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GB/T 3653.3-1988 Methods for chemical analysis of ferroboron--The perchloric acid dehydration-gravimetric method for the determination of silicon content - 英文版 |
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GB/T 9801-1988 Air quality--Determination of carbon monoxide--Non-disperisive infrared spectrometry - 英文版 |
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GB/T 9171-1988 Engine oil--Determination of borderline pumping temperature - 英文版 |
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GB/T 8971-1988 Air quality--Determination of benzo(a) pyrene in flying bust--Acetylated paper chromatography fluorescence spectrophotometric method - 英文版 |
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GB/T 8325-1987 Determination of pH of aqueous dispersions of polymers and copolymers - 英文版 |
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GB/T 8018-1987 Gasoline--Determination of oxidation stability--Induction period method - 英文版 |
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GB/T 223.53-1987 Methods for chemical analysis of iron，steel and alloy--The flame atomic absorption spectrophotometric method for the determination of copper content - 英文版 |
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GB/T 7475-1987 Water quality--Determination of copper， zinc， lead and cadmium--Atomic absorption spectrometry - 英文版 |
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GB/T 7474-1987 Water quality--Determination of copper--Sodium diethyldithiocabamate spectrophotometric method - 英文版 |
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GB/T 7473-1987 Water quality--Determination of copper--2，9-dimethy-1，10-phenanthroline spectrophotometric method - 英文版 |
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GB/T 7469-1987 Water quality--Determination of the total mercury--Potassium permanganate-pootassium peralfate descomposed method--Dithizone spectrophotometric method - 英文版 |
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GB/T 6730.36-1986 Methods for chemical analysis of iron ores--The flame atomic absorption spectrophotometric method for the determination of copper content - 英文版 |
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GB/T 6525-1986 Sintered metal materials--Determinationof compression strength at room temperature - 英文版 |
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GB/T 5124.4-1985 Methods for chemical analysis of hardmetals--The photometric peroxide method for the determination of titanium content - 英文版 |
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GB/T 4702.10-1985 Methods for chemical analysis of chromium metal--The cupral spectrophotometric method for the determination of copper content - 英文版 |
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GB/T 4333.1-1984 Methods for chemical analysis of ferrosilicon--The perchloric acid dehydration-gravimetric method for the determination of silicon content - 英文版 |
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GB/T 3850-1983 Impermeable sintered metal materials and hardmetals--Determination of density - 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 505-1965 Determination of mercaptan-sulfur in engine fuels (ammonia-copper sulfate method) - 英文版 |
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