards that are
1.82 in. (46.2 mm) and 2.06 in. (52.3 mm) diameter.
4.2 Weighing Device, accurate to 0.1 g to weigh the bundle.
4.3 Scale, accurate to 0.02 in. (0.5 mm) to measure the bundle length.
4.4 Air Supply, with pressure regulator set for 50 psig.
4
4.5 Calibration Standards, 1.82 (46.2 mm) and 2.06 in. (52.3 mm) in diameter.
5. Sampling, Test Specimens and Test Units
5.1 The test result will depend on the cross-sectional shape, the polymer, and the length of the bundle selected for the test. To
a lesser extent it will also depend on the filament diameter since thin filaments pack more efficiently than large ones.
5.2 The device, as pictured in Fig. 1, is designed to measure diameters ranging from 1.82 to 2.06 in. (46.2 to 52.3 mm). Make
sure that both ends are measured and the results are averaged.
1
This test method is under the jurisdiction of ASTM Committee D01 on Paint and Related Coatings, Materials, and Applications and is the direct responsibility of
Subcommittee D01.61 on Paint Application Tools.
Current edition approved June 1, 2007June 1, 2012. Published August 2007July 2012. Originally approved in 1996. Last previous addition approved in 20032007 as
D5959 - 96 (2003).(2007). DOI: 10.1520/D5959-96R07.10.1520/D5959-12.
2
Air valve such as Model 6676 available from Hunt Valve Co., 1913 E. State Street, Salem, Ohio 44460, or equivalent, has been found suitable for this purpose.
3 9
Miniature air cylinder such as Model H95-5D, ⁄16-in. (14.3-mm) bore, 5-in. (127-mm) stoke, dual acting, heavy duty, available from Clippard Instrument Laboratory,
7390 Colerain Road, Cincinnati, OH 45239, or equivalent, has been found suitable for this purpose.
4
Steel cylinders machined to diameters of 1.82 in. with a tolerance of 0.001 in. (46.2 mm with a tolerance of 0.02 mm) and 2.060 in. with a tolerance of 0.001 in. (52.3
mm with a tolerance of 0.02 mm).
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D5959 − 12
FIG. 1 Apparatus to Measure Bundle Diameter
6. Procedure
6.1 Select a sample of approximately 2-in. (50-mm) diameter. Filament may be removed from a sample so the bundle diameter
falls within the scale range (1.82 to 2.06 in.) (46.2 to 52.3 mm). One convenient method to adjust the sample diameter to the desired
range is to fill a 2-in. (50-mm) inside diameter tube. If the sample is too small, like samples may be combined to adjust the bundle
diameter to the desired range.
...