Specificiation:

Purity % ≥ 99.50% 
chroma, the platinum- cobalt color howls ≤ 15 
density (20 ), g/cm3 1.1155 ~ 1.1176 
water content, % (m/m) ≤ 0.1 
dry point   ≤ 250 
Ethylene glycol,% (m / m) ≤ 0.15 
Three glycols, % (m/m) ≤ 0. 40 
Iron (2 + counts with Fe) % (m/m) ≤ 0. 0001 
Acid content (with acetic acid meter) % (m/m) ≤ 0.01