ICS91.100.60 CCSF02 21 辽宁省地方标准 DB21/T1642—2024 代替DB21/T1642-2008 镁质耐火原料及制品单位产品 能源消耗限额 Normofenergyconsumptionperunitproductofmagnesiumrefractoryrawmaterials andproducts 2024-02-29发布 2024-03-29实施 辽宁省市场监督管理局  发布 DB21/T1642—2024 I目次 前言..................................................................................II 1范围................................................................................1 2规范性引用文件......................................................................1 3术语和定义..........................................................................1 4能耗限额等级........................................................................1 5统计范围及计算方法..................................................................3 5.1统计范围........................................................................3 5.2常用能源的折算方法..............................................................3 5.3常用能源计量单位................................................................3 5.4镁质耐火原料及制品能耗计算方法..................................................3 5.5企业能耗计算....................................................................4 5.6其他............................................................................4 附录A（规范性）常用能源的折算系数...................................................5