Standard Test Method for Determining the Arc Rating of Materials for Clothing

SIGNIFICANCE AND USE
5.1 This test method is intended for the determination of the arc rating of a material, or a combination of materials.  
5.1.1 Because of the variability of the arc exposure, different heat transmission values may be observed at individual sensors. Evaluate the results of each sensor in accordance with Section 12.  
5.2 This test method maintains the specimen in a static, vertical position and does not involve movement except that resulting from the exposure.  
5.3 This test method specifies a standard set of arc exposures performed under controlled laboratory conditions. Different exposure conditions have the potential to produce different results. In addition to the standard set of exposure conditions, other conditions representative of the expected hazard may be used and shall be documented in the reporting of the testing results.
SCOPE
1.1 This test method is used to determine the arc rating of materials intended for use as flame resistant clothing for workers exposed to electric arcs that would generate heat flux rates of approximately 2100 kW/m2 [50 cal/cm2s] using an open air arc.  
1.2 This test method will determine the arc rating of materials which meet the following requirements: less than 150 mm [6 in.] char length and less than 2 s afterflame when tested in accordance with Test Method D6413.  
1.2.1 It is not the intent of this test method to evaluate non flame-resistant materials.  
1.3 The materials used in this test method are in the form of flat specimens.  
1.4 This test method shall be used to measure and describe the properties of materials, products, or assemblies in response to convective and radiant energy generated by an electric arc under controlled laboratory conditions.  
1.5 The values stated in SI units shall be regarded as standard except as noted. Within the text, alternate units are shown in brackets. The values stated in each system may not be exact equivalents therefore alternate systems must be used independently of the other. Combining values from the systems described in the text may result in nonconformance with the method.  
1.6 This test method does not apply to electrical contact or electrical shock hazards.  
1.7 This standard shall not be used to describe or appraise the fire hazard or fire risk of materials, products, or assemblies under actual fire conditions. However, results of this test may be used as elements of a fire assessment which takes into account all of the factors which are pertinent to an assessment of the fire hazard of a particular end use.  
1.8 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. For specific precautions, see Section 7.  
1.9 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
Historical
Publication Date
31-Dec-2023
Current Stage
Ref Project

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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: F1959/F1959M − 24
Standard Test Method for
1
Determining the Arc Rating of Materials for Clothing
This standard is issued under the fixed designation F1959/F1959M; 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 responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
1.1 This test method is used to determine the arc rating of
mine the applicability of regulatory limitations prior to use.
materials intended for use as flame resistant clothing for
For specific precautions, see Section 7.
workers exposed to electric arcs that would generate heat flux
2 2 1.9 This international standard was developed in accor-
rates of approximately 2100 kW/m [50 cal/cm s] using an
dance with internationally recognized principles on standard-
open air arc.
ization established in the Decision on Principles for the
1.2 This test method will determine the arc rating of
Development of International Standards, Guides and Recom-
materials which meet the following requirements: less than
mendations issued by the World Trade Organization Technical
150 mm [6 in.] char length and less than 2 s afterflame when
Barriers to Trade (TBT) Committee.
tested in accordance with Test Method D6413.
1.2.1 It is not the intent of this test method to evaluate non 2. Referenced Documents
flame-resistant materials.
2
2.1 ASTM Standards:
1.3 The materials used in this test method are in the form of D123 Terminology Relating to Textiles
flat specimens.
D1776/D1776M Practice for Conditioning and Testing Tex-
tiles
1.4 This test method shall be used to measure and describe
D3776/D3776M Test Methods for Mass Per Unit Area
the properties of materials, products, or assemblies in response
(Weight) of Fabric
to convective and radiant energy generated by an electric arc
D4391 Terminology Relating to The Burning Behavior of
under controlled laboratory conditions.
Textiles
1.5 The values stated in SI units shall be regarded as
D6413 Test Method for Flame Resistance of Textiles (Ver-
standard except as noted. Within the text, alternate units are
tical Test)
shown in brackets. The values stated in each system may not be
E457 Test Method for Measuring Heat-Transfer Rate Using
exact equivalents therefore alternate systems must be used
a Thermal Capacitance (Slug) Calorimeter
independently of the other. Combining values from the systems
F1494 Terminology Relating to Protective Clothing
described in the text may result in nonconformance with the
F1506 Performance Specification for Flame Resistant and
method.
Electric Arc Rated Protective Clothing Worn by Workers
1.6 This test method does not apply to electrical contact or Exposed to Flames and Electric Arcs
3
electrical shock hazards.
2.2 ANSI/IEEE Standard:
Standard Dictionary of Electrical and Electronics Terms
1.7 This standard shall not be used to describe or appraise
4
2.3 AATCC Standard:
the fire hazard or fire risk of materials, products, or assemblies
AATCC Laboratory Procedure 1-2021 Home Laundering:
under actual fire conditions. However, results of this test may
Machine Washing
be used as elements of a fire assessment which takes into
account all of the factors which are pertinent to an assessment
3. Terminology
of the fire hazard of a particular end use.
3.1 Definitions:
1.8 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
1
This test method is under the jurisdiction of ASTM Committee F18 on Standards volume information, refer to the standard’s Document Summary page on
Electrical Protective Equipment for Workers and is the direct responsibility of the ASTM website.
3
Subcommittee F18.65 on Wearing Apparel. Available from Institute of Electrical and Electronics Engineers, Inc. (IEEE),
Current edition approved Jan. 1, 2024. Published February 2024. Originally 445 Hoes Ln., P.O. Box 1331, Piscataway, NJ 08854-1331.
4
approved in 1997. Last previous edition approved in 2023 as F1959/F1959M – 23a. Technical Manual of the American Association of Textile Chemists and
DOI: 10.1520/F1959_F1959M-24. Colorists.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 -----------
...

