What factor must be considered when determining the order of loading dissimilar products through the same piping system?

When determining the order of loading dissimilar products through the same piping system, the most critical factor to consider is the potential for contamination of the cargo. This involves assessing whether the characteristics of one cargo can adversely affect another. Loading incompatible products in succession can lead to cross-contamination, which might compromise the integrity and quality of the cargo.

Contamination can occur if residues from one product remain in the system when a different product is loaded. This not only affects cargo quality but can also lead to safety hazards and regulatory violations if the products are not compatible. By prioritizing the prevention of contamination, tankers ensure that each product is delivered in a state that meets safety and quality standards.

While temperature control, pumping speed, and cargo compatibility are important considerations in loading operations, they do not directly address the immediate concern of preventing contamination in the context of using the same piping system for different products.