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GB/T 23835.10-2009 Lithium perchlorate anhydrous - Part 10: Determination of iron content - 英文版 |
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GB/T 23834.6-2009 Chemical analysis method for stannous sulfate - Part 6: Determination of iron content - 1,10-phenanthroline spectrophotometry - 英文版 |
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GB/T 23834.5-2009 Chemical analysis method for stannous sulfate - Part 5: Determination of arsenic content - Silver diethyldithiocarbamate spectrophotometry - 英文版 |
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GB/T 23834.4-2009 Chemical analysis method for stannous sulfate - Part 4: Determination of lead and copper content - Flame atomic absorption spectrometry - 英文版 |
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GB/T 23834.3-2009 Chemical analysis method for stannous sulfate - Part 3: Determination of alkali metals sulfate and alkaline-earth metals sulfate - Gravimetric method - 英文版 |
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GB/T 23834.2-2009 Chemical analysis method for stannous sulfate - Part 2: Determination of insoluble substance in hydrochloric acid - Gravimetric method - 英文版 |
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GB/T 23834.1-2009 Chemical analysis method for stannous sulfate - Part 1: Determination of stannous sulfate content - Volumetric method of potassium dichromate - 英文版 |
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GB/T 13255.8-2009 Test methods of caprolactam for industrial use - Part 8: Determination of cyclohexanone oxime content - 英文版 |
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GB/T 13255.7-2009 Test methods of caprolactam for industrial use - Part 7: Determination of iron content - 英文版 |
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GB/T 13255.6-2009 Test methods of caprolactam for industrial use - Part 6: Determination of acidity or alkalinity - 英文版 |
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GB/T 13255.5-2009 Test methods of caprolactam for industrial use - Part 5: Determination of absorbance at a wavelength of 290nm - 英文版 |
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GB/T 13255.4-2009 Test methods of caprolactam for industrial use - Part 4: Determination of volatile bases content - Titrimetric method after distillation - 英文版 |
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GB/T 13255.3-2009 Test methods of caprolactam for industrial use - Part 3: Determination of permanganate absorption number - Spectrometric method - 英文版 |
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GB/T 13255.2-2009 Test methods of caprolactam for industrial use - Part 2: Determination of crystallizing point - 英文版 |
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GB/T 13255.1-2009 Test methods of caprolactam for industrial use - Part 1: Determination of colourity of 50% aqueous caprolactam solution - Spectrometric method - 英文版 |
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GB/T 15249.5-2009 Methods for chemical analysis of crude gold - Part 5: Determination of mercury content - Cold atomic absorption spectrometry - 英文版 |
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GB/T 15249.4-2009 Methods for chemical analysis of crude gold - Part 4: Determination of lead content - EDTA titrimetric method - 英文版 |
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GB/T 15249.3-2009 Methods for chemical analysis of crude gold - Part 3: Determination of copper content - Iodometric method - 英文版 |
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GB/T 15249.2-2009 Methods for chemical analysis of crude gold - Part 2: Determination of silver content - Fire assay gravimetric and EDTA titrimetric methods - 英文版 |
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GB/T 15249.1-2009 Methods for chemical analysis of crude gold - Part 1: Determination of gold content - Fire assay gravimetric method - 英文版 |
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GB/T 6343-2009 Cellular plastics and rubbers - Determination of apparent density - 英文版 |
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GB/T 531.2-2009 Rubber, vulcanized or thermoplastic - Determination of indentation hardness - Part 2: IRHD pocket meter method - 英文版 |
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GB/T 23652-2009 Plastics - PVC resins - Determination of compacted apparent bulk density - 英文版 |
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GB/T 23595.6-2009 Test methods of rare earth yellow phosphor for white LED lamps - Part 6: Determination of conductivity - 英文版 |
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GB/T 23595.5-2009 Test methods of rare earth yellow phosphor for white LED lamps - Part 5: Determination of pH value - 英文版 |
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GB/T 23595.4-2009 Test methods of rare earth yellow phosphor for white LED lamps - Part 4: Determination of thermostability - 英文版 |
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GB/T 23595.3-2009 Test methods of rare earth yellow phosphor for white LED lamps - Part 3: Determination of chromaticity coordinates - 英文版 |
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GB/T 23595.2-2009 Test methods of rare earth yellow phosphor for white LED lamps - Part 2: Determination of relative brightness - 英文版 |
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GB/T 23595.1-2009 Test methods of rare earth yellow phosphor for white LED lamps - Part 1: Determination of spectrum property - 英文版 |
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GB/T 23594.2-2009 Chemical analysis methods of rare earth contents in samarium-europium-gadolinium concentrates - Part 2: Determination of fifteen rare earth oxide relative contents - Inductively coupled plasma emission spectrometry - 英文版 |
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