ASTM D6668-01(2016)

Standard Test Method for Discrimination Between Flammability Ratings of F&#x2009;=&#x2009;0 <brk />and F&#x2009;=&#x2009;1

SIGNIFICANCE AND USE
5.1 A material which does not exhibit any evidence of burning as defined herein under the conditions of the test procedure may be classified as Flammability Degree of Hazard Zero material (F=0) provided other properties of the material are not such as to require a higher degree of classification.
SCOPE
1.1 This test method covers a means for the discrimination between solid and liquid materials which will not burn in air when exposed to a temperature of 1500 °F (815.5 °C) for a period of 5 min and those which will ignite and burn under the same conditions.  
1.2 This test method may be applied to any substance which is a solid or liquid at ambient temperature and pressure.  
1.3 The purpose of this test method is to provide a means for the classification of the flammability hazard of materials of hazard degrees (F=0) and (F =1) or both, in accordance with the definitions of degrees of flammability hazard as defined by NFPA 704 (par. 3.2.1).  
1.4 This test method should be used subject to the limitations that no single fire hazard property such as flash point, ignition temperature, or the performance under the conditions of the present method shall be used to describe or appraise the fire hazard or fire risk of a material, product, assembly or system under actual fire conditions. Fire hazard properties measured under controlled laboratory conditions may, nevertheless, be employed to describe properly the response of materials, products, assemblies or systems under said controlled conditions. Properties measured under controlled laboratory conditions may be used as elements of hazard or risk assessment only when such assessment takes into account all of the factors that are pertinent to the evolution of the fire hazard of a given situation.  
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 is used to predict or provide a quantitative measure of the fire hazard from a specified set of fire conditions involving specific materials, products, or assemblies. This assessment does not necessarily predict the hazard of actual fires which involve conditions other than those assumed in the analysis.  
1.7 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.

General Information

• Status: Historical
• Publication Date: 31-Dec-2015
• ICS: 13.220.50 - Fire-resistance of building materials and elements
• Technical Committee: D02 - Petroleum Products, Liquid Fuels, and Lubricants
• Drafting Committee: D02.L0.07 - Engineering Sciences of High Performance Fluids and Solids (Formally D02.1100)

Standards Content (Sample)

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: D6668 − 01 (Reapproved 2016)
Standard Test Method for
Discrimination Between Flammability Ratings of F = 0
1
and F = 1
This standard is issued under the fixed designation D6668; 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 involving specific materials, products, or assemblies. This
assessment does not necessarily predict the hazard of actual
1.1 This test method covers a means for the discrimination
fires which involve conditions other than those assumed in the
between solid and liquid materials which will not burn in air
analysis.
when exposed to a temperature of 1500 °F (815.5 °C) for a
1.7 This standard does not purport to address all of the
period of 5 min and those which will ignite and burn under the
safety concerns, if any, associated with its use. It is the
same conditions.
responsibility of the user of this standard to establish appro-
1.2 This test method may be applied to any substance which
priate safety and health practices and determine the applica-
is a solid or liquid at ambient temperature and pressure.
bility of regulatory limitations prior to use.
1.3 Thepurposeofthistestmethodistoprovideameansfor
the classification of the flammability hazard of materials of
2. Referenced Documents
hazard degrees (F=0) and (F =1) or both, in accordance with 2
2.1 ASTM Standards:
the definitions of degrees of flammability hazard as defined by
D235 Specification for Mineral Spirits (Petroleum Spirits)
NFPA 704 (par. 3.2.1).
(Hydrocarbon Dry Cleaning Solvent)
3
1.4 This test method should be used subject to the limita-
2.2 NFPA Standards:
tions that no single fire hazard property such as flash point,
NFPA 704 Identification of the Hazards of Materials for
ignition temperature, or the performance under the conditions
Emergency Response
of the present method shall be used to describe or appraise the
fire hazard or fire risk of a material, product, assembly or 3. Terminology
system under actual fire conditions. Fire hazard properties
3.1 Definitions of Terms Specific to This Standard:
measured under controlled laboratory conditions may,
3.1.1 burning, n—for the purposes of this test method,
nevertheless, be employed to describe properly the response of
burning shall be defined to include the presence of any visible
materials, products, assemblies or systems under said con-
flame,sparksorglowingemberswhenthesampleisexposedto
trolled conditions. Properties measured under controlled labo-
1500 °F (815.5 °C) for 5 min under the conditions of the test
ratory conditions may be used as elements of hazard or risk
method. Charring withouit visible evidence of flame, sparks, or
assessmentonlywhensuchassessmenttakesintoaccountallof
glowing embers shall not be considered to constitute burning.
the factors that are pertinent to the evolution of the fire hazard
3.1.2 flammability hazard degree one (F=1) , n—materials
of a given situation.
that will burn in air when exposed to a temperature of 1500 °F
1.5 The values stated in inch-pound units are to be regarded
(815.5 °C)for5 minundertheconditionsofthistestmethodor
as standard. The values given in parentheses are mathematical
which, by reason of their flash point, fire point, autoignition
conversions to SI units that are provided for information only
temperature, or sustained combustibility, would be rated as
and are not considered standard.
Hazard Degree One regardless of their performance in this test
method.
1.6 Thisstandardisusedtopredictorprovideaquantitative
measure of the fire hazard from a specified set of fire conditions
3.1.3 flammability hazard degree zero (F=0) , n—materials
that will not burn in air when exposed to a temperature of
1
This test method is under the jurisdiction of ASTM Committee D02 on
2
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Subcommittee D02.L0.07 on Engineering Sciences of High Performance Fluids and contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Solids (Formally D02.1100). Standards volume information, refer to the standard’s Document Summary page on
Current edition approved Jan. 1, 2016. Published February 2016. Originally the ASTM website.
3
approved in 2001. Last previous edition approved in 2010 as D6668 – 01 (2010). Available from National Fire Protection Association (NFPA), 1 Batterymarch
DOI: 10.1520/D6668-01R16. Park, Quincy, MA 02169-7471, http://www.nfpa.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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...

