组合使用关键词、标准类型、状态与 ICS 分类，快速定位所需国家标准。
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GB/T 12690.5-2003
Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides--Determination of Al、Cr、Mn、Fe、Co、Ni、Cu、Zn、Pb content by inductively coupled plasma atomic emission spectrographic method--Determination of Co、Mn、Pb、N
GB/T 12690.4-2003
Chemical analysis methods for non-rare earth impurities ofrare earth metals and their oxides--Determination of oxygen and nitrogen content--Impulse-infrared and impulse-thermal conductance absorption method
GB/T 12690.13-2003
Chemical analysis methods for non-rareearth impurities of rare earth metals and their oxides--Determination of molybdenum and tungsten content--Induct-ively coupled plasma atomic emission spectrographic method and inductively coupled plasma mass spectrum
GB/T 12690.12-2003
Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides--Determination of thorium content--Arsenazo III spectrophotometric method and inductively coupled plasma mass spectrum method
GB/T 12690.11-2003
Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides--Determination of magnesium content--Flame atomic absorptionspectrometric method
GB/T 12690.10-2003
Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides--Determination of phosphorus content by molybdenum blue spectrophotometric method
GB/T 5153-2003
Designation and composition of wrought magnesium and magnesium alloys
GB/T 4437.2-2003
Aluminium and aluminium alloy extruded tubes--Part 2: Seam tubes
GB/T 14634.4-2002
Test methods of rare earth three-band phosphors for fluorescent lamps--Determination of particle size distribution by electric sensing zone technique
GB/T 8643-2002
Lubricated metal-powder mixes--Determination of lubricant content--Modified Soxhlet extraction method
GB/T 18762-2002
Filler precious metal and their alloy brazing materials
GB/T 8930-2001
Crude gold ingots
GB/T 18307-2001
Methods for chemical analysis of crude silver
GB/T 12690.29-2000
Rare earth metals and their oxide--Determination of cerium oxide content--Fluorescent spectrophoto-metric method
GB/T 18034-2000
Specification for the platinum rhodium thermocouple thin wires used in mini-thermocouples
GB/T 18035-2000
Precious metals and its alloys designation system
GB/T 17793-1999
Wrought copper and copper alloy plate，sheet and strip for general purposes--Dimensions and tolerances
GB/T 3194-1998
Wrought aluminium and aluminium alloysheets and strips--Tolerances on forms and dimensions
GB/T 17373-1998
Sampling methods for chemical analysis of crudegold
GB 17100-1997
Casting Co-Cr-Mo alloy for surgical implants