Methods for chemical analysis of ferromanganese and blast furnace ferromanganese--The perchloric acid dehydration-gravimetric method for the determination of silicon content GB/T 7730.2-1987

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Standard Insuued on: 1987-05

GB/T 7730.2-1987 Methods for chemical analysis of ferromanganese and blast furnace ferromanganese--The perchloric acid dehydration-gravimetric method for the determination of silicon content

锰铁及高炉锰铁化学分析方法高氯酸脱水重量法测定硅量

Category No.:	GB	Valid Status:	valid
Issued Organization:		Issued Date:	1987-05-12
Implemented Date:	2003-4-1	Abolished Date:
Superseded Standard.:	GB/T 7730.2-2002 Ferromanganese and blast furnace ferromanganese--Determination of silicon content--Gravimetric method after perchloric acid dehydration	Superseded Date:

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GB/T 7754-1987 GB/T 7730.2-1987 SY 5635-1993 SY/T 5635-1993 GB 7796-1987 GB 7727.1-1987 GB 7795-1987 GB 7805-1987 GB 7801-1987 GB 8020-1987 GB 7807-1987 GB 7798-1987 GB 7788-1987 GB 8023-1987 GB 7802-1987 GB 7806-1987 GB 7799-1987 GB 7794-1987 GB 7803-1987 GB/T 7717.3-1987

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