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: D6668 − 01 (Reapproved 2010) D6668 − 01 (Reapproved 2016)
Standard Test Method for
Discrimination Between Flammability Ratings of F = 0
1
and F = 1
This standard is issued under the fixed designation D6668; 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 covers a means for the discrimination between solid and liquid materials which will not burn in air when
exposed to a temperature of 1500°F (815.5°C)1500 °F (815.5 °C) for a period of 5 min 5 min and those which will ignite and burn
under the same conditions.
1.2 This test method may be applied to any substance which is a solid or liquid at ambient temperature and pressure.
1.3 The purpose of this test method is to provide a means for the classification of the flammability hazard of materials of hazard
degrees (F=0) and (F =1) or both, in accordance with the definitions of degrees of flammability hazard as defined by NFPA 704
(par. 3.2.1).
1.4 This test method should be used subject to the limitations that no single fire hazard property such as flash point, ignition
temperature, or the performance under the conditions of the present method shall be used to describe or appraise the fire hazard
or fire risk of a material, product, assembly or system under actual fire conditions. Fire hazard properties measured under controlled
laboratory conditions may, nevertheless, be employed to describe properly the response of materials, products, assemblies or
systems under said controlled conditions. Properties measured under controlled laboratory conditions may be used as elements of
hazard or risk assessment only when such assessment takes into account all of the factors that are pertinent to the evolution of the
fire hazard of a given situation.
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 is used to predict or provide a quantitative measure of the fire hazard from a specified set of fire conditions
involving specific materials, products, or assemblies. This assessment does not necessarily predict the hazard of actual fires which
involve conditions other than those assumed in the analysis.
1.7 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. Referenced Documents
2
2.1 ASTM Standards:
D235 Specification for Mineral Spirits (Petroleum Spirits) (Hydrocarbon Dry Cleaning Solvent)
3
2.2 NFPA Standards:
NFPA 704 Identification of the Hazards of Materials for Emergency Response
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
1
This test method is under the jurisdiction of ASTM Committee D02 on Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of Subcommittee
D02.L0.07 on Engineering Sciences of High Performance Fluids and Solids (Formally D02.1100).
Current edition approved May 1, 2010Jan. 1, 2016. Published May 2010February 2016. Originally approved in 2001. Last previous edition approved in 20062010 as
D6668 – 01 (2010). (2006). DOI: 10.1520/D6668-01R10.10.1520/D6668-01R16.
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.
3
Available from National Fire Protection Association (NFPA), 1 Batterymarch Park, Quincy, MA 02169-7471, http://www.nfpa.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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D6668 − 01 (2016)
3.1.1 burning, n—for the purposes of this test method, burning shall be defined to include the presence of any visible flame,
sparks or glowing embers when the sample is exposed to 1500°F (815.5°C) for 5 min 1500 °F (815.5 °C) for 5 min under the
conditions of the test method. Charring withouit visible evidence of flame, sparks, or glowing embers shall not be considered to
...