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How is bitumen emulsion defined in technical specifications for procurement and quality control purposes?
In procurement specs, bitumen emulsion is defined as a dispersion of bitumen droplets in water stabilized by emulsifiers, with defined limits on binder residue, viscosity, stability, and performance tests relevant to the application. Specifications typically include requirements for storage stability, sieve content, pH, particle charge for cationic grades, and breaking behavior. They also define sampling methods, acceptance testing frequency, and allowed tolerances. For buyers, the key is aligning spec clauses with the intended end use so passing the spec translates into predictable field behavior.
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