ASTM F2621-12
(Practice)Standard Practice for Determining Response Characteristics and Design Integrity of Arc Rated Finished Products in an Electric Arc Exposure
Standard Practice for Determining Response Characteristics and Design Integrity of Arc Rated Finished Products in an Electric Arc Exposure
SIGNIFICANCE AND USE
5.1 This practice can be used for a range of purposes including incident replication, development of improved arc rated protective products, and the determination of the response characteristics and design integrity of new or used arc rated finished products intended for use as protection for workers exposed to electric arcs.
5.1.1 In-service garments can have very different wash and wear histories. Caution must be used when applying test results from a particular used garment to other used garments. Factors to consider include the garments’ wear histories, work environments, and tasks for which the garments were worn; the methods and facilities for garment maintenance; the number of launderings or processings the garments have been subjected to; and other factors that could impact the protective performance of different garments. Test results from specific used garments should be considered only an approximation of results that might be obtained from other used garments of the same type.
5.1.2 Because of the variability of the arc exposure, different heat transmission values may result for individual sensors. The results of each sensor are evaluated in accordance with Section 12.
5.2 This practice maintains the specimen in a static, vertical position and does not involve movement except that resulting from the exposure.
SCOPE
1.1 This practice provides procedural guidelines for conducting arc testing on finished products intended for use as thermal protection by workers who may be exposed to electric arcs.
1.1.1 This practice is intended to provide procedural guidelines to improve consistency across testing groups. This practice is not intended to define the end points, parameters, or measures to be studied by the tester.
1.1.2 This practice is supplemental to Test Methods F1959/F1959M and F2178. Protective materials used to manufacture arc rated finished products shall be tested according to Test Method F1959/F1959M prior to being tested according to this practice, and face protective products shall be tested according to Test Method F2178 prior to being tested according to this practice. Test Methods F1959/F1959M and F2178 provide definitive numeric arc ratings for materials intended for use in finished products worn by workers exposed to electric arcs.
1.1.2.1 Discussion—Face protective products such as face shields and hoods are tested as finished products using Test Method F2178. These items may be subsequently tested using this practice in order to determine the performance of the interface area between the face protective product and the arc flash PPE worn on the torso.
1.1.3 The test specimens used in this practice shall be in the form of arc-rated finished products. These arc-rated finished products may include, but are not limited to, single layer garments, multi-layer garments or ensembles, cooling vests, gloves, chaps, rainwear, balaclavas, faceshields, and hood assemblies with hood shield windows. Non-arc rated finished products shall not be used except that flammable under-layers may be included when part of a flame resistant system or for detecting heat transmission level through the finished product and flammable finished products may in some cases be appropriate for incident reenactment.
1.1.4 The arc rated finished product specimens are new products as sold or products which have been used for the intended purpose for a designated time period.
1.1.5 Fabrics, fabric layered systems, sewing thread, findings and closures used in arc rated finished products tested under this practice shall meet the requirements of Specification F1506.
1.1.6 Rainwear materials, findings and closures tested under this practice shall meet the requirements of Specification F1891.
1.2 This practice shall be used to measure and describe the response characteristics or design integrity of arc-rated materials, products, or assemblies in the form of finished products...
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Designation: F2621 − 12
Standard Practice for
Determining Response Characteristics and Design Integrity
1
of Arc Rated Finished Products in an Electric Arc Exposure
This standard is issued under the fixed designation F2621; 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 1.1.4 The arc rated finished product specimens are new
products as sold or products which have been used for the
1.1 This practice provides procedural guidelines for con-
intended purpose for a designated time period.
ducting arc testing on finished products intended for use as
1.1.5 Fabrics, fabric layered systems, sewing thread, find-
thermal protection by workers who may be exposed to electric
ings and closures used in arc rated finished products tested
arcs.
under this practice shall meet the requirements of Specification
1.1.1 This practice is intended to provide procedural guide-
F1506.
lines to improve consistency across testing groups. This
1.1.6 Rainwear materials, findings and closures tested under
practice is not intended to define the end points, parameters, or
this practice shall meet the requirements of Specification
measures to be studied by the tester.
F1891.
1.1.2 This practice is supplemental to Test Methods F1959/
1.2 This practice shall be used to measure and describe the
F1959M and F2178. Protective materials used to manufacture
response characteristics or design integrity of arc-rated
arc rated finished products shall be tested according to Test
materials, products, or assemblies in the form of finished
Method F1959/F1959M prior to being tested according to this
products when exposed to radiant and convective energy
practice, and face protective products shall be tested according
generated by an electric arc under controlled laboratory con-
to Test Method F2178 prior to being tested according to this
ditions.
practice. Test Methods F1959/F1959M and F2178 provide
definitive numeric arc ratings for materials intended for use in
1.3 This practice can be used to determine the integrity of
finished products worn by workers exposed to electric arcs.
