ASTM D189 PDF

More D Scope 1. This test method is generally applicable to relatively nonvolatile petroleum products which partially decompose on distillation at atmospheric pressure. Petroleum products containing ash-forming constituents as determined by Test Method D or IP Method 4 will have an erroneously high carbon residue, depending upon the amount of ash formed Note 2 and Note 4. Note —The term carbon residue is used throughout this test method to designate the carbonaceous residue formed after evaporation and pyrolysis of a petroleum product.

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Full Description 1. This test method is generally applicable to relatively nonvolatile petroleum products which partially decompose on distillation at atmospheric pressure. Petroleum products containing ash-forming constituents as determined by Test Method D or IP Method 4 will have an erroneously high carbon residue, depending upon the amount of ash formed Note 2 and Note 4.

The residue is not composed entirely of carbon, but is a coke which can be further changed by pyrolysis. The term carbon residue is continued in this test method only in deference to its wide common usage. Approximate correlations have been derived see Fig. The presence of alkyl nitrate in the fuel can be detected by Test Method D No other units of measurement are included in this standard. Mercury, or its vapor, may be hazardous to health and corrosive to materials. Caution should be taken when handling mercury and mercury containing products.

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.

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More D Similarly, provided alkyl nitrates are absent or if present, provided the test is performed on the base fuel without additive the carbon residue of diesel fuel correlates approximately with combustion chamber deposits. For example, an ash-forming detergent additive may increase the carbon residue value of an oil yet will generally reduce its tendency to form deposits. Scope 1. This test method is generally applicable to relatively nonvolatile petroleum products which partially decompose on distillation at atmospheric pressure. Petroleum products containing ash-forming constituents as determined by Test Method D or IP Method 4 will have an erroneously high carbon residue, depending upon the amount of ash formed Note 2 and Note 4.

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