ASTMD93VIP专享

Designation: D 93 – 02aD 4177 Practice for Automatic Sampling of Petroleum andPetroleum Products4E 1 Specification for ASTM Thermometers5E 300 Practice for Sampling Industrial Chemicals6E 502 Test Method for Selection and Use of ASTM Stan-dards for the Determination of Flash Point of Chemicals byClosed Cup Methods 72.2ISO Standards8Guide 34 Quality Systems Guidelines for the Production ofReference MaterialsGuide 35 Certification of Reference Material—General andStatistical Principles3. Terminology3.1 Definitions:3.1.1 dynamic, adj—in petroleum products—the conditionwhere the vapor above the test specimen and the test specimenare not in temperature equilibrium at the time that the ignitionsource is applied.3.1.1.1 Discussion—This is primarily caused by the heatingof the test specimen at the constant prescribed rate with thevapor temperature lagging behind the test specimen tempera-ture.3.1.2 equilibrium, n—in petroleum products—the conditionwhere the vapor above the test specimen and the test specimenare at the same temperature at the time the ignition source isapplied.3.1.2.1 Discussion—This condition may not be fullyachievedin practice,since the temperaturemay not be uniformthroughoutthe test specimen,and the test cover and shutter onthe apparatus can be cooler.3.1.3 flash point, n—in petroleum products, the lowesttemperature corrected to a barometric pressure of 101.3 kPa(760 mm Hg), at which application of an ignition source causesthe vapors of a specimen of the sample to ignite under specifiedconditions of test.3.1.3.1 Discussion—The test specimen is deemed to haveflashed when a flame appears and instantaneously propagatesitself over the entire surface of the test specimen.3.1.3.2 Discussion—When the ignition source is a...