ASTM D6413/D6413M-22

Standard Test Method for Flame Resistance of Textiles (Vertical Test)

SIGNIFICANCE AND USE
5.1 This test method determines the response of textiles to a standard ignition source, deriving measurement values for afterflame time, afterglow time, and char length.  
5.2 The vertical flame resistance, as determined by this test method, only relates to a specified flame exposure and application time.  
5.3 This test method maintains the specimen in a static, draft-free, vertical position and does not involve movement except that resulting from the exposure.  
5.4 Test Method D6413 has been adopted from Federal Test Standard No. 191A method 5903.1, which has been used for many years in acceptance testing. The between-laboratory precision of this test method has not been established. Refer to Section 14 for single-laboratory precision.  
5.4.1 If there are differences or practical significance between reported test results for two laboratories (or more), comparative tests should be performed to determine if there is a statistical bias between them, using competent statistical assistance. As a minimum, the test samples used should be as homogeneous as possible, that are drawn from the material from which the disparate test results are obtained, and that are assigned randomly in equal numbers to each laboratory for testing. Other materials with established test values may be used for this purpose. The test results from the two laboratories should be compared using a statistical test for unpaired data, at a probability level chosen prior to the testing series. If a bias is found, either its cause must be found and corrected, or future test results must be adjusted in consideration on the known bias.
SCOPE
1.1 This test method is used to measure the vertical flame resistance of textiles.  
1.1.1 As a part of the measure of flame resistance, afterflame and afterglow characteristics are evaluated.  
1.2 This standard is used to measure and describe the response of materials, products, or assemblies to heat and flame under controlled conditions, but does not by itself incorporate all factors required for fire hazard or fire risk assessment of the materials, products, or assemblies under actual fire conditions.  
1.3 Fire testing is inherently hazardous. Adequate safeguards for personnel and property shall be employed in conducting these tests.  
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.  
1.5 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.  
1.6 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: 14-Aug-2022
• ICS: 13.220.40 - Ignitability and burning behaviour of materials and products
• ICS: 59.080.30 - Textile fabrics
• Technical Committee: D13 - Textiles
• Drafting Committee: D13.52 - Flammability

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: D6413/D6413M − 22
Standard Test Method for
1
Flame Resistance of Textiles (Vertical Test)
This standard is issued under the fixed designation D6413/D6413M; 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 D1776 Practice for Conditioning and Testing Textiles
D3776/D3776M Test Methods for Mass Per Unit Area
1.1 This test method is used to measure the vertical flame
(Weight) of Fabric
resistance of textiles.
D4391 Terminology Relating to The Burning Behavior of
1.1.1 As a part of the measure of flame resistance, after-
Textiles
flame and afterglow characteristics are evaluated.
E176 Terminology of Fire Standards
1.2 This standard is used to measure and describe the
3
2.2 ISO Standard
responseofmaterials,products,orassembliestoheatandflame
ISO 13943 Fire safety
under controlled conditions, but does not by itself incorporate
all factors required for fire hazard or fire risk assessment of the
3. Terminology
materials, products, or assemblies under actual fire conditions.
3.1 char length—in measuring flame resistance of textiles,
1.3 Fire testing is inherently hazardous. Adequate safe-
the distance from the fabric edge, which is directly exposed to
guards for personnel and property shall be employed in
the flame to the furthest point of visible fabric damage after a
conducting these tests.
specified tearing force has been applied.
1.4 The values stated in either SI units or inch-pound units
3.2 The following terms are relevant to this standard:
are to be regarded separately as standard. The values stated in
afterflame, after-flame time, afterglow time, flame application
each system may not be exact equivalents; therefore, each
time, melting.
system shall be used independently of the other. Combining
3.3 Fortermsrelatedtotheburningbehavioroftextiles,see
values from the two systems may result in non-conformance
Terminology D4391.
with the standard.
3.4 For terminology related to fire issues other than burning
1.5 This standard does not purport to address all of the
behavior of textiles, see Terminology E176 and ISO 13943. In
safety concerns, if any, associated with its use. It is the
case of conflict, the terminology in E176 will prevail.
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
3.5 For other terms related to textiles, see Terminology
mine the applicability of regulatory limitations prior to use.
D123.
1.6 This international standard was developed in accor-
4. Summary of Test Method
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
4.1 A specimen is positioned vertically above a controlled
Development of International Standards, Guides and Recom-
flame and exposed for a specified period of time. The flame
mendations issued by the World Trade Organization Technical
then is removed, and afterflame time and afterglow time are
Barriers to Trade (TBT) Committee.
measured.
4.2 Char length is measured under a specified force.
2. Referenced Documents
2
4.3 Any evidence of melting or dripping is noted.
2.1 ASTM Standards:
D123 Terminology Relating to Textiles
5. Significance and Use
1 5.1 This test method determines the response of textiles to a
This test method is under the jurisdiction ofASTM Committee D13 on Textiles
and is the direct responsibility of Subcommittee D13.52 on Flammability. standard ignition source, deriving measurement values for
Current edition approved Aug. 15, 2022. Published November 2022. Originally
afterflame time, afterglow time, and char length.
approved in 1999. Last previous edition approved in 2015 as D6413/D6413M – 15.
DOI: 10.1520/D6413_D6413M-22.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Available from International Organization for Standardization (ISO), ISO
Standards volume information, refer to the standard’s Document Summary page on Central Secretariat, Chemin de Blandonnet 8, CP 401, 1214 Vernier, Geneva,
the ASTM website. Switzerland, https://www.iso.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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D6413/D6413M − 22
5.2 The vertical flame resistance, as determined by this test assistance. As a minimum, the test samples used should be as
...

