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ASTM

ASTM D5959-96(2007)

(Test Method)

Standard Test Method for Bulk Density of Level Paintbrush Filaments

Standard Test Method for Bulk Density of Level Paintbrush Filaments

SIGNIFICANCE AND USE
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 given in inch-pound 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.

General Information

Status
Historical
Publication Date
31-May-2007
ICS
87.100 - Paint coating equipment
Technical Committee
D01 - Paint and Related Coatings, Materials, and Applications
Drafting Committee
D01.61 - Paint Application Tools
Current Stage
Ref Project

Relations

Replaces
ASTM D5959-96(2003) - Standard Test Method for Bulk Density of Level Paintbrush Filaments
Effective Date
01-Jun-2007
Replaced By
ASTM D5959-12 - Standard Test Method for Bulk Density of Level Paintbrush Filaments
Effective Date
01-Jun-2012

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ASTM D5959-96(2007) - Standard Test Method for Bulk Density of Level Paintbrush FilamentsASTM D5959-96(2007) - Standard Test Method for Bulk Density of Level Paintbrush Filaments
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ASTM D5959-96(2007) - Standard Test Method for Bulk Density of Level Paintbrush Filaments
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Standards Content (Sample)


Designation: D5959 − 96 (Reapproved 2007)
Standard Test Method for
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 and cylinder just described. The scale must be fixed in place so
thatitreadsaccuratelythediametersofmetalstandardsthatare
1.1 This test method covers a procedure for measuring the
1.82 in. (46.2 mm) and 2.06 in. (52.3 mm) diameter.
weight of filaments per unit volume.
4.2 Weighing Device, accurate to 0.1 g to weigh the bundle.
1.2 This test method is applicable only to monofilament
with consistent longitudinal (level) profiles. 4.3 Scale, accurate to 0.02 in. (0.5 mm) to measure the
bundle length.
1.3 The values given in inch-pound units are to be regarded
as the standard. The values given in parentheses are for 4.4 Air Supply, with pressure regulator set for 50 psig.
information only.
4.5 Calibration Standards, 1.82 (46.2 mm) and 2.06 in.
1.4 This standard does not purport to address all of the
(52.3 mm) in diameter.
safety concerns, if any, associated with its use. It is the
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-
5.1 The test result will depend on the cross-sectional shape,
bility of regulatory limitations prior to use.
the polymer, and the length of the bundle selected for the test.
To a lesser extent it will also depend on the filament diameter
2. Summary of Test Method
since thin filaments pack more efficiently than large ones.
2.1 The weight and volume of a bundle of filaments is
5.2 The device, as pictured in Fig. 1, is designed to measure
measured, and the bundle density is calculated.
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
3. Significance and Use
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
4.1.1 Air Valve
combined to adjust the bundle diameter to the desired range.
4.1.2 Miniature Air Cylinder, dual acting, heavy duty.
6.2 Weigh the sample bundle to the nearest 0.1 g (W). Make
4.1.3 Assorted parts shown in Fig. 1 are machined from 304
sure that the weight excludes the wrap or rubber bands used to
stainless steel and assembled as shown along with the air valve
hold the filament together.
6.3 Measure the lengths of five individual filaments to the
This test method is under the jurisdiction of ASTM Committee D01 on Paint
nearest 0.02 in. (0.5 mm) with a ruler and average the lengths
and Related Coatings, Materials, andApplications and is the direct responsibility of
to determine bundle length (L).
Subcommittee D01.61 on Paint Application Tools.
Current edition approved June 1, 2007. Published August 2007. Originally
approved in 1996. Last previous addition approved in 2003 as D5959 - 96 (2003).
DOI: 10.1520/D5959-96R07.
2 4
Air valve such as Model 6676
...

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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.
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