ASTM D6957-08
(Practice)Standard Practice for Measuring Curl in Paint Brush Filling Material
Standard Practice for Measuring Curl in Paint Brush Filling Material
SIGNIFICANCE AND USE
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 given in inch-pound units are to be regarded as the standard as this is the dominant measurement system used in the paint brush industry. 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 and health practices and determine the applicability of regulatory limitations prior to use.
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Designation: D6957 − 08
Standard Practice for
1
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 2.1.1 paint brush filament, n—a synthetic polymer extrusion
used in brushing material.
1.1 This practice describes the procedure for measuring curl
2.1.2 filament curl, n—deviation from straight, along the
in synthetic filament.
length of a filament.
1.2 This practice is applicable to filament 2 to 5 in. (50.8 to
2.1.3 butt-end, n—the larger end of a tapered filament;
127 mm) in length.
either end of a level filament.
1.3 This practice is applicable to tapered filament or level
filament.
3. Significance and Use
1.4 This practice is applicable to loose filling material and
3.1 It is important for the manufacturing and performance of
material removed from a brush.
a brush to have filaments with minimal curl.
1.5 The values given in inch-pound units are to be regarded
4. Apparatus
as the standard as this is the dominant measurement system
4.1 Filament curl deviation chart. See Fig. 1.
used in the paint brush industry. The values given in parenthe-
ses are mathematical conversions to SI units that are provided
5. Procedure
for information only and are not considered standard.
5.1 For Testing Synthetic Filaments:
1.6 This standard does not purport to address all of the
5.1.1 Select filaments to be measured.
safety concerns, if any, associated with its use. It is the
5.1.2 Allow filaments to acclimate to room temperature 70
responsibility of the user of this standard to establish appro-
to 75°F (21 to 24°C) at least two hours.
priate safety and health practices and determine the applica-
5.1.3 Place a filament on the filament curl deviation chart
bility of regulatory limitations prior to use.
with butt-end at the x-reference point (see Fig. 1).
2. Terminology
5.1.4 Record the degree of deviation from straight at the
other end of the filament.
2.1 Definitions of Terms Specific to This Standard:
5.
...
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:D6957–03 Designation: D 6957 – 08
Standard Practice for
1
Measuring Curl in Paint Brush Filling Material
This standard is issued under the fixed designation D 6957; 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 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.
1.4The values given in-pound units are to be regarded as the standard as this is the dominant measurement system used in the
paint brush industry. The values given in parentheses are for information only.
1.5
1.4 This practice is applicable to loose filling material and material removed from a brush.
1.5 The values given in inch-pound units are to be regarded as the standard as this is the dominant measurement system used
in the paint brush industry. 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 and health practices and determine the applicability of regulatory
limitations prior to use.
2. Terminology
2.1 Definitions of Terms Specific to This Standard:
2.1.1 paint brush filament, n—a synthetic polymer extrusion used in brushing material.
2.1.2 filament curl, n—deviation from straight, along the length of a filament.
2.1.3 butt-end, n—the larger end of a tapered filament; either end of a level filament.
3. Significance and Use
3.1 It is important for the manufacturing and performance of a brush to have filaments with minimal curl.
4. Apparatus
4.1 Filament curl deviation chart. See Fig. 1.
5. Procedure
5.1 For
...
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:D6957–03 Designation: D 6957 – 08
Standard Practice for
1
Measuring Curl in Paint Brush Filling Material
This standard is issued under the fixed designation D 6957; 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 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.
1.4The values given in-pound units are to be regarded as the standard as this is the dominant measurement system used in the
paint brush industry. The values given in parentheses are for information only.
1.5
1.4 This practice is applicable to loose filling material and material removed from a brush.
1.5 The values given in inch-pound units are to be regarded as the standard as this is the dominant measurement system used
in the paint brush industry. 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 and health practices and determine the applicability of regulatory
limitations prior to use.
2. Terminology
2.1 Definitions of Terms Specific to This Standard:
2.1.1 paint brush filament, n—a synthetic polymer extrusion used in brushing material.
2.1.2 filament curl, n—deviation from straight, along the length of a filament.
2.1.3 butt-end, n—the larger end of a tapered filament; either end of a level filament.
3. Significance and Use
3.1 It is important for the manufacturing and performance of a brush to have filaments with minimal curl.
4. Apparatus
4.1 Filament curl deviation chart. See Fig. 1.
5. Procedure
5.1 For
...
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