| 303711 |
China |
China NIL Research Center for Proficiency Testing
China NIL Research Center for Proficiency Testing
|
Determination of hydrogen in steel
[钢中H含量的测定（国际比对）]
Determination of hydrogen in steel
[钢中H含量的测定（国际比对）]
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2023-03-28 |
|
|
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| 304177 |
China |
China NIL Research Center for Proficiency Testing
China NIL Research Center for Proficiency Testing
|
Determination of loss on Ignition, magnesium oxide and sulfur trioxide in cement
[水泥中烧失量、氧化镁和三氧化硫含量的测定（国际比对）]
Determination of loss on Ignition, magnesium oxide and sulfur trioxide in cement
[水泥中烧失量、氧化镁和三氧化硫含量的测定（国际比对）]
|
2023-03-28 |
|
|
|
| 297400 |
China |
China NIL Research Center for Proficiency Testing
China NIL Research Center for Proficiency Testing
|
Determination of Cr, Ni, Cu, Mo and Al in low alloy steel by spark atomic emission spectrometry
[用火花源原子发射光谱法测定低合金钢中化学成分（国际比对）]
Determination of Cr, Ni, Cu, Mo and Al in low alloy steel by spark atomic emission spectrometry
[用火花源原子发射光谱法测定低合金钢中化学成分（国际比对）]
|
2023-03-28 |
|
|
|
| 304190 |
China |
China NIL Research Center for Proficiency Testing
China NIL Research Center for Proficiency Testing
|
Determination of the Chemical Composition in cement
[水泥化学成分分析（国际比对）]
Determination of the Chemical Composition in cement
[水泥化学成分分析（国际比对）]
|
2023-03-28 |
|
|
|
| 304153 |
China |
China NIL Research Center for Proficiency Testing
China NIL Research Center for Proficiency Testing
|
Determination of Fe, Al and Ca in metallurgical silicon
[工业硅中化学成分分析（国际比对）]
Determination of Fe, Al and Ca in metallurgical silicon
[工业硅中化学成分分析（国际比对）]
|
2023-03-28 |
|
|
|
| 304166 |
China |
China NIL Research Center for Proficiency Testing
China NIL Research Center for Proficiency Testing
|
Proximate analysis of coal
[煤工业分析（国际比对）]
Proximate analysis of coal
[煤工业分析（国际比对）]
|
2023-03-28 |
|
|
|
| 304145 |
China |
China NIL Research Center for Proficiency Testing
China NIL Research Center for Proficiency Testing
|
Determination of gold and silver in ore
[矿石中金、银含量的测定（国际比对）]
Determination of gold and silver in ore
[矿石中金、银含量的测定（国际比对）]
|
2023-03-28 |
|
|
|
| 304004 |
China |
China NIL Research Center for Proficiency Testing
China NIL Research Center for Proficiency Testing
|
Determination of Ni, Cu, Fe and Mg in nickel ore
[镍矿石中化学成分分析（国际比对）]
Determination of Ni, Cu, Fe and Mg in nickel ore
[镍矿石中化学成分分析（国际比对）]
|
2023-03-28 |
|
|
|
| 304053 |
China |
China NIL Research Center for Proficiency Testing
China NIL Research Center for Proficiency Testing
|
Determination of Cu, S, As and Ag in copper concentrates
[铜精矿中化学成分分析(国际比对)]
Determination of Cu, S, As and Ag in copper concentrates
[铜精矿中化学成分分析(国际比对)]
|
2023-03-28 |
|
|
|
| 304225 |
China |
China NIL Research Center for Proficiency Testing
China NIL Research Center for Proficiency Testing
|
Determination of lead and cadmium content in soil
[土壤中重金属Pb、Cd含量的测定（国际比对）]
Determination of lead and cadmium content in soil
[土壤中重金属Pb、Cd含量的测定（国际比对）]
|
