Surface active agents. Preparation of water with known calcium and magnesium hardness Ingestion-build-232773 “binder course” and “surface course”

“binder course” and “surface course” are used throughout this standard in place of the traditional terms “roadbase”

in the water heaters to what they are fitted

1 on method for the determination of mean relative molecular mass of technical straight-chain sodium alkylbenzenesulfonates is useful for:

Cables that meet the requirements of BS EN 50525 satisfy the essential health and safety requirements of the Low Voltage Directive (2006/95/EC)

and describes sampling

Surface active agents. Preparation of water with known calcium and magnesium hardness Ingestion-build-232773 “binder course” and “surface course”1 Scope This European Standard specifies a method of preparing water of known calcium and magnesium hardness for use in testing surface active agents and products containing them.