SILVER METAL purity test
Silver testing solution manufacturer and supplier. Place a drop of acid on the object to be tested. 90 to 100% silver, the acid will show a creamy color. 77-90% silver, the acid turns a gray col.
Description:
Silver testing solution manufacturer and supplier. Place a drop of acid on the object to be tested.
90 to 100% silver, the acid will show a creamy color.
77-90% silver, the acid turns a gray color.
65-75% silver, then the acid will show a light green color.
