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  • BENZENE/TOLUENE IN GASOLINE BY GAS CHROMATOGRAPHY: ASTM D3606 BENZENE/TOLUENE IN GASOLINE BY GAS CHROMATOGRAPHY: ASTM D3606(Equivalent Test IP 425)EXPLANATIONBenzene is considered as a toxic material and the knowledge of its concentration can be an aid in evaluating the possible health hazards to persons handling and using the gasoline. This test method determines ...
  • BASE NUMBER BY POTENTIOMETRIC HCI TITRATION: ASTM D4739 BASE NUMBER BY POTENTIOMETRIC HCI TITRATION: ASTM D4739(Equivalent Test Methods: IP 417, ISO 6619, and JIS K 2501)EXPLANATIONTest Method D4739 was developed as an alternative for the base number portion of Test Method D664. Base numbers obtained by this test method may or may not be numerically the same ...
  • BASE NUMBER POTENTIOMETRIC PERCHLORIC ACID TITRATION: ASTM D2896 BASE NUMBER POTENTIOMETRIC PERCHLORIC ACID TITRATION: ASTM D2896(Equivalent Test Methods: IP 276, ISO 3771, and JIS K 2501)For many materials the results obtained by this test method will be similar to those obtained by Test Method D664. With certain compounds such as strongly over-based oil additives ...
  • BASE NUMBER IN LUBRICANTS BY COLOR INDICATOR TITRATION: ASTM D5984 BASE NUMBER IN LUBRICANTS BY COLOR INDICATOR TITRATION: ASTM D5984EXPLANATIONThis is a semi-quantitative field test method used on new and used lubricating oils. These samples can contain base constituents present as additives or as degradation products formed during service. A decrease in the measured ...
  • BASE NUMBER BY COLOR INDICATOR TITRATION: ASTM D974 BASE NUMBER BY COLOR INDICATOR TITRATION: ASTM D974(Equivalent Test Methods: IP 139, ISO 6618, DIN 51558T1, JIS K 2501, and AFNOR T60-112)EXPLANATIONSee discussion under Acid Number for Test Method D974. Although this test has been used for base number of petroleum products for many decades, it may not ...
  • BASE NUMBER BASE NUMBERGENERALNew and used petroleum products may contain basic constituents that are present as additives. The relative amounts of these materials can be determined by titrating with acids. The neutralization number expressed as base number, is a measure of this amount of basic substance in the ...
  • ASPHALTENES (HEPTANE INSOLUBLES) IN CRUDE PETROLEUM AND PRODUCTS: ASTM D6560 ASPHALTENES (HEPTANE INSOLUBLES) IN CRUDE PETROLEUM AND PRODUCTS: ASTM D6560EXPLANATIONAsphaltenes in crude oils may give problems during storage and handling if the suspension of asphaltene molecules is disturbed through excess stress or incompatibility. They are also the last molecules in a product ...
  • ASH SULFATED ASH FROM LUBRICATING OILS AND ADDITIVES: ASTM D874 ASH SULFATED ASH FROM LUBRICATING OILS AND ADDITIVES: ASTM D874(Equivalent Test Methods: IP 163, ISO 3987, DIN 51575, JIS K 2272, and AFNOR T60-143)EXPLANATIONSulfated ash is the residue remaining after the sample has been carbonized, and the residue subsequently treated with sulfuric acid and heated ...
  • ASH FROM PETROLEUM PRODUCTS: ASTM D482 ASH FROM PETROLEUM PRODUCTS: ASTM D482(Equivalent Test Methods: IP 4, ISO 6245, JIS K 2272, and AFNOR M07-045)EXPLANATIONAsh in a petroleum product can result from oil or water-soluble metallic compounds or from extraneous solids such as dirt and rust. This test method is not valid for petroleum products ...
  • ASH IN PETROLEUM COKE: ASTM D4422 ASH IN PETROLEUM COKE: ASTM D4422EXPLANATIONThe ash content is one of the properties used to evaluate petroleum coke and indicates the amount of undesirable residue present. Acceptable ash content varies with the intended use.Preparation and testing of the analysis sample must neither remove nor add ...