ASTM D5959-12(2017)
(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
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.
1.5 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
- Published
- Publication Date
- 31-May-2017
- Technical Committee
- D01 - Paint and Related Coatings, Materials, and Applications
- Drafting Committee
- D01.61 - Paint Application Tools
Relations
- Effective Date
- 01-Jun-2017
Overview
ASTM D5959-12(2017): Standard Test Method for Bulk Density of Level Paintbrush Filaments specifies the procedure for determining the bulk density of level paintbrush filaments. Developed by ASTM International, this widely recognized standard is critical for brush manufacturers and raw material suppliers. Measuring bulk density enables accurate estimation of the filament weight needed to produce a specified number of paintbrushes, improving both material planning and product consistency.
This test method applies exclusively to paintbrush monofilaments with consistent longitudinal profiles (level filaments). It defines clear guidelines for specimen selection, apparatus requirements, measurement procedures, and result calculation, facilitating reliable comparisons and ensuring product quality across the industry.
Key Topics
- Measurement of Bulk Density: The standard details how to measure the weight and volume of a bundled filament sample, enabling calculation of bulk density expressed in g/in³.
- Applicability: Restricts use to level monofilaments, providing guidance on handling filaments of different materials and cross-sections.
- Test Method: Requires assembling calibrated apparatus, precise measurement of bundle diameter and length, and calculation based on measured values.
- Accuracy and Repeatability: Provides information on precision between and within laboratories, supporting reproducible and consistent results.
- International Relevance: Developed in accordance with the WTO's TBT Committee guidelines, emphasizing its acceptance and credibility for global trade.
- Safety Statement: Users are responsible for implementing suitable safety and health practices beyond what is described in the standard.
Applications
The ASTM D5959-12(2017) standard is essential for:
- Paintbrush Manufacturers: Accurate determination of bulk density allows manufacturers to reliably forecast raw filament requirements and minimize material waste, supporting cost-effective production.
- Supply Chain Management: Raw material suppliers can consistently characterize and deliver filaments meeting customer specifications by using the same standardized method.
- Quality Control: Regular measurement of filament density ensures brushes meet performance expectations for weight, usability, and application consistency.
- Product Development: Research and development teams use bulk density data to compare new filament materials and optimize brush design for different applications.
- Regulatory and Trade Compliance: Provides internationally recognized criteria for importers, exporters, and regulatory bodies, facilitating smooth global transactions in the paintbrush industry.
Related Standards
Several other ASTM and international standards are often referenced or used together with ASTM D5959-12(2017):
- ASTM D01 Series: Covering paint and related coatings, materials, and application tools.
- ISO Standards: Related to plastics, filaments, and brushes, providing additional test methods and product requirements.
- ASTM D618: Standard Practice for Conditioning Plastics for Testing, relevant for preconditioning filament materials.
- ASTM D747: Test Method for Apparent Bending Modulus of Plastics by means of a Cantilever Beam, for additional material characterization.
Keywords: bulk density, level paintbrush filaments, ASTM D5959, brush manufacturing, filament measurement, paintbrush quality control, monofilament, international standards, raw material estimation, product consistency.
Frequently Asked Questions
ASTM D5959-12(2017) is a standard published by ASTM International. Its full title is "Standard Test Method for Bulk Density of Level Paintbrush Filaments". This standard covers: 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. 1.5 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.
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. 1.5 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.
ASTM D5959-12(2017) is classified under the following ICS (International Classification for Standards) categories: 87.100 - Paint coating equipment. The ICS classification helps identify the subject area and facilitates finding related standards.
ASTM D5959-12(2017) has the following relationships with other standards: It is inter standard links to ASTM D5959-12. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ASTM D5959-12(2017) is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
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.
Designation: D5959 − 12 (Reapproved 2017)
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 4.1.2 Miniature Air Cylinder, dual acting, heavy duty.
4.1.3 Assorted parts shown in Fig. 1 are machined from 304
1.1 This test method covers a procedure for measuring the
stainless steel and assembled as shown along with the air valve
weight of filaments per unit volume.
and cylinder just described. The scale must be fixed in place so
1.2 This test method is applicable only to monofilament
that it reads accurately the diameters of metal standards that are
with consistent longitudinal (level) profiles.
1.82 in. (46.2 mm) and 2.06 in. (52.3 mm) diameter.
1.3 The values stated in inch-pound units are to be regarded
4.2 Weighing Device, accurate to 0.1 g to weigh the bundle.
as standard. The values given in parentheses are mathematical
4.3 Scale, accurate to 0.02 in. (0.5 mm) to measure the
conversions to SI units that are provided for information only
bundle length.
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
safety concerns, if any, associated with its use. It is the
4.5 Calibration Standards, 1.82 (46.2 mm) and 2.06 in.
responsibility of the user of this standard to establish appro-
(52.3 mm) in diameter.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. 5. Sampling, Test Specimens and Test Units
1.5 This international standard was developed in accor-
5.1 The test result will depend on the cross-sectional shape,
dance with internationally recognized principles on standard-
the polymer, and the length of the bundle selected for the test.
ization established in the Decision on Principles for the
To a lesser extent it will also depend on the filament diameter
Development of International Standards, Guides and Recom-
since thin filaments pack more efficiently than large ones.
mendations issued by the World Trade Organization Technical
5.2 The device, as pictured in Fig. 1, is designed to measure
Barriers to Trade (TBT) Committee.
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
2. Summary of Test Method
averaged.
2.1 The weight and volume of a bundle of filaments is
measured, and the bundle density is calculated.
6. Procedure
3. Significance and Use
6.1 Select a sample of approximately 2-in. (50-mm) diam-
eter. Filament may be removed from a sample so the bundle
3.1 Filaments are available in a variety of cross sections and
diameter falls within the scale range (1.82 to 2.06 in.) (46.2 to
materials.Ameasure of bulk density permits the brushmaker to
52.3 mm). One convenient method to adjust the sample
estimate the weight of filament required to prepare a given
diameter to the desired range is to fill a 2-in. (50-mm) inside
number of brushes.
diameter tube. If the sample is too small, like samples may be
4. Apparatus
combined to adjust the bundle diameter to the desired range.
4.1 The apparatus requires some machining, and is as-
6.2 Weigh the sample bundle to the nearest 0.1 g (W). Make
sembled as shown in Fig. 1 from the following equipment:
sure that the weight excludes the wrap or rubber bands used to
4.1.1 Air Valve
hold the filament together.
This test method is under the jurisdiction of ASTM Committee D01 on Paint
3 9
and Related Coatings, Materials, andApplications and is the direct respons
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