Acid Testing or Assay
PMROFCA understands time is money; we serve many industries but in that majority of our businesses are walk in customers. That’s why we pride ourselves on our fast testing methods to determine the value of your precious metals. Acid testing is also called as hand testing, because we can perform it through hand without any use of machinery. Acid or hand testing is usually performs for gold scrap. It has been used by jewelers, refiners, and other precious metal experts for centuries. This method may be used for precious metals in small pieces or lots.
Working – Before starting an assay, out experts will carefully inspect each and every item. We then scratch a piece of the metal against a basalt stone; this scratching will leave a mark on the stone. By applying definite strengths of nitric acid to this mark and measure the resulting reaction, we can truthfully measure the purity of the precious metal and give you fair and quick payouts. Acid testing is effectively used in measuring and testing the items purity for small items. By using this we can determine whether the item is faked or plated. It is free and results are immediate.