What are the routine testing items for diesel fuel?

[Nick]

Conventional testing items for automotive gasoline and diesel fuel include: density, distillation range, copper strip corrosion, mercaptan sulfur, vapor pressure, oxidation stability, benzene content, oxygen content, sulfur content, water and mechanical impurities, actual gum, carbon residue, octane number, cetane number, etc. There are also special items such as diesel lubricity, polycyclic aromatic hydrocarbons testing, and quinizarin content testing in "red oil". Additional information: 1. Petroleum product testing scope: includes analysis and testing of automotive gasoline, automotive diesel, naphtha, solvent oil, methanol gasoline, biodiesel, aviation kerosene, fuel oil, lubricating oil, grease, paraffin, asphalt, petroleum coke products, and crude oil evaluation. 2. Petrochemical product testing scope includes: petroleum benzene, petroleum toluene, para (ortho, meta) xylene, mixed aromatics, methyl tert-butyl ether, methanol, ethanol, isopropanol, butanol, ethylene glycol, diethylene glycol, acetone, butanone, ethyl acetate, isopropyl acetate, methyl acetate, vinyl acetate, acrylic acid, acrylate, acetonitrile, acrylonitrile, etc. Conventional testing items include: purity analysis, impurity analysis, distillation range, density, acidity, color, and metal element analysis.