標(biāo)準(zhǔn)號：ISO 7530-7-1992
中文標(biāo)準(zhǔn)名稱：鎳合金 火焰原子吸收光譜法 第7部分:鋁含量測定
英文標(biāo)準(zhǔn)名稱：Nickel alloys; flame atomic absorption spectrometric analysis; part 7: determination of aluminium content
標(biāo)準(zhǔn)類型：H62
發(fā)布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標(biāo)準(zhǔn)分類號：H62
國際標(biāo)準(zhǔn)分類號：77.120.40
適用范圍：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.