Spectrum Near-infrared reflectance spectra at 162K of Ammonium hydrogen sulphate-II [(NH4)HSO4] powder with 125-150µm grain size Spectrum Near-infrared reflectance spectra at 163K of Ammonium hydrogen sulphate-II [(NH4)HSO4] powder with 125-150µm grain size Spectrum Near-infrared reflectance spectra at 164K of Ammonium hydrogen sulphate-II [(NH4)HSO4] powder with 125-150µm grain size Spectrum Near-infrared reflectance spectra at 166K of Ammonium hydrogen sulphate-II [(NH4)HSO4] powder with 125-150µm grain size Spectrum Near-infrared reflectance spectra at 167K of Ammonium hydrogen sulphate-II [(NH4)HSO4] powder with 125-150µm grain size Spectrum Near-infrared reflectance spectra at 168K of Ammonium hydrogen sulphate-II [(NH4)HSO4] powder with 125-150µm grain size Spectrum Near-infrared reflectance spectra at 169K of Ammonium hydrogen sulphate-II [(NH4)HSO4] powder with 125-150µm grain size Spectrum Near-infrared reflectance spectra at 170K of Ammonium hydrogen sulphate-II [(NH4)HSO4] powder with 125-150µm grain size Spectrum Near-infrared reflectance spectra at 180K of Ammonium hydrogen sulphate-II [(NH4)HSO4] powder with 125-150µm grain size Spectrum Near-infrared reflectance spectra at 190K of Ammonium hydrogen sulphate-II [(NH4)HSO4] powder with 125-150µm grain size Spectrum Near-infrared reflectance spectra at 200K of Ammonium hydrogen sulphate-II [(NH4)HSO4] powder with 125-150µm grain size Spectrum Near-infrared reflectance spectra at 205K of Ammonium hydrogen sulphate-II [(NH4)HSO4] powder with 125-150µm grain size Spectrum Near-infrared reflectance spectra at 210K of Ammonium hydrogen sulphate-II [(NH4)HSO4] powder with 125-150µm grain size Spectrum Near-infrared reflectance spectra at 215K of Ammonium hydrogen sulphate-II [(NH4)HSO4] powder with 125-150µm grain size Spectrum Near-infrared reflectance spectra at 220K of Ammonium hydrogen sulphate-II [(NH4)HSO4] powder with 125-150µm grain size Spectrum Near-infrared reflectance spectra at 230K of Ammonium hydrogen sulphate-II [(NH4)HSO4] powder with 125-150µm grain size Spectrum Near-infrared reflectance spectra at 245K of Ammonium hydrogen sulphate-II [(NH4)HSO4] powder with 125-150µm grain size