GB/T 17418.1-2010 Methods for analysis of noble metals in geochemical samples—Part 1:General rules and regulations

GB/T 17418.2-2010 Methods for analysis of noble metals in geochemical samples—Part 2:Determination of platinum and rhodium content—Preconcentration by thiourea-catalytic polarographic method GB/T 17418.3-2010 Methods for analysis of noble metals in geochemical samples—Part 3:Determination of palladium content—Preconcentration by thiourea-graphite furnace atomic absorption spectrophotometric method GB/T 17418.4-2010 Methods for analysis of noble metals in geochemical samples—Part 4:Determination of iridium content—Preconcentration by thiourea-catalytic spectrophotometric method GB/T 17418.5-2010 Methods for analysis of noble metals in geochemical samples—Part 5:Determination of ruthenium and osmium content—Separationby distillation-catalytic spectrophotometric method GB/T 17418.6-2010 Methods for analysis of noble metals in geochemical samples—Part 6:Determination of platinum,palladium and gold content—Preconcentration by fire assay-emission spectrometry GB/T 17418.7-2010 Methods for analysis of noble metals in geochemical samples—Part 7:Determination of platinum group elements—By nickel sulfide fire assay-inductively coupled plasma mass spectrometry

GB/T 17418.1-1998 Methods for analysis of noble metals in geochemical samples—General rules and regulations

GB 3100-1993 SI units and recommendations for the use of their multiples and of certain other units GB/T 3101-1993 Quantities and units—General principles GB/T 3102.1-1993 Quantities and units—Space and time GB/T 3102.2-1993 Quantities and units—Periodic and related phenomena GB/T 3102.3-1993 Quantities and units—Mechanics GB/T 3102.4-1993 Quantities and units—Heat GB/T 3102.5-1993 Quantities and units—Electricity and magnetism GB/T 3102.6-1993 Quantities and units—Light and related electromagnetic radiations GB/T 3102.7-1993 Quantities and units—Acoustics GB/T 3102.8-1993 Quantities and units—Physical chemistry and molecular physics GB/T 3102.9-1993 Quantities and units—Atomic and nuclear physics GB/T 3102.10-1993 Quantities and units—Nuclear reactions and ionizing radiation GB/T 3102.11-1993 Mathematical signs and symbols for use in the physical sciences and technology GB/T 3102.12-1993 Characteristic numbers GB/T 3102.13-1993 Quantities and units—Solid state physics GB/T 6379-1986 Precision of test methods Determination of repeatability and reproducibility for a standard test method by interlaboratory tests GB/T 6379.1-2004 Accuracy(trueness and precision)of measurement methods and results—Part 1:General principles and definitions GB/T 6379.2-2004 Accuracy(trueness and precision)of measurement methods and results—Part 2:Basic method for the determination of repeatability and reproducibility of a standard measurement method GB/T 6379.3-2012 Accuracy(trueness and precision)of measurement methods and results—Part 3:Intermediate measures of the precision of a standard measurement method GB/T 6379.4-2006 Accuracy (trueness and precision) of measurement methods and results—Part 4:Basic methods for the determination of the trueness of a standard measurement method GB/T 6379.5-2006 Accuracy (trueness and precision) of measurement methods and results—Part 5:alternative methods for the determination of the precision of a standard measurement method GB/T 6379.6-2009 Accuracy(trueness and precision)of measurement methods and results—Part 6:Use in practice of accuracy values GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 6379.4-2025 Accuracy(trueness and precision)of measurement methods and results—Part 4:Basic methods for the determination of the trueness of a standard measurement method