GB/T 1871.5-2022
ActiveDetermination of magnesium oxide content for phosphate rock and concentrate—Flame atomic absorption spectrometry，volumetry and inductively coupled plasma optical emission spectrometry
磷矿石和磷精矿中氧化镁含量的测定 火焰原子吸收光谱法、容量法和电感耦合等离子体发射光谱法