Izi ndi za hygroscopic. Ndi kusintha kwa nthawi ndi kutentha, chinyezi ndi mtundu zidzawonjezeka.
Chiyero≥97.5%
Phukusi: Monga pempho la kasitomala.
Posungira:Kusunga pa mpweya wokwanira, malo ouma.
ExecutiveZokhazikika:International Standard.