closures and seams, the protective performance of arc-rated
1.1.2.1 Discussion—Face protective products such as face
products in areas where garment overlap occurs or where
shields and hoods are tested as finished products using Test
heraldry is used, and response characteristics such as after-
Method F2178. These items may be subsequently tested using
flame time, melting, dripping, deformation, shrinkage, electric
this practice in order to determine the performance of the arc ignition, or other damage, or combination thereof, of
interface area between the face protective product and the arc
fabrics, systems of fabrics, flammable undergarments when
flash PPE worn on the torso. included as part of a system, sewing thread, findings and
1.1.3 The test specimens used in this practice shall be in the closures.
form of arc-rated finished products. These arc-rated finished
1.4 This practice can be used to identify the effectiveness of
products may include, but are not limited to, single layer
finished product specimens in attenuating heat, sound or
garments, multi-layer garments or ensembles, cooling vests,
pressure waves, or combination thereof.
gloves, chaps, rainwear, balaclavas, faceshields, and hood
1.5 This practice can be used for incident reenactment,
assemblies with hood shield windows. Non-arc rated finished
training demonstrations and material/design comparisons.
products shall not be used except that flammable under-layers
may be included when part of a flame resistant system or for 1.6 The values stated in either SI units or in other units shall
detecting heat transmission level through the finished product be regarded separately as standard. The values stated in each
and flammable finished products may in some cases be system may not be exact equivalents; therefore, each system
appropriate for incident reenactment. must be used independently of the other, without combining
values in any way.
1.7 This standard shall not be used to describe or appraise
1
the fire hazard or fire risk of materials, products, or assemblies
This practice is under the jurisdiction of ASTM Committee F18 on Electrical
Protective Equipment for Workers and is the direct responsibility of Subcommittee
under actual fire conditions. However, results of this test may
F18.65 on Wearing Apparel.
be used as elements of a fire assessment, which takes into
Current edition approved Oct. 1, 2012. Published November 2012. Originally
account all of the factors, which are pertinent to an assessment
approved in 2006. Last prev
...
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: F2621 − 06 F2621 − 12
Standard Practice for
Determining Response Characteristics and Design Integrity
1
of Arc Rated Finished Products in an Electric Arc Exposure
This standard is issued under the fixed designation F2621; 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 provides procedural guidelines for conducting arc testing on finished products intended for use as thermal
protection by workers who may be exposed to electric arcs.
1.1.1 This practice is intended to provide procedural guidelines to improve consistency across testing groups. This practice is
not intended to define the end points, parameters, or measures to be studied by the tester.
1.1.2 This practice is supplemental to Test Methods F1959/F1959M and F2178. Protective materials used to manufacture arc
rated finished products shall be tested according to Test Method F1959/F1959M prior to being tested according to this practice,
and face protective products shall be tested according to Test Method F2178 prior to being tested according to this practice. Test
Methods F1959/F1959M and F2178 provide definitive numeric arc ratings for materials intended for use in finished products worn
by workers exposed to electric arcs.
1.1.2.1 Discussion—Face protective products such as face shields and hoods are tested as finished products using Test Method
F2178. These items may be subsequently tested using this practice in order to determine the performance of the interface area
between the face protective product and the arc flash PPE worn on the torso.
1.1.3 The test specimens used in this practice shall be in the form of arc-rated finished products. These arc-rated finished
products may include, but are not limited to, single layer garments, multi-layer garments or ensembles, cooling vests, gloves,
chaps, rainwear, balaclavas, faceshields, and hood assemblies with hood shield windows. Non-arc rated finished products shall not
be used except that flammable under-layers may be included when part of a flame resistant system or for detecting heat
transmission level through the finished product and flammable finished products may in some cases be appropriate for incident
reenactment.
1.1.4 The arc rated finished product specimens are new products as sold or products which have been used for the intended
purpose for a designated time period.
1.1.5 Fabrics, fabric layered systems, sewing thread, findings and closures used in arc rated finished products tested under this
practice shall meet the requirements of Specification F1506.
1.1.6 Rainwear materials, findings and closures tested under this practice shall meet the requirements of Specification F1891.
1.2 This practice shall be used to measure and describe the response characteristics or design integrity of arc-rated materials,
products, or assemblies in the form of finished products when exposed to radiant and convective energy generated by an electric
arc under controlled laboratory conditions.
1.3 This practice can be used to determine the integrity of closures and seams, the protective performance of arc-rated products
in areas where garment overlap occurs or where heraldry is used, and response characteristics such as afterflame time, melting,
dripping, deformation, shrinkage, electric arc ignition, or other damage, or combination thereof, of fabrics, systems of fabrics,
flammable undergarments when included as part of a system, sewing thread, findings and closures.
1.4 This practice can be used to identify the effectiveness of finished product specimens in attenuating heat, sound or pressure
waves, or combination thereof.
1.5 This practice can be used for incident reenactment, training demonstrations and material/design comparisons.
1.6 The values stated in either SI units or in other units shall be regarded separately as standard. The values stated in each system
may not be exact equivalents; therefore, each system must be used independently of the other, without combining values in any
way.
1
This practice is under the jurisdiction of ASTM Committee F18 on Electrical Protective Equipment for Workers and is the direct responsibility of Subcommittee F18.65
on Wearing Apparel.
Current edition approved Nov. 15, 2006Oct. 1, 2012. Published December 2006November 2012. Originally approved in 2006. Last previous e
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