Standardizing and utilizing the proper analytical technique are key contributors to successfully sorting metal. When an operator uses mobile OES, certain procedures must be followed.
The instrument must be standardized, which is a normalization process using calibration standards. The number of standards used to calibrate the instrument range from 3-5 similar metals with varying elemental concentrations.
Once the instrument is calibrated, the operator needs to determine if seals for the probe head are necessary to contain the light within the probe. The operator must take care to position the probe head as flat as possible to the surface being tested in order to form a good seal. The probe is then activated, and an electrical current is passed through the metal which emits visible light that is then analyzed.
Analysis results appear onscreen as a Green=Pass, or Red=Fail with the grade being analyzed.
For more information on PMI practices or for onsite analysis contact Verichek Technical Services, Inc. today.