Gold Tester(XRF): Fast,Non-damaged,can test pure gold & silver & plantium & uniform gold & Karat gold etc very well. Test precision could meet 0.1%. Require national standard samples to calibrate before testing; Acceptable One-time investment and low cost for daily use
densimetry: Fast, Low cost , effective analysis for high content gold. Many procedures will cause result difference. The test tolerance for sample of 90% concentration is 1% -5%
The non-damaged methods for testing gold ,silver,plantinum are not universal,the limitation exisit, so each method should be complementd to get correct conclusion..
The effective test method for precious metal is to combine the gold tester with densimetry, take the advantages of each test method. This is the more than 10 years successful experience of testing thousands of jewelleries in Jewellery fild. |
