Varnish Testing by Color Evaluation - Membrane Patch Colorimetry ('MPC')
- Benjamin Yong
- Aug 15, 2023
- 1 min read
Updated: Oct 16, 2024
In this post, we shall discuss some of the harms caused by varnish due to oil oxidation product formation as well as Varnish Testing by Colour Evaluation - Membrane Patch Colorimetry.


This is also known as ASTM D7843 or MPC Varnish Potential Testing - one of the intended test that is used to measure the level of risk that varnish contaminantion poses to gas turbine performance.
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