Residues: Ash Determination • Asphaltenes Extraction • Conradson Carbon Residues • Fluorescent Indicator Adsorption - FIA • Lead, Acid and Salt Content • Ramsbottom Carbon Residue of Petroleum Products • Smoke Point • Sulfonation Number • Unsulfonated Residue
ASTM D482 - IP 4 - ISO 6245 - Ash from Petroleum Products.
This test method covers the determination of ash in the range 0.001- 0.180 mass %, from distillate and residual fuels, gas turbine fuels, crude oils, lubricating oils, waxes, and other petroleum products, in which any ash-forming materials present are normally considered to be undesirable impurities or contaminants. The test method is limited to petroleum products which are free from added ash-forming additives, including certain phosphorus compounds.
ASTM D874 - IP 163 - ISO 3987 - Sulfated Ash from Lubricating Oils and Additives.
This test method covers the determination of the sulfated ash from unused lubricating oils containing additives and from additive concentrates used in compounding. These additives usually contain one or more of the following metals: barium, calcium, magnesium, zinc, potassium, sodium, and tin. The elements sulfur, phosphorus, and chlorine can also be present in combined form. Application of this test method to sulfated ash levels below 0.02 mass% is restricted to oils containing ashless additives. The lower limit of the method is 0.005 mass% sulfated ash.
ASTM D4422 - Ash in Analysis of Petroleum Coke.
This test method covers the determination of the ash content of petroleum coke.
Ash Determination - ASTM D482 D874 D4422
Linetronic Technologies SA
Via Onorio Longhi 2 • 6864 Arzo • Mendrisio • Switzerland
tel. +41 91 630 07 03 • fax +41 91 630 07 19