Method Has anyone aquarium tested SN from China ?

[WonderingSoul]

My SN arrived recently, but I don't want to open it until I CTB. They told me it is over 99% pure, but I'd appreciate if someone told me how their test was from SN ordered from China.

 

[Lost cherry]

I ordered from aliexpress

 

[Lost cherry]

Premium test strips 6 in 1 and 80 strips professional litmus paper, i will wait 3 weeks..