GB/T 17418.4-1998 Replaced National standards

GB/T 17418.4-1998 Methods for analysis of noble metals in geochemical samples—Determination of iridium content—Preconcentration by thiourea—Catalytic spectrophotometric method

Publish Date: 1998-06-17 Implement Date: 1999-01-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 17418.4-1998

Standard Type: National standards

Standard Status: Replaced

is_force_gb: no

CCS Name: Precious metal mine

ICS Name: \nMetal ores

Publish Date: 1998-06-17

Implement Date: 1999-01-01

Pages: 7 pages

Development Information

Word Count: 12 Thousand words Pages: 7 pages

Same series standard

GB/T 17418.1-1998 Methods for analysis of noble metals in geochemical samples—General rules and regulations GB/T 17418.2-1998 Methods for analysis of noble metals in geochemical samples—Determination of platinum and rhodium content-Preconcentration by thiourea-Catalytic polarographic method GB/T 17418.3-1998 Methods for analysis of noble metals in geochemical samples—Determination of palladium content-Preconcentration by thiourea-Graphite furnace atomic absorption spectrophotometric method GB/T 17418.5-1998 Methods for analysis of noble metals in geochemical samples—Determination of ruthenium and osmium content-Separation by distillation—Catalytic spectrophotometric method GB/T 17418.6-1998 Methods for analysis of noble metals in geochemical samples—Determination of platinum palladium and gold content-Preconcentration by fire assay-Emission spectrographic method

Superseded by the following standards

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

Referenced Standards

GB 1.4-88 GB/T 14505-93 GB/T 17418.1-1998 Methods for analysis of noble metals in geochemical samples—General rules and regulations DZG 93-010

Related Standards

GB/T 3714-1983 Replaced

GB/T 3714-1983 Technical requirements of manganese carbonate ore powder

Publish Date: 1983-05-24

GB/T 4414-1984 Replaced

GB/T 4414-1984 Methods of sampling and sample preparation of tungsten concentrates in bags

Publish Date: 1984-05-29

GB/T 6150.10-1985 Replaced

GB/T 6150.10-1985 Methods for chemical analysis of tungsten concentrates—The thiocyanate photometric method for the determination of molybdenum content

Publish Date: 1985-06-21

GB/T 6150.11-1985 Replaced

GB/T 6150.11-1985 Methods for chemical analysis of tungsten concentrates—The atomic absorption spectrophotometric method for the determination of copper content

Publish Date: 1985-06-21

GB/T 6150.1-1985 Replaced

GB/T 6150.1-1985 Methods for chemical analysis of tungsten concentrates—The ammonium tungstate igniting gravimetric method for the determination of tungsten trioxide content

Publish Date: 1985-06-21

GB/T 6150.12-1985 Replaced

GB/T 6150.12-1985 Methods for chemical analysis of tungsten concentrates—The hydrochloric acid-sodium chloride supporting electrolyte polarographic method for the determination of lead content

Publish Date: 1985-06-21