... Description Summary:SYD-17040 X-ray Fluorescence Sulfur Tester is specially designed to determine sulfur content in ... : 60, 120, 240, 300, and 600 s at random;5. It can make determination automatically for single ... 2, 3, 5, 10, and 50 times at random; it will show average value and standard deviation ... at end of measurement.6. Calibration curve numbers: ...