BS ISO 8178-5 pdf free download

BS ISO 8178-5 2015 pdf free download.Reciprocating internal combustion engines — Exhaust emission measurement Part 5: Test fuels.
This part of ISO 8178 specifies fuels whose use is recommended for performing the exhaust emission test cycles given in ISO 8178-4. It is applicable to reciprocating internal combustion engines for mobile, transportable and stationary installations excluding engines for vehicles primarily designed for road use. This part of ISO 8178 may be applied to engines used, e.g. earth-moving machines and generating sets, and for other applications. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 4264, Petroleum products — Calculation of cetane index of middle-distillate fuels by the four- variable equation ISO 8178-1:2006, Reciprocating internal combustion engines — Exhaust emission measurement — Part 1: Test-bed measurement of gaseous and particulate exhaust emissions ISO 8216-1, Petroleum products — Fuels (class F) classification — Part 1: Categories of marine fuels ISO 8217, Petroleum products — Fuels (class F) — Specifications of marine fuels 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. NOTE Also see any applicable definitions contained in the standards listed in the tables in Annex B.
3.1 carbon residue residue remaining after controlled thermal decomposition of a product under a restricted supply of oxygen (air) Note 1 to entry: The historical methods of Conradson and Ramsbottom have largely been replaced by the carbon residue (micro) method. [SOURCE: ISO 1998-2:1998, 2.50.001]
3.2 cetane index number, calculated to represent the approximate cetane number of a product from its density and distillation characteristics Note 1 to entry: The formula used for calculation is reproduced from statistical analysis of a very large representative sample of world-wide diesel fuels, on which cetane number and distillation data are known, and thus is subject to change at 5 to10 year intervals. The current formula is given in ISO 4264. It is not applicable to fuels containing an ignition-improving additive. [SOURCE: ISO 1998-2:1998, 2.30.111]
3.3 cetane number number on a conventional scale, indicating the ignition quality of a diesel fuel under standardized conditions Note 1 to entry: It is expressed as the percentage by volume of hexadecane (cetane) in a reference mixture having the same ignition delay as the fuel for analysis. The higher the cetane number, the shorter the delay. [SOURCE: ISO 1998-2:1998, 2.30.110]
3.4 crude oil naturally occurring form of petroleum, mainly occurring in a porous underground formation such as sandstone [SOURCE: ISO 1998-1:1998, 1.05.005] Note 1 to entry: Hydrocarbon mixture, generally in a liquid state, which may also include compounds of sulfur, nitrogen, oxygen, metals and other elements.
3.5 diesel fuel gas-oil that has been specially formulated for use in medium and high-speed diesel engines, mostly used in the transportation market Note 1 to entry: It is often referred to as “automotive diesel fuel”. [SOURCE: ISO 1998-1:1998, 1.20.131]
3.6 diesel index number which characterizes the ignition performance of diesel fuel and residual oils, calculated from the density and the aniline point Note 1 to entry: No longer widely used for distillate fuels due to inaccuracy of this method, but applicable to some blended distillate residual fuel oils. See also 3.2, cetane index.
3.7 liquefied petroleum gas LPG mixture of light hydrocarbons, consisting predominantly of propane, propene, butanes and butenes, that may be stored and handled in the liquid phase under moderate conditions of pressure and at ambient temperature [SOURCE: ISO 1998-1:1998, 1.15.080].BS ISO 8178-5 pdf download.