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	GB/T 5121.7-2008 Methods for chemical analysis of copper and copper alloys - Part 7:Determination of arsenic content - 英文版
	GB/T 5121.6-2008 Methods for chemical analysis of copper and copper alloys - Part 6:Determination of bismuth content - 英文版
	GB/T 5121.5-2008 Methods for chemical analysis of copper and copper alloys - Part 5:Determination of nickel content - 英文版
	GB/T 5121.4-2008 Methods for chemical analysis of copper and copper alloys - Part 4:Determination of carbon and sulfur content - 英文版
	GB/T 5121.3-2008 Methods for chemical analysis of copper and copper alloys - Part 3:Determination of lead content - 英文版
	GB/T 5121.27-2008 Methods for chemical analysis of copper and copper alloys - Part 27:The inductively coupled plasma atomic emission spectromertric method - 英文版
	GB/T 5121.26-2008 Methods for chemical analysis of copper and copper alloys - Part 26:Determination of mercury content - 英文版
	GB/T 5121.25-2008 Methods for chemical analysis of copper and copper alloys - Part 25: Determination of boron content - 英文版
	GB/T 5121.24-2008 Methods for chemical analysis of copper and copper alloys - Part 24:Determination of selenium and tellurium content - 英文版
	GB/T 5121.23-2008 Methods for chemical analysis of copper and copper alloys - Part 23:Determination of silicon content - 英文版
	GB/T 5121.22-2008 Methods for chemical analysis of copper and copper alloys - Part 22:Determination of cadmium content - 英文版
	GB/T 5121.2-2008 Methods for chemical analysis of copper and copper alloys - Part 2:Determination of phosphorus content - 英文版
	GB/T 5121.21-2008 Methods for chemical analysis of copper and copper alloys - Part 21:Determination of titanaum content - 英文版
	GB/T 5121.20-2008 Methods for chemical analysis of copper and copper alloys - Part 20:Determination of zirconium content - 英文版
	GB/T 5121.19-2008 Methods for chemical analysis of copper and copper alloys - Part 19:Determination of silver content - 英文版
	GB/T 5121.18-2008 Methods for chemical analysis of copper and copper alloys - Part 18:Determination of magnesium content - 英文版
	GB/T 5121.17-2008 Methods for chemical analysis of copper and copper alloys Part 17:Determination of beryllium content - 英文版
	GB/T 5121.16-2008 Methods for chemical analysis of copper and copper alloys - Part 16:Determination of chromium content - 英文版
	GB/T 5121.15-2008 Methods for chemical analysis of copper and copper alloys - Part 15:Determination of cobalt content - 英文版
	GB/T 5121.14-2008 Methods for chemical analysis of copper and copper alloys - Part 14：Determination of manganese content - 英文版
	GB/T 5121.13-2008 Methods for chemical analysis of copper and copper alloys - Part 13:Determination of aluminium content - 英文版
	GB/T 5121.12-2008 Methods for chemical analysis of copper and copper alloys - Part 12:Determination of antimony content - 英文版
	GB/T 5121.1-2008 Methods for chemical analysis of copper and copper alloys - Part 1:Determination of copper content - 英文版
	GB/T 5121.11-2008 Methods for chemical analysis of copper and copper alloys - Part 11:Determination of zinc content - 英文版
	GB/T 5121.10-2008 Methods for chemical analysis of copper and copper alloys - Part 10:Determination of tin content - 英文版
	GB/T 18882.2-2008 Chemical analysis methods for mixed rare earth oxide of ion-absorpted type RE ore - Determination of aluminum oxide content - 英文版
	GB/T 16475-2008 Temper designation system for wrought aluminium and aluminium alloy - 英文版
	GB/T 12966-2008 The method for determining aluminum alloys conductivity using eddy current - 英文版
	GB/Z 18219-2008 Information technology - Reference model of data management - 英文版
	GB/T 22034-2008 Information technology - Keyboard layout of the alphanumeric zone for Tibetan coded character set - 英文版

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