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IS Number | |||
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IS 1448 : Part 21 : 1992 |
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Title :-Petroleum and its Products - Methods of Test - Part 21 : Flash Point (closed) by Pensky Martens Apparatus (Second Revision) | |||
Unit Price |
Status |
Amendment |
Reaffirmed |
Gr 5 |
Active |
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2003 |
Page Size |
No. of Pages |
Tech. Committee |
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A4 |
9 |
PCD 1 |
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UDC 665.61.7 : 543.873 | |||
1 Scope
1.1 This method covers determination of the flash point by Pensky Martens closed tester, of fuel oils, lubricating oils, suspensions of solids, liquids that tend to form a surface film under test conditions, and other liquids.
Note 1 - This method may be employed for the detection of contamination of lubricating oils by minor amounts of volatile material.
Note 2 - It has been established that liquids with a flash point under 37.8°C (1000F) are flammable as determined by this method for those liquids which have a viscosity of 5.8 cSt or more at 37.8°C (1000F) or 9.5 cSt or more at 25°C (77°F), or that contain suspended solids, or have a tendency to form a surface film while under test.
Note 3 - This flash point test method depends on definite rates of temperature increases to control the precision of the method. It is considered to be a non-equilibrium method. The rate of heating will not give the precision expected in all cases because of the low thermal conductivity of some materials.
1.2 Liquids which have viscosities less than 5.5 cSt at 400C (104°F), do not contain suspended solids or do not have a tendency to form a surface film while under test may be tested by Tag Closed Tester.
1.3 This standard should be used to measure and describe the properties of materials, products, or assemblies in response to heat and flame under controlled laboratory conditions and should 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 risk assessment which takes into account all of the factors which are pertinent to an assessment of the fire hazard of a particular end use.
1.4 This standard does not purport to address all of the safety problems 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.