This standard stipulates the general requirements for cleaner production. This standard divides cleaner production indicators into five categories, namely production process and equipment requirements, resource and energy utilization indicators, pollutant generation indicators (before terminal treatment), waste recycling indicators and environmental management Require. This standard applies to nickel beneficiation (nickel beneficiation in this standard refers to the entire process of nickel ore from crushing operation - grinding and flotation operation - beneficiation operation - tailings disposal) enterprise clean production audit and judgment of clean production potential and opportunities. As well as cleaner production performance evaluation and cleaner production performance announcement system.