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GB/T 3654.5-1983 Methods for chemical analysis of ferroniobium--The molybdenum blue photometric method for the determination of the phosphorus content - 英文版 |
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GB/T 3654.4-1983 Methods for chemical analysis of ferroniobium--The combustion gravimetric method for the determination of carbon content - 英文版 |
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GB/T 3654.3-1983 Methods for chemical analysis of ferroniobium--The gravimetric method for the determination of silicon content - 英文版 |
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GB/T 3654.1-1983 Methods for chemical analysis of ferroniobium--The paper chromatograph-gravimetric method for the determination of niobium and tantalum content - 英文版 |
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GB/T 3654.10-1983 Methods for chemical analysis of ferroniobium--The EDTA volumetric method for the determination of aluminium content - 英文版 |
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GB/T 3653.5-1983 Methods for chemical analysis of ferroboron--The chromatographic separation-barium sulfate gravimetric method for the determination of sulfur content - 英文版 |
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GB/T 3653.2-1983 Methods for chemical analysis of ferroboron--The gasometric method for the determination of carbon content - 英文版 |
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GB/T 3143-1982 Colour determination method of liquid chemicals (Hazen unit--platinum-cobalt scale) - 英文版 |
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GB/T 384-1981 Determination of calorific value of petroleum products - 英文版 |
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GB/T 513-1977 Determination of mechanical impuritiesin lubricating greases (acid decomposition method) - 英文版 |
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