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ASTM D 4294 standard X-ray Fluorescence Sulfur tester/ total sulphur content tester

Main technical parameters
1. Measurement range: 7 ppm to 5%;
2. Precision:
(1) Repeatability: 0.029 ( S+0.6);
(2) Reproducibility: 0.063 ( S+0.6);
3. Sample quantity: 2 to 3 ml (it is equal to sample depth of 3 mm to 4 mm);
4. Measurement time: 60, 120, 240, 300, and 600 s at random;
5. The X-ray Fluorescence Sulfur tester can make determination automatically for single sample. Measurement times: can set 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: it can save 9 calibration curves. 5 pieces of them are linear equation in one unknown and 4 pieces of them are binomial parabola.
7. Working condition:
(1) Temperature: 5 to 40 °C;
(2) Relative humidity: =85% (30 °C);
(3) Power supply: AC 220V±20V, 50 Hz;
(4) Rated power: 30 W;
8. Size and weight: 468 mm×368 mm×136 mm; 13 kg;