Quantitative and qualitative inspection of crude oil and petrochemical products is a critical phase in the supply chain of these materials, significantly impacting their quality and safety. Quantitative inspection focuses on accurately measuring the volume and quantity of crude oil, petroleum products, and petrochemicals using weight and volumetric methods to determine precise inventory levels.

On the other hand, qualitative inspection involves analyzing the physical and chemical properties of these materials, including tests to determine the product type and grade, API gravity, contaminant analysis, sulfur content measurement, and evaluations of viscosity and flashpoint properties. These comprehensive assessments help ensure compliance with international standards, identify potential issues in production and transportation processes, maintain high product quality, and mitigate environmental and safety risks.