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: D6413/D6413M − 15 D6413/D6413M − 22
Standard Test Method for
1
Flame Resistance of Textiles (Vertical Test)
This standard is issued under the fixed designation D6413/D6413M; 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 measure the vertical flame resistance of textiles.
1.1.1 As a part of the measure of flame resistance, afterflame and afterglow characteristics are evaluated.
1.2 This standard shall be is used to measure and describe the response of materials, products, or assemblies to heat and flame
under controlled laboratory conditions and shall not be used to describe or appraise theconditions, but does not by itself incorporate
all factors required for fire hazard or fire risk assessment of the materials, products, or assemblies under actual fire conditions.
1.3 Fire testing is inherently hazardous. Adequate safeguards for personnel and property shall be employed in conducting these
tests.
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the
two systems may result in non-conformance with the standard.
1.5 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.6 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D123 Terminology Relating to Textiles
D1776 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
E176 Terminology of Fire Standards
1
This test method is under the jurisdiction of ASTM Committee D13 on Textiles and is the direct responsibility of Subcommittee D13.52 on Flammability.
Current edition approved June 1, 2015Aug. 15, 2022. Published July 2015November 2022. Originally approved in 1999. Last previous edition approved in 20132015 as
D6413/D6413M – 13b.D6413/D6413M – 15. DOI: 10.1520/D6413_D6413M-15.10.1520/D6413_D6413M-22.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D6413/D6413M − 22
3
2.2 ISO Standard
ISO 13943 Fire safety
3. Terminology
3.1 char length—in measuring flame resistance of textiles, the distance from the fabric edge, which is directly exposed to the flame
to the furthest point of visible fabric damage after a specified tearing force has been applied.
3.2 The following terms are relevant to this standard: afterflame, after-flame time, afterglow time, flame application time, melting.
3.3 For terms relatingrelated to the burning behavior of textiles, see Terminology D4391.
3.1.1 The following terms are relevant to this standard.
3.1.1.1 afterflame, n—persistent flaming of a material after the ignition source has been removed.
3.1.1.2 after-flame time, n—the length of time for which a material continues to flame after the ignition source has been removed.
3.1.1.3 afterglow time, n—the time afterglow continues after the removal of the ignition source and the cessation of flaming.
3.1.1.4 char length, n—in measuring flame resistance of textiles, the distance from the fabric edge, which is directly exposed to
the flame to the furthest point of visible fabric damage after a specified tearing force has been applied.
3.1.1.5 flame application time, n—the time interval for which the ignition flame is applied to a
...