GB/T 42249-2022
矿产资源综合利用技术指标及其计算方法
Codes for comprehensive utilization of mineral resources
- 实施日期
- 2023-04-01
- ICS 分类
- 73.020;73.060.01
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 42249-2022
Codes for comprehensive utilization of mineral resources
GB/T 42251-2022
Technical regulations for ecological restoration of mining subsidence area
GB/T 42248-2022
Soil and stream sediment—Determination of iodine and bromine content—Decomposition by sintering inductively coupled plasma mass spectrometry
GB/T 35737-2017
GB/T 10598.1-2017
GB/T 1871.5-2022
Determination of magnesium oxide content for phosphate rock and concentrate—Flame atomic absorption spectrometry,volumetry and inductively coupled plasma optical emission spectrometry
GB/T 6730.61-2022
Iron ores—Determination of carbon and sulfur content—High frequency combustion with infrared absorption method
GB/T 41741-2022
Grading and test method for attapulgite clay
GB/T 41760-2022
Test method for spontaneous polarization of tourmaline
GB/T 42035-2022
Determination of pore size distribution of coal and rock—Nuclear magnetic resonance
GB/T 6730.64-2022
Iron ores—Determination of water soluble chloride content—Ion-selective electrode method
GB/T 6730.83-2022
Iron ores—Determination of loss on ignition—Gravimetric method corrected by hygroscopic water
GB/T 18512-2022
Commercial coal quality—Coal for blast furnace injection
GB/T 17608-2022
Division of variety and grading for coal products
GB/T 397-2022
Commercial coal quality—Coal for coke making
GB/T 42036-2022
Testing specification of single-phase grounding capacitive current in high-voltage power network of mine
GB/T 25209-2022
Commercial coal marking
GB/T 25523-2022
Electric mining rope shovel—Safety requirements
GB/T 3715-2022
Terms relating to properties and analysis of coal
GB/T 20565-2022
Iron ores and direct reduced iron—Vocabulary