Spectrum Near-infrared reflectance spectra of Ammonium biphosphate (PE) powder at 270K (down) with 32-80 µm grain sizes Spectrum Near-infrared reflectance spectra of Ammonium biphosphate (AFE) powder at 80K (down) with 32-80 µm grain sizes Spectrum Near-infrared reflectance spectra of Ammonium biphosphate (AFE) powder at 90K (up) with 32-80 µm grain sizes Spectrum Near-infrared reflectance spectra of Ammonium biphosphate (AFE) powder at 100K (up) with 32-80 µm grain sizes Spectrum Near-infrared reflectance spectra of Ammonium biphosphate (AFE) powder at 110K (up) with 32-80 µm grain sizes Spectrum Near-infrared reflectance spectra of Ammonium biphosphate (AFE) powder at 120K (up) with 32-80 µm grain sizes Spectrum Near-infrared reflectance spectra of Ammonium biphosphate (AFE) powder at 130K (up) with 32-80 µm grain sizes Spectrum Near-infrared reflectance spectra of Ammonium biphosphate (AFE) powder at 140K (up) with 32-80 µm grain sizes Spectrum Near-infrared reflectance spectra of Ammonium biphosphate (PE) powder at 160K (up) with 32-80 µm grain sizes Spectrum Near-infrared reflectance spectra of Ammonium biphosphate (PE) powder at 180K (up) with 32-80 µm grain sizes Spectrum Near-infrared reflectance spectra of Ammonium biphosphate (PE) powder at 200K (up) with 32-80 µm grain sizes Spectrum Near-infrared reflectance spectra of Ammonium biphosphate (PE) powder at 220K (up) with 32-80 µm grain sizes Spectrum Near-infrared reflectance spectra of Ammonium biphosphate (PE) powder at 245K (up) with 32-80 µm grain sizes Spectrum Near-infrared reflectance spectra of Ammonium biphosphate (PE) powder at 270K (up) with 32-80 µm grain sizes Spectrum Near-infrared reflectance spectra of Ammonium biphosphate (PE) powder at 290K (up) with 32-80 µm grain sizes