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: F1959/F1959M − 23a F1959/F1959M − 24
Standard Test Method for
1
Determining the Arc Rating of Materials for Clothing
This standard is issued under the fixed designation F1959/F1959M; 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 test method is used to determine the arc rating of materials intended for use as flame resistant clothing for workers
2 2
exposed to electric arcs that would generate heat flux rates of approximately 2100 kW/m [50 cal/cm s] using an open air arc.
1.2 This test method will determine the arc rating of materials which meet the following requirements: less than 150 mm [6 in.]
char length and less than 2 s afterflame when tested in accordance with Test Method D6413.
1.2.1 It is not the intent of this test method to evaluate non flame-resistant materials.
1.3 The materials used in this test method are in the form of flat specimens.
1.4 This test method shall be used to measure and describe the properties of materials, products, or assemblies in response to
convective and radiant energy generated by an electric arc under controlled laboratory conditions.
1.5 The values stated in SI units shall be regarded as standard except as noted. Within the text, alternate units are shown in
brackets. The values stated in each system may not be exact equivalents therefore alternate systems must be used independently
of the other. Combining values from the systems described in the text may result in nonconformance with the method.
1.6 This test method does not apply to electrical contact or electrical shock hazards.
1.7 This standard shall not be used to describe or appraise the fire hazard or fire risk of materials, products, or assemblies under
actual fire conditions. However, results of this test may be used as elements of a fire assessment which takes into account all of
the factors which are pertinent to an assessment of the fire hazard of a particular end use.
1.8 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. For specific precautions, see Section 7.
1.9 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.
1
This test method 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 Dec. 1, 2023Jan. 1, 2024. Published January 2024February 2024. Originally approved in 1997. Last previous edition approved in 2023 as
F1959/F1959M – 23.F1959/F1959M – 23a. DOI: 10.1520/F1959_F1959M-23A.10.1520/F1959_F1959M-24.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
F1959/F1959M − 24
2. Referenced Documents
2
2.1 ASTM Standards:
D123 Terminology Relating to Textiles
D1776D1776/D1776M Practice for Conditioning and Testing Textiles
D3776/D3776M Test Methods for Mass Per Unit Area (Weight) of Fabric
D4391 Terminology Relating to The Burning Behavior of Textiles
D6413 Test Method for Flame Resistance of Textiles (Vertical Test)
E457 Test Method for Measuring Heat-Transfer Rate Using a Thermal Capacitance (Slug) Calorimeter
F1494 Terminology Relating to Protective Clothing
F1506 Performance Specification for Flame Resistant and Electric Arc Rated Protective Clothing Worn by Workers Exposed to
Flames and Electric Arcs
3
2.2 ANSI/IEEE Standard:
Standard Dictionary of Electrical and Electronics Terms
4
2.3 AATCC Standard:
AATCC Method 135-2001Laboratory Procedure 1-2021 Dimensional Changes in Automatic Home Laundering of Woven and
Knit FabricsHome Laundering: Machine Washing
3. Terminology
3.1 Definitions:
3.1.1 ablation, n—in electrical arc testing, a physical response evidenced by significant erosion or the formation of one or more
large holes in a
...

