ASTM D8211-21

Standard Test Method for Hot Surface Ignition Temperature of Gases on Flat Surface

SIGNIFICANCE AND USE
5.1 The autoignition temperature (AIT) of a gas mixture is the minimum temperature at which a gas mixture spontaneously ignites without an external ignition source. AIT is typically determined at atmospheric pressure, using small test vessels open to the atmosphere where gas is quickly injected into the test vessel and heated for a pre-determined time observing ignition or non-ignition (Test Method E659). AIT is often not directly applicable to real world conditions. Therefore, there is need for a test that determines if a gas or liquefied gas ignites or does not ignite when released onto a hot surface in a more unconstrained environment.
SCOPE
1.1 This test method covers a means for the discrimination between gases, which will ignite or not ignite when impinged on a hot surface when that surface is heated to 800 °C (1472 °F) or greater for a period of 2 min in a non-confined environment.  
1.2 This test method may be applied to any non-pyrophoric substance that is a gas or liquefied gas, particularly GHS category 1B gases, at ambient temperature and pressure.  
1.3 This test method should be used subject to the limitations that no single fire hazard property such as flash point, auto-ignition temperature (AIT), 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 assessments takes into account all of the factors that are pertinent to the evolution of the fire hazard of a given situation.  
1.4 This standard is used to provide a quantitative measure of a gas’s or liquefied gas’s realistic surface ignition temperature in a non-quiescent environment.  
1.5 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section 9.  
1.7 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: 30-Apr-2021
• ICS: 13.220.40 - Ignitability and burning behaviour of materials and products
• 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)

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: D8211 − 21
Standard Test Method for
1
Hot Surface Ignition Temperature of Gases on Flat Surface
This standard is issued under the fixed designation D8211; 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* 1.7 This international standard was developed in accor-
dance with internationally recognized principles on standard-
1.1 This test method covers a means for the discrimination
ization established in the Decision on Principles for the
between gases, which will ignite or not ignite when impinged
Development of International Standards, Guides and Recom-
on a hot surface when that surface is heated to 800 °C
mendations issued by the World Trade Organization Technical
(1472 °F) or greater for a period of 2 min in a non-confined
Barriers to Trade (TBT) Committee.
environment.
1.2 This test method may be applied to any non-pyrophoric 2. Referenced Documents
substance that is a gas or liquefied gas, particularly GHS
2
2.1 ASTM Standards:
category 1B gases, at ambient temperature and pressure.
D4175 Terminology Relating to Petroleum Products, Liquid
1.3 This test method should be used subject to the limita-
Fuels, and Lubricants
tions that no single fire hazard property such as flash point, E659 Test Method for Autoignition Temperature of Chemi-
auto-ignition temperature (AIT), or the performance under the
cals
conditions of the present method shall be used to describe or
3. Terminology
appraise the fire hazard or fire risk of a material, product,
assembly, or system under actual fire conditions. Fire hazard
3.1 Definitions:
properties measured under controlled laboratory conditions
3.1.1 For definitions of terms used in this method, refer to
may nevertheless be employed to describe properly the re-
Terminology D4175.
sponse of materials, products, assemblies, or systems under
3.2 Definitions of Terms Specific to This Standard:
said controlled conditions. Properties measured under con-
3.2.1 auto ignition temperature (AIT), n—the lowest tem-
trolled laboratory conditions may be used as elements of
perature at which a substance spontaneously ignites in normal
hazard or risk assessment only when such assessments takes
atmosphere without an external source of ignition.
into account all of the factors that are pertinent to the evolution
3.2.2 camera, n—capableofrecordingatleast30framesper
of the fire hazard of a given situation.
second.
1.4 This standard is used to provide a quantitative measure
3.2.3 chimney, n—a quartz cylinder tube with the following
of a gas’s or liquefied gas’s realistic surface ignition tempera-
dimensions: length: 229 mm 6 10 mm (9.02 in. 6 0.39 in.);
ture in a non-quiescent environment.
inner dimension: 70 mm 6 5 mm (2.76 in. 6 0.2 in.).
1.5 The values stated in SI units are to be regarded as
3.2.4 environmental chamber, n—a chamber capable of
standard. The values given in parentheses after SI units are
providing a draft-free environment during testing and able to
provided for information only and are not considered standard.
provide ventilation after testing is completed; the chamber
needs to be able to completely remove the test substance and
1.6 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the any potential substance decomposition products after testing
has completed.
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
3.2.5 gap height, n—the height of the chimney above the
mine the applicability of regulatory limitations prior to use.
insulation and planchet shall be 4 mm.
For specific hazard statements, see Section 9.
3.2.6 heating element, n—a unit that is capable of heating a
surface in contact with the planchet up to temperatures of at
1
least 800 °C (1472 °F) up to 1000 °C (1832 °F).
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
2
Solids (Formally D02.1100). For referenced ASTM standards, visit the ASTM website, www.astm.org, or
CurrenteditionapprovedMay1,2021.PublishedJuly2021.Originallyapproved contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
in 2018. Last previous edition approved in 2018 as D8211 – 18. DOI: 10.1520/ Standards volume information, refer to the standard’s
...

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: D8211 − 18 D8211 − 21
Standard Test Method for
1
Hot Surface Ignition Temperature of Gases on Flat Surface
This standard is issued under the fixed designation D8211; 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 Scope*
1.1 This test method covers a means for the discrimination between gases, which will ignite or not ignite when impinged on a hot
surface when that surface is heated to 800 °C 6 5 °C (1472 °F)(1472 °F) or greater for a period of 2 min in a non-confined
environment.
1.2 This test method may be applied to any non-pyrophoric substance that is a gas or liquefied gas gas, particularly GHS category
1B gases, at ambient temperature and pressure.
1.3 This test method should be used subject to the limitations that no single fire hazard property such as flash point, auto-ignition
temperature (AIT), 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 assessments takes into account all of the factors that are pertinent to the
evolution of the fire hazard of a given situation.
1.4 This standard is used to provide a quantitative measure of a gas’s or liquefied gas’s realistic surface ignition temperature in
a non-quiescent environment.
1.5 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units 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, health, and environmental practices and determine the applicability of
regulatory limitations prior to use. For specific hazard statements, see Section 9.
1.7 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:
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 July 1, 2018May 1, 2021. Published August 2018July 2021. Originally approved in 2018. Last previous edition approved in 2018 as D8211 – 18.
DOI: 10.1520/D8211-18.10.1520/D8211-21.
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.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D8211 − 21
D4175 Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
E659 Test Method for Autoignition Temperature of Chemicals
3. Terminology
3.1 Definitions:
3.1.1 For definitions of terms used in this method, refer to Terminology D4175.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 auto ignition temperature (AIT), n—the lowest temperature at which a substance spontaneously ignites in normal atmosphere
without an external source of ignition.
3.2.2 camera, n—capable of recording at least 30 frames per second.
3.2.3 chimney, n—a quartz cylinder tube with the following dimensions: length: 229 mm 6 10 mm (9.02 in. 6 0.39 in.); inner
dimension: 70 mm 6 5 mm (2.76 in. 6 0.2 in.).
3.2.4 environmental chamber, n—a chamber capable of providing a draft-free en
...