www.hyprofiltration.com Colorimetric analysis per ASTM D02.C0.01 WK13070 is used to determine varnish potential. A petroleum ether mixture agglomerates soluble by-products rendering them insoluble and visible for patch analysis. The patch is analyzed with a spectrometer measuring DE reported as the MPC DE value. Figure 1 depicts SVR1200 installed on 7FA gas turbine experiencing unit trips from sticking servos. The SVR1200 had an immediate

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