标准摘要
[中文适用范围]： 硅含量可确定在 0.2% (m/m) 至 1% (m/m) 范围内。 其原理是：将供试品溶解在酸中，过滤，将试液吸入原子吸收光谱仪的一氧化二氮-乙炔火焰中，过滤器燃烧，二氧化硅挥发，残渣熔化，熔体溶解在酸中。 稀酸，将第二种溶液吸入另一个这样的火焰中，测量铝光谱中共振线能量的吸光度，并与 309.3 nm 处的校准溶液进行比较。 [外文原描述]： Silicon content can be determined in the range of 0,2 % (m/m) to 1 % (m/m). The principle is dissolution of a test portion in acid, filtration and aspiration of the test solution into a nitrous oxide-acetylene flame of an atomic absorption spectrometer, combustion of the filter, volatilization of silica, fusion of the residue, dissolution of the melt in dilute acid, aspiration of this second solution into another such flame, measurement of the absorbance of the resonance line energy from the spectrum of aluminium and comparison with that of calibration solutions at 309,3 nm.
英文名称Nickel alloys — Flame atomic absorption spectrometric analysis — Part 7: Determination of aluminium content