the national standardization management committee issued a public notice that the standard for urea aqueous solution (aus 32), the diesel engine nitrogen oxide reducer, will be take effect from the first day of july. different from agro-urea, vehicle-use urea is required to contain only a trace of biuret, ammonia, and water, with no aldehyde and anti-caking agents, no sulfur, sulphides, chlorides, nitrates and other compounds.
mr. zhang kaiyuan, the sales manager for the vehicle-use urea manufacturer, yitong environmental protection technology (putian) co., ltd. said that under the prescribed transportation and storage conditions of not lower than 25℃, vehicle-use urea can be sold to areas within a radius of around 500,000 meters. the requirement is to ensure the proper use of vehicle-use urea solution in different climate zones. however, the vehicle-use urea market also depends on the enforcement of the standard. now that the detailed regulations are yet to be formulated, the industry is following closely.