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International Standard Category: Cement. Gypsum. Lime. Mortar

GB/T 12957-1991    Test method for activity of industrial waste slag used as addition to cement
用作水泥混合材料的工业废渣活性试验方法 ;
Category No.:91.100.10 Valid Status:abolished
Issued Organization: Issued Date:1991-06-04
Implemented Date:1992-3-1 Abolished Date:2005-08-01
Superseded Standard.:GB/T 12957-2005 Test method for actibity of industrial waste slag used as addition to cement
Superseded Date:2005-8-1
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