GB - Chinese national standards

Black tea—Part 3:Souchong black tea

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Test methods for laser beam widths,divergence angle and transverse mode

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Accuracy of optical transfer functionOTFmeasurement

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D.C.magnetoelectric galvanometer

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The measurement of coating thickness for electro-deposited nickel coatings on magnetic and non-magnetic substracts

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Classification and code of disciplines

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Safety and hygiene code for working with lead

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Methods for chemical analysis of zirconium and zirconium alloys—Part 1Determination of tin content—Potassium iodate titration and phenylfluorone-polyethylene glycoloctyl phenyl ether spectrophotometry

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Methods for chemical analysis of zirconium and zirconium alloys—Part 10Determination of tungsten content—Thiocyanate spectrophotometry and inductively coupled plasma atomic emission spectrometry

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Methods for chemical analysis of zirconium and zirconium alloys—Part 11: Determination of molybdenum content—Thiocyanate spectrophotometry

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