Nama Indeks Penampilan | Indeks | ||||
Kelas Premium | Kelas Pertama | Berkualifikasi | |||
Bubuk kristal putih | Bubuk kristal putih | Bubuk kristal putih | |||
Kandungan% (m / m) > | 99.70 | 99.70 | 99.50 | ||
Titik leleh C> | 151.5 | 151.5 | 151.0 | ||
amoniac water chroma, platinum cobalt nomor warna < | 5 | 5 | 15 | ||
Kelembaban % (m / m) < | 0.20 | 0.27 | 0.40 | ||
Abu mg / kg > | 7 | 10 | 35 | ||
Fe mg / kg < | 1.0 | 1.0 | 3.0 | ||
Kandungan nitrat mg / kg < | 10.0 | 10.0 | 50.0 |