H34 选矿药剂 标准查询与下载

YB/T 4866.1-2020 铁矿山露天转地下开采技术规范 第1部分：通用技术规范

Technical Specifications for Conversion of Open-pit to Underground Mining in Iron Mines Part 1: General Technical Specifications

YB/T 4866.2-2020 铁矿山露天转地下开采技术规范 第2部分：协同开采技术规范

Technical Specifications for Conversion of Open-pit to Underground Mining in Iron Mines Part 2: Technical Specifications for Collaborative Mining

YB/T 4795-2019 栅格法铸余渣分隔技术规范

Technical Specification for Separation of Casting Residues by Grid Method

YB/T 4796-2019 风碎-热闷集成处理钢渣技术规范

Technical Specifications for Integrated Treatment of Wind Crushed-Hot Stuffy Steel Slag

YB/T 4794-2019 铁尾矿高浓度运行技术规范

Technical specifications for high-concentration operation of iron tailings

YB/T 4775-2019 路面砖用铁尾矿

Iron tailings for pavement bricks

YB/T 4774-2019 加气混凝土用铁尾矿

Iron tailings for aerated concrete

YB/T 4776-2019 免烧砖用铁尾矿

Iron tailings for burn-free bricks

YB/T 4751-2019 H型钢腹板平面度检验平尺

H-shaped steel web flatness inspection ruler

YB/T 4726.1-2018 含铁尘泥 锌含量的测定 EDTA标准溶液滴定法

Determination of zinc content in iron-containing dust mud EDTA standard solution titration method

YB/T 4726.2-2018 含铁尘泥 氯离子含量的测定 硝酸银滴定法

Determination of chloride ion content in iron-containing dust sludge by silver nitrate titration method

YB/T 4725-2018 钢渣 金属铁含量的测定 三氯化铁-重铬酸钾滴定法

Determination of metallic iron content in steel slag by ferric chloride-potassium dichromate titration method

YB/T 4724-2018 钢渣 二氧化硅含量的测定 高氯酸脱水重量-硅钼蓝光度法

Determination of silica content in steel slag by perchloric acid dehydration gravimetric-silicon-molybdenum blue photometry

YB/T 4714-2018 热轧油泥在线气浮处理技术规范

Technical specifications for online air flotation treatment of hot rolling sludge

YB/T 4710-2018 钢渣 氧化亚铁含量的测定 重铬酸钾滴定法

Determination of ferrous oxide content in steel slag by potassium dichromate titration method

YB/T 4709-2018 钢渣 氧化锰含量的测定 高碘酸钾（钠） 分光光度法

Determination of manganese oxide content in steel slag Potassium (sodium periodate) spectrophotometry

YB/T 4708-2018 钢渣 氧化锰含量的测定 火焰原子吸收光谱法

Determination of manganese oxide content in steel slag by flame atomic absorption spectrometry

YB/T 4713-2018 喷砂磨料用钢渣

Steel slag for sandblasting abrasives

YB/T 4711-2018 钢渣 氧化钾和氧化钠含量的测定 火焰原子吸收光谱法

Determination of potassium oxide and sodium oxide content in steel slag by flame atomic absorption spectrometry

YB/T 4716-2018 轧钢铁鳞 含水量和含油量的测定 热重法

Determination of moisture content and oil content of rolling steel scales by thermogravimetric method