2023-03-29 |
|
|
|
| 304216 |
China |
China NIL Research Center for Proficiency Testing
China NIL Research Center for Proficiency Testing
|
Room temperature tensile test for hot rolled ribbed steel bar (recommended testing machine: 300kN~1000kN)
[热轧带肋钢筋拉伸试验（国际比对）]
Room temperature tensile test for hot rolled ribbed steel bar (recommended testing machine: 300kN~1000kN)
[热轧带肋钢筋拉伸试验（国际比对）]
|
2023-03-28 |
|
|
|
| 304037 |
China |
China NIL Research Center for Proficiency Testing
China NIL Research Center for Proficiency Testing
|
Determination of Zn,Cu,Pb and Fe in zinc concentrates
[锌精矿中化学成分分析（国际比对）]
Determination of Zn,Cu,Pb and Fe in zinc concentrates
[锌精矿中化学成分分析（国际比对）]
|
2023-03-28 |
|
|
|
| 304024 |
China |
China NIL Research Center for Proficiency Testing
China NIL Research Center for Proficiency Testing
|
Determination of Zn, Pb,Cu and Fe in zinc ore
[锌矿石中化学成分分析（国际比对）]
Determination of Zn, Pb,Cu and Fe in zinc ore
[锌矿石中化学成分分析（国际比对）]
|
2023-03-28 |
|
|
|
| 304210 |
China |
China NIL Research Center for Proficiency Testing
China NIL Research Center for Proficiency Testing
|
Determination of chloride ions in cement
[水泥中氯离子含量的测定（国际比对）]
Determination of chloride ions in cement
[水泥中氯离子含量的测定（国际比对）]
|
2023-03-28 |
|
|
|
| 303808 |
China |
China NIL Research Center for Proficiency Testing
China NIL Research Center for Proficiency Testing
|
Determination of Si, Fe, Cu, Mg and Mn in aluminium alloy
[铝合金中化学成分分析（国际比对）]
Determination of Si, Fe, Cu, Mg and Mn in aluminium alloy
[铝合金中化学成分分析（国际比对）]
|
2023-03-28 |
|
|
|
| 303785 |
China |
China NIL Research Center for Proficiency Testing
China NIL Research Center for Proficiency Testing
|
Determination of Si, Fe, Cu, Mg and Zn in pure aluminum
[纯铝中化学成分分析（国际比对）]
Determination of Si, Fe, Cu, Mg and Zn in pure aluminum
[纯铝中化学成分分析（国际比对）]
|
2023-03-28 |
|
|
|
| 303750 |
China |
China NIL Research Center for Proficiency Testing
China NIL Research Center for Proficiency Testing
|
Determination of C, Si, Mn and P in ferromanganese alloy
[锰铁中化学成分分析（国际比对）]
Determination of C, Si, Mn and P in ferromanganese alloy
[锰铁中化学成分分析（国际比对）]
|
2023-03-28 |
|
|
|
| 303768 |
China |
China NIL Research Center for Proficiency Testing
China NIL Research Center for Proficiency Testing
|
Determination of Si, Mn, P and S in Si-Mn alloy
[硅锰合金中化学成分分析（国际比对）]
Determination of Si, Mn, P and S in Si-Mn alloy
[硅锰合金中化学成分分析（国际比对）]
|
2023-03-28 |
|
|
|
| 303975 |
China |
China NIL Research Center for Proficiency Testing
China NIL Research Center for Proficiency Testing
|
Determination of SiO2, CaO, MgO, Fe2O3 and Al2O3 in limestone
[石灰石中化学成分分析(国际比对)]
Determination of SiO2, CaO, MgO, Fe2O3 and Al2O3 in limestone
[石灰石中化学成分分析(国际比对)]
|
2023-03-28 |
|
|
|
| 303871 |
China |
China NIL Research Center for Proficiency Testing
China NIL Research Center for Proficiency Testing
|
Determination of TFe, SiO2, P and S in iron ore
[铁矿石中化学成分分析（国际比对）]
Determination of TFe, SiO2, P and S in iron ore
[铁矿石中化学成分分析（国际比对）]
|
2023-03-28 |
|
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