GB - Chinese national standards

Terminology of food canning machinery

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Manganese Ores - Determination of active oxygen content - Potassium dichromate titrimetric method

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Dysprosium metal

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Methods for chemical analysis of precious metal alloys—Part 1: Determination of gold content

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Test method of precious metal alloys - Determination of nickel content for gold alloys - Complexometric backing titration using EDTA

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Test method of precious metal alloys - Determination of gadolinium and beryllium contents for gold alloys - Inductively coupled plasma atomic emission spectrometry

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Test method of precious metal alloys - Determination of nickel contents for silver alloys - Hydrogen peroxide spectrophotometry

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Test method of precious metal alloys - Determination of tin, cerium and lanthanium contents for silver alloys - Inductively coupled clasma atomic emission spectrometry

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Test method of precious metal alloys - Determination of aluminium and nickel contents for silver alloys - Inductively coupled plasma atomic emission spectrometry

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Test method of precious metal alloys - Determination of nickel, zinc and manganese contents for gold, silver and palladium alloys - Inductively coupled plasma atomic emission spectrometry

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