How is bitumen emulsion defined for procurement contracts and technical compliance?

In contracts, definition should include emulsion type, grade designation, binder residue target and tolerance, setting behavior, and mandatory test methods with acceptance limits. It should specify sampling method, frequency, retest rules, and documentation requirements such as batch certificate and MSDS. It should also define storage and transport conditions, maximum delivery age, and handling requirements to prevent separation. For performance sensitive work, include compatibility testing with project aggregates, breaking time requirements, and application temperature limits so compliance reflects field behavior, not only lab numbers.