Thermo Scientific Coating Weight Gauges
X-ray Fluorescence (XRF)- based coating weight gauges are used in the galvanizing industry to save time and raw zinc. However, the lack of internationally recognized primary standards for calibrating online XRF-based coating weight gauges requires galvanizing lines to develop their own reference samples following the ASTM A754/A754M standard test method. With an increase in the use of Advanced High Strength Steel (AHSS) and their unique chemistry in galvanizing lines, separate calibration samples may be needed to account for the different behavior of the substrate in the alloy layer growth.
Download our "Challenges associated with developing XRF coating weight standards" white paper to learn about a method of developing GI reference samples that minimizes the observed error in online coating weight calibration curves.