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: F1959/F1959M − 24
Standard Test Method for
1
Determining the Arc Rating of Materials for Clothing
This standard is issued under the fixed designation F1959/F1959M; 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 responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
1.1 This test method is used to determine the arc rating of
mine the applicability of regulatory limitations prior to use.
materials intended for use as flame resistant clothing for
For specific precautions, see Section 7.
workers exposed to electric arcs that would generate heat flux
2 2 1.9 This international standard was developed in accor-
rates of approximately 2100 kW/m [50 cal/cm s] using an
dance with internationally recognized principles on standard-
open air arc.
ization established in the Decision on Principles for the
1.2 This test method will determine the arc rating of
Development of International Standards, Guides and Recom-
materials which meet the following requirements: less than
mendations issued by the World Trade Organization Technical
150 mm [6 in.] char length and less than 2 s afterflame when
Barriers to Trade (TBT) Committee.
tested in accordance with Test Method D6413.
1.2.1 It is not the intent of this test method to evaluate non
2. Referenced Documents
flame-resistant materials. 2
2.1 ASTM Standards:
1.3 The materials used in this test method are in the form of
D123 Terminology Relating to Textiles
flat specimens. D1776/D1776M Practice for Conditioning and Testing Tex-
tiles
1.4 This test method shall be used to measure and describe
D3776/D3776M Test Methods for Mass Per Unit Area
the properties of materials, products, or assemblies in response
(Weight) of Fabric
to convective and radiant energy generated by an electric arc
D4391 Terminology Relating to The Burning Behavior of
under controlled laboratory conditions.
Textiles
1.5 The values stated in SI units shall be regarded as
D6413 Test Method for Flame Resistance of Textiles (Ver-
standard except as noted. Within the text, alternate units are
tical Test)
shown in brackets. The values stated in each system may not be
E457 Test Method for Measuring Heat-Transfer Rate Using
exact equivalents therefore alternate systems must be used
a Thermal Capacitance (Slug) Calorimeter
independently of the other. Combining values from the systems
F1494 Terminology Relating to Protective Clothing
described in the text may result in nonconformance with the
F1506 Performance Specification for Flame Resistant and
method.
Electric Arc Rated Protective Clothing Worn by Workers
1.6 This test method does not apply to electrical contact or Exposed to Flames and Electric Arcs
3
electrical shock hazards.
2.2 ANSI/IEEE Standard:
Standard Dictionary of Electrical and Electronics Terms
1.7 This standard shall not be used to describe or appraise
4
2.3 AATCC Standard:
the fire hazard or fire risk of materials, products, or assemblies
AATCC Laboratory Procedure 1-2021 Home Laundering:
under actual fire conditions. However, results of this test may
Machine Washing
be used as elements of a fire assessment which takes into
account all of the factors which are pertinent to an assessment
3. Terminology
of the fire hazard of a particular end use.
3.1 Definitions:
1.8 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
1
This test method is under the jurisdiction of ASTM Committee F18 on Standards volume information, refer to the standard’s Document Summary page on
Electrical Protective Equipment for Workers and is the direct responsibility of the ASTM website.
3
Subcommittee F18.65 on Wearing Apparel. Available from Institute of Electrical and Electronics Engineers, Inc. (IEEE),
Current edition approved Jan. 1, 2024. Published February 2024. Originally 445 Hoes Ln., P.O. Box 1331, Piscataway, NJ 08854-1331.
4
approved in 1997. Last previous edition approved in 2023 as F1959/F1959M – 23a. Technical Manual of the American Association of Textile Chemists and
DOI: 10.1520/F1959_F1959M-24. Colorists.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
F1959/F1959M − 24
3.1.1 ablation, n—in electrical arc testing, a physical re- through the tested specimen is predicted to cause th
...

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