ASTM D6957-12(2018)
(Practice)Standard Practice for Measuring Curl in Paint Brush Filling Material
Standard Practice for Measuring Curl in Paint Brush Filling Material
SIGNIFICANCE AND USE
3.1 It is important for the manufacturing and performance of a brush to have filaments with minimal curl.
SCOPE
1.1 This practice describes the procedure for measuring curl in synthetic filament.
1.2 This practice is applicable to filament 2 to 5 in. (50.8 to 127 mm) in length.
1.3 This practice is applicable to tapered filament or level filament.
1.4 This practice is applicable to loose filling material and material removed from a brush.
1.5 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.
1.6 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.7 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-Aug-2018
- Technical Committee
- D01 - Paint and Related Coatings, Materials, and Applications
- Drafting Committee
- D01.61 - Paint Application Tools
Relations
- Effective Date
- 01-Sep-2018
Overview
ASTM D6957-12(2018): Standard Practice for Measuring Curl in Paint Brush Filling Material outlines a systematic procedure for evaluating curl in synthetic paint brush filaments. Developed by ASTM International, this standard supports manufacturers and quality assurance professionals in maintaining the performance and lifespan of paint brushes by ensuring filament straightness. Minimizing curl in paint brush filaments is critical for manufacturing consistency and optimal brushing results.
Key Topics
- Measurement of Filament Curl: Defines procedures for quantifying the deviation from straightness in synthetic filaments using a filament curl deviation chart.
- Scope of Applicability:
- Filament Length: Suitable for measuring filaments from 2 to 5 inches (50.8 to 127 mm).
- Filament Types: Applicable to both tapered and level filaments.
- Material Type: Can be used with loose filling material as well as material extracted from manufactured brushes.
- Standardized Units: Test values should be reported in inch-pound units. SI units are included for reference but are not the standard measurement.
- Safety & Compliance: Users must establish appropriate safety procedures and comply with relevant regulatory requirements when implementing this standard.
- International Development: This standard was developed in harmony with global standardization guidelines, supporting compliance with WTO TBT Committee principles.
Applications
- Quality Control in Brush Manufacturing: Ensuring minimal filament curl promotes uniformity in paint application, brush durability, and customer satisfaction.
- Material Evaluation: Enables suppliers and manufacturers to assess the suitability of synthetic filaments before assembly into brushes.
- Performance Benchmarking: Provides a reliable method to compare batches or sources of synthetic filament and identify potential issues before final production.
- Product Development and R&D: Assists in testing new filament materials or manufacturing processes aimed at reducing filament curl.
- Regulatory and Industry Compliance: Ensures that brush products meet industry standards and documented specifications commonly accepted in global markets.
Related Standards
- ASTM D01.61: Paint Application Tools - The technical subcommittee responsible for maintaining ASTM D6957.
- ASTM D01: Paint and Related Coatings, Materials, and Applications - The broader committee overseeing relevant testing and evaluation standards.
- WTO TBT Principles: Aligns with World Trade Organization Technical Barriers to Trade Committee recommendations for international standardization processes.
- Other Filament Quality Standards: Related ASTM and ISO standards for paint brush materials and synthetic fiber testing.
Keywords: ASTM D6957-12, paint brush filament, synthetic filaments, filament curl, quality control, brush manufacturing, standard practice, deviation measurement, filament straightness, brush performance.
Frequently Asked Questions
ASTM D6957-12(2018) is a standard published by ASTM International. Its full title is "Standard Practice for Measuring Curl in Paint Brush Filling Material". This standard covers: SIGNIFICANCE AND USE 3.1 It is important for the manufacturing and performance of a brush to have filaments with minimal curl. SCOPE 1.1 This practice describes the procedure for measuring curl in synthetic filament. 1.2 This practice is applicable to filament 2 to 5 in. (50.8 to 127 mm) in length. 1.3 This practice is applicable to tapered filament or level filament. 1.4 This practice is applicable to loose filling material and material removed from a brush. 1.5 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. 1.6 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.7 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 It is important for the manufacturing and performance of a brush to have filaments with minimal curl. SCOPE 1.1 This practice describes the procedure for measuring curl in synthetic filament. 1.2 This practice is applicable to filament 2 to 5 in. (50.8 to 127 mm) in length. 1.3 This practice is applicable to tapered filament or level filament. 1.4 This practice is applicable to loose filling material and material removed from a brush. 1.5 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. 1.6 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.7 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 D6957-12(2018) 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 D6957-12(2018) has the following relationships with other standards: It is inter standard links to ASTM D6957-12. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ASTM D6957-12(2018) 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: D6957 − 12 (Reapproved 2018)
Standard Practice for
Measuring Curl in Paint Brush Filling Material
This standard is issued under the fixed designation D6957; 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 2. Terminology
1.1 This practice describes the procedure for measuring curl 2.1 Definitions of Terms Specific to This Standard:
in synthetic filament. 2.1.1 paint brush filament, n—a synthetic polymer extrusion
used in brushing material.
1.2 This practice is applicable to filament 2 to 5 in. (50.8 to
2.1.2 filament curl, n—deviation from straight, along the
127 mm) in length.
length of a filament.
1.3 This practice is applicable to tapered filament or level
2.1.3 butt-end, n—the larger end of a tapered filament;
filament.
either end of a level filament.
1.4 This practice is applicable to loose filling material and
material removed from a brush.
3. Significance and Use
1.5 The values stated in inch-pound units are to be regarded
3.1 It is important for the manufacturing and performance of
as standard. The values given in parentheses are mathematical
a brush to have filaments with minimal curl.
conversions to SI units that are provided for information only
4. Apparatus
and are not considered standard.
1.6 This standard does not purport to address all of the 4.1 Filament curl deviation chart. See Fig. 1.
safety concerns, if any, associated with its use. It is the
5. Procedure
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter- 5.1 For Testing Synthetic Filaments:
mine the applicability of regulatory limitations prior to use.
5.1.1 Select filaments to be measured.
1.7 This international standard was developed in accor-
5.1.2 Allow filaments to acclimate to room temperature 70
dance with internationally recognized principles on standard-
to 75°F (21 to 24°C) at least two hours.
ization established in the Decision on Principles for the
5.1.3 Place a filament on the filament curl deviation chart
Development of International Stand
...
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