ASTM D-975 (Standard Specification for Diesel Fuel Oils)

ASTM D-975 is a standard guideline that defines the quality and specifications for diesel fuel used in vehicles and machinery. It sets the acceptable levels for properties like viscosity, density, sulfur content, and cleanliness to ensure the fuel performs reliably and meets environmental standards. This helps manufacturers, suppliers, and users ensure that diesel fuels are safe, efficient, and compatible with engines, reducing wear and emissions. Essentially, ASTM D-975 provides a consistent framework for producing and testing diesel fuel to maintain quality and support industry standards.