5N high-purity gold, in the form of loose, polyporous sponge, refers to gold with its purity no less than 99.999% based on tests of 21 impurity elements, which includes Ag, Cu, Fe, Pb and Bi, in accordance with relevant requirements of recommending national standard GB/T T25933-2010
product purity ≮99.999%, with its color and appearance of yellow loose and polyporous sponge form
Packing may be in different
specifications in accordance with certain requirements
