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北京樣本
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Test principal: Continuous Flow Chromatography method, Low temperature nitrogen adsorption
Test methods: Direct Comparison method,, BET (single-point,, multi-point), Langmuir surface area
Adsorption gas: N2 (Adsorbate 99.999%),, He (Carrier 99.999%)
Flow control: automatic control program,, P / Po 0.05 - 0.35, control accuracy error ≤ 0.5%;
Control efficiency: 0.01 ml / min,, each point of P/Po adjustment ≤ 5 seconds
Calibration: the quantitative volume of nitrogen used for calibrating automatically
Measuring range: Surface area ≥ 0.01m2/g,, no upper limits;
Sample NO: 4
Test Efficiency: Direct comparison measures specific surface area: 5-8 minutes per sample
BET surface area: 25 minutes per sample
Repeatability Accuracy: ≤ ±1 %
比表面積測(cè)試儀應(yīng)用領(lǐng)域:
●橡膠材料:炭黑、白炭黑,、碳酸鈣,、氧化鋅、硅膠,、氧化硅等化工原料,; ●電池材料:鈷酸鋰,、錳酸鋰、磷酸鐵鋰,、石墨,、三元材料,、隔膜等電極正負(fù)極材料; ●脫硫脫硝材料:脫硝催化劑等,; ●食品添加劑:淀粉、活性白土,、膨潤土等,; ●磁性材料:四氧化三鐵、鐵氧體,、四氧化三錳等,; ●納米材料:納米陶瓷粉體(氧化鋁、氧化鋯,、氧化釔、氮化硅,、碳化硅等)、納米金屬粉體(銀粉,、鐵粉,、銅粉、鎢粉,、鎳粉等),、納米高分子材料、碳納米管等,; ●煤礦行業(yè):煤,、礦石、巖石,、頁巖氣、煤層氣等,; ●其他材料:超細(xì)纖維,、多孔織物、復(fù)合材料,、土壤等,。
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