CurrentMandatory
GB 21257-2024
Norm of energy consumption per unit production of caustic soda, PVC, methane chloride
烧碱、聚氯乙烯树脂和甲烷氯化物单位产品能源消耗限额
Explanation
GB 21257-2024 is a current mandatory Chinese national standard for Norm of energy consumption per unit production of caustic soda, PVC, methane chloride. It appears in the Construction compliance cluster with a energy efficiency focus and has an implementation date of May 1, 2025.
Applicability depends on product scope, certification route, competent authority notices and transition rules. Verify against the official source before using this record in a compliance decision.
Applicability hints
- Type
- Management
- CCS
- F01
- ICS
- 27.010
- Competent department
- Standardization Administration of China
- Technical committee
- National Technical Committee on Energy Fundamentals and Management of Standardization Administration of China
Relationships
Replaces:GB 21257-2014, GB 30527-2014