Teste de Proficiência Interlaboratorial: - Esquema Oils and Fuels OIL; - Amostra 06: Simulado de Serviço de Óleo do Motor; - Amostra fornecida: 1 x 250 mL amostra de simulado de serviço de óleo do motor + 1 x 50 mL amostra de óleo novo para FTIR por referência subtração; - Principais Analítos: Acid Number; Aluminum; Antimony; Boron; Barium; Cadmium; Calcium; Chromium; Copper; Iron; Potassium; Magnesium; Manganese; Molybdenum; Sodium; Nickel; Phosphorous; Lead; Silicon; Silver; Tin; Titanium; Vanadium; Zinc; Base Number; Flash Point; Sulfur Content; Viscosity, Kinematic @40°C; Viscosity, Kinematic @100°C; Water content; Fuel Dilution; Glycol; Insoluble; FTIR, Oxidation; FTIR, Nitration; FTIR, Sulfation; FTIR, Fuel Dilution; FTIR, Glycol; FTIR, Water; FTIR, Phosphate; Particle Count.