What is MPC Oil Testing and What Does it Indicate? The Membrane Patch Colorimetry (MPC) test measures the color bodies of insoluble contaminants in lubricants. It uses solvent extraction to capture varnish and oxide insolubles from a fluid sample on a micron filter membrane (patch). Varnish tends to color the patch and by measuring the…
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What is MPC Oil Testing and What Does it Indicate?
