ASTM D92-05
(Test Method)Standard Test Method for Flash and Fire Points by Cleveland Open Cup Tester
Standard Test Method for Flash and Fire Points by Cleveland Open Cup Tester
SCOPE
1.1 This test method describes the determination of the flash point and fire point of petroleum products by a manual Cleveland open cup apparatus or an automated Cleveland open cup apparatus.
Note 1—The precisions for fire point were not determined in the current interlaboratory program. Fire point is a parameter that is not commonly specified, although in some cases, knowledge of this flammability temperature may be desired.
1.2 This test method is applicable to all petroleum products with flash points above 79C (175F) and below 400C (752F) except fuel oils.
Note 2—This test method may occasionally be specified for the determination of the fire point of a fuel oil. For the determination of the flash points of fuel oils, use Test Method D 93. Test Method D 93 should also be used when it is desired to determine the possible presence of small, but significant, concentrations of lower flash point substances that may escape detection by Test Method D 92. Test Method D 1310 can be employed if the flash point is known to be below 79C (175F).
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.4 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. For specific warning statements, see 6.4, 7.1, 11.1.3, and 11.2.4.
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An American National Standard
Designation:D92–05 American Association State
Highway and Transportation Officials Standard
AASHTO No.: T48
DIN 51 376
Designation: 36/84 (89)
Standard Test Method for
1
Flash and Fire Points by Cleveland Open Cup Tester
ThisstandardisissuedunderthefixeddesignationD 92;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
INTRODUCTION
This flash point and fire point test method is a dynamic method and depends on definite rates of
temperature increases to control the precision of the test method. Its primary use is for viscous
materials having flash point of 79°C (175°F) and above. It is also used to determine fire point, which
is a temperature above the flash point, at which the test specimen will support combustion for a
minimum of 5 s. Do not confuse this test method with Test Method D 4206, which is a sustained
burning test, open cup type, at a specific temperature of 49°C (120°F).
Flash point values are a function of the apparatus design, the condition of the apparatus used, and
the operational procedure carried out. Flash point can therefore only be defined in terms of a standard
test method, and no general valid correlation can be guaranteed between results obtained by different
test methods, or with test apparatus different from that specified.
1. Scope* 1.3 The values stated in SI units are to be regarded as the
standard. The values given in parentheses are for information
1.1 Thistestmethoddescribesthedeterminationoftheflash
only.
point and fire point of petroleum products by a manual
1.4 This standard does not purport to address all of the
Cleveland open cup apparatus or an automated Cleveland open
safety concerns, if any, associated with its use. It is the
cup apparatus.
responsibility of the user of this standard to establish appro-
NOTE 1—The precisions for fire point were not determined in the
priate safety and health practices and determine the applica-
current interlaboratory program. Fire point is a parameter that is not
bility of regulatory limitations prior to use. For specific
commonly specified, although in some cases, knowledge of this flamma-
warning statements, see 6.4, 7.1, 11.1.3, and 11.2.4.
bility temperature may be desired.
1.2 This test method is applicable to all petroleum products
2. Referenced Documents
with flash points above 79°C (175°F) and below 400°C 2
2.1 ASTM Standards:
(752°F) except fuel oils.
D93 Test Methods for Flash Point by Pensky-Martens
Closed Cup Tester
NOTE 2—This test method may occasionally be specified for the
determination of the fire point of a fuel oil. For the determination of the D 140 Practice for Sampling Bituminous Materials
flash points of fuel oils, use Test MethodD93. Test MethodD93 should
D 1310 Test Method for Flash Point and Fire Points of
alsobeusedwhenitisdesiredtodeterminethepossiblepresenceofsmall,
Liquids by Tag Open-Cup Apparatus
but significant, concentrations of lower flash point substances that may
D 4057 Practice for Manual Sampling of Petroleum and
escape detection by Test Method D 92. Test Method D 1310 can be
Petroleum Products
employed if the flash point is known to be below 79°C (175°F).
D 4177 Practice for Automatic Sampling of Petroleum and
Petroleum Products
1
This test method is under the joint jurisdiction of ASTM Committee D02 on
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
D02.08 on Volatility. In the IP, this test method is under the jurisdiction of the
2
Standardization Committee. This test method was adopted as a joint ASTM-IP For referenced ASTM standards, visit the ASTM website, www.astm.org, or
standard in 1965. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
CurrenteditionapprovedJune1,2005.PublishedJuly2005.Originallyapproved Standards volume information, refer to the standard’s Document Summary page on
in 1921. Last previous edition approved in 2002 as D 92–02b. 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.
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D92–05
D 4206 Test Method for Sustained Burning of Liquid Mix- point,thetestiscontinueduntiltheapplicationofthetestflame
tures Using the Small Scale Open-Cup Apparatus causes the test specimen to ignite and sustain burning for a
E1 Specification forASTM Liquid-in-Glass Thermometers minimum of 5 s.
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E 300 Practice for Sampling Industrial Chemicals
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5. Sig
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