GB/T 13840-1992
Abolished
GB/T 6150.12-2023
Active
National standards
GB/T 6150.12-2023 Methods for chemical analysis of tungsten concentrates—Part 12:Determination of silicon dioxide content—Silicomolybdenum blue spectrophotometry and gravimetry
GB/T 6150.12-2023 Methods for chemical analysis of tungsten concentrates—Part 12:Determination of silicon dioxide content—Silicomolybdenum blue spectrophotometry and gravimetry
Basic Information
Standard Code:
GB/T 6150.12-2023
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Analysis methods for rare metals and their alloys
ICS Name:
Other non-ferrous metals and their alloys
Publish Date:
2023-08-06
Implement Date:
2024-03-01
Publisher:
国家市场监督管理总局、国家标准化管理委员会
Technical Committee:
全国有色金属标准化技术委员会(SAC/TC 243)
Pages:
12 pages
Scope
本文件规定了钨精矿中二氧化硅含量的测定方法。
本文件适用于钨精矿中二氧化硅含量的测定，包含两个方法（方法一：硅钼蓝分光光度法；方法二：重量法)。方法一测定范围（质量分数)：0.50%～10.00%；方法二：测定范围（质量分数)：3.00%～10.00%。测定范围重叠部分以方法一为仲裁方法。
Development Information
Drafting Units:
广东省科学院工业分析检测中心、赣州有色冶金研究所有限公司、北矿检测技术股份有限公司、西安汉唐分析检测有限公司、国标(北京)检验认证有限公司、湖南柿竹园有色金属有限责任公司、中国有色桂林矿产地质研究院有限公司、深圳市中金岭南有色金属股份有限公司丹霞冶炼厂、国合通用(青岛)测试评价有限公司、大冶有色设计研究院有限公司
Drafting Persons:
张永进、唐清、游玉萍、熊晓燕、陈晓东、石象、李智勇、郝俊、方迪、何怡佳、周巧润、赵霞、张碧兰、陈丽芳、吕长宽、申热玲、刘含笑、曾静
Same series standard
GB/T 6150.1-2023 Methods for chemical analysis of tungsten concentrates—Part 1:Determination of tungsten trioxide content—Ammonium tungstate igniting gravimetric method
GB/T 6150.3-2023 Methods for chemical analysis of tungsten concentrates—Part 3:Determination of phosphorus content—The phosphorus molybdenum yellow spectrophotometry and inductively coupled plasma atomic emission spectrometry
GB/T 6150.4-2023 Methods for chemical analysis of tungsten concentrates—Part 4:Determination of sulfur content—High frequency-infrared absorption method and combustion-iodometric method
GB/T 6150.6-2023 Methods for chemical analysis of tungsten concentrates—Part 6:Determination of moisture content—Gravimetric method
GB/T 6150.8-2023 Methods for chemical analysis of tungsten concentrates—Part 8:Determination of molybdenum content—Thiocyante spectrophotometry method
GB/T 6150.10-2023 Methods for chemical analysis of tungsten concentrates—Part 10:Determination of lead content—Hydride generation atomic fluorescence spectrometry and flame atomic absorption spectrometry
GB/T 6150.15-2023 Methods for chemical analysis of tungsten concentrates—Part 15:Determination of bismuth content—Hydride generation atomic fluorescence spectrometry and flame atomic absorption spectrometry
GB/T 6150.18-2023 Methods for chemical analysis of tungsten concentrates—Part 18:Determination of barium content—Inductively coupled plasma atomic emission spectrometry
Replace the following standards
Referenced Standards
GB/T 6682-1992 Water for analytical laboratory use—Specification and test methods
GB/T 6682-2008 Water for analytical laboratory use—Specification and test methods
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 17433-1998 Foundation terms for chemical analysis of metallurgical products
GB/T 17433-2014 Foundation terms for chemical analysis of metallurgical products
Related Standards
GB/T 15677-1995
Replaced
GB/T 15677-1995 Lanthanum metal
GB/T 3136-1995
abolished_transferred
GB/T 3136-1995 Tantalum powders
GB/T 3463-1995
Abolished
GB/T 3463-1995 Tantalum wires
GB/T 3628-1995
Replaced
GB/T 3628-1995 Tantalum and tantalum alloy foils
GB/T 16476-1996
Replaced