ASTM D5959-96

Standard Test Method for Bulk Density of Level Paintbrush Filaments

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.  
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: 09-May-1996
• Technical Committee: D01 - Paint and Related Coatings, Materials, and Applications
• Drafting Committee: D01.61 - Paint Application Tools

Relations

• Replaced By: ASTM D5959-96(2003) - Standard Test Method for Bulk Density of Level Paintbrush Filaments
• Effective Date: 10-Jul-2003

Standards Content (Sample)

NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: D 5959 – 96
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Test Method for
Bulk Density of Level Paintbrush Filaments
This standard is issued under the fixed designation D 5959; 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 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.
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 appro-
priate safety and health practices and determine the applica-
bility 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 as-
sembled as shown in Fig. 1 from the following equipment:
4.1.1 Air Valve
4.1.2 Miniature Air Cylinder, dual acting, heavy duty.
FIG. 1 Apparatus to Measure Bundle Diameter
4.1.3 Assorted parts shown in Fig. 1 are machined from 304
4.2 Weighing Device, accurate to 0.1 g to weigh the bundle.
stainless steel and assembled as shown along with the air valve
and cylinder just described. The scale must be fixed in place so 4.3 Scale, accurate to 0.02 in. (0.5 mm) to measure the
bundle length.
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. 4.4 Air Supply, with pressure regulator set for 50 psig.
4.5 Calibration Standards, 1.82 (46.2 mm) and 2.06 in.
(52.3 mm) in diameter.
This test method is under the jurisdiction of ASTM Committee D-1 on Paint
and Related Coatings, Materials, and Applications and is the direct responsibility of
5. Sampling, Test Specimens and Test Units
Subcommittee D01.61 on Paint Application Tools.
Current edition approved May 10, 1996. Published July 1996.
5.1 The test result will depend on the cross-sectional shape,
Air valve such as Model 6676 available from Hunt Valve Co., 1913 E. State
the polymer, and the length of the bundle selected for the test.
Street, Salem, Ohio 44460, or equivalent, has been found suitable for this purpose.
3 To a lesser extent it will also depend on the filament diameter
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 since thin filaments pack more efficiently than large ones.
Laboratory, 7390 Colerain Road, Cincinnati, OH 45239, or equivalent, has been
found suitable for this purpose.
4 5
An assembled bulk density test device available from T. S. Simms and Co., 33 Steel cylinders machined to diameters of 1.82 in. with a tolerance of 0.001 in.
Bridge Road, St. John, New Bru
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