GWS

 

A

AA

AAA

PURITY

≥99.95%

≥99.98%

≥99.98%

MOISTURE

≤7.5%

≤7.5%

≤7.5%

ADMIXTURE

≤0.05%

≤0.02%

≤0.02%

BROKEN

≤3.0%

≤1.0%

≤1.0%

 

 

 

GWS—A

 

GWS—AA

 

GWS—AAA