For specific diagnostics, three more tests are sometimes performed on heat transfer fluid samples. These tests provide additional data pertaining to overheating, contamination, and solids measurement. Read each specific test description for their applicability to your fluid's situation.

(Note: These tests are only available as add-ons to either a Standard Fluid Analysis or a Quick