To implement the State Council, the most stringent water management system, strengthen industrial water management, improve the efficiency of industrial water, in conjunction with the Ministry of Water Resources, the National Bureau of Statistics, the national water conservation office and other departments recently jointly issued the "key industrial sectors of water efficiency guidelines . "Coal ammonia, pyrite acid, sulfuric acid is listed therein.

It is understood that the "Guide" Select unit quantity of water advanced value, the average value of the limit value and accessibility, as measured by the level of water use efficiency and evaluation of enterprise core indicators.

"Guide" presents petrochemical industries unit quantity of water indicators, including ammonia advanced coal-value of 12 (m / t), limit value of 27; Sulfuric acid advanced value of 4.2, limit value of 4.5; sulfur advanced sulfuric acid value of 3.2, limit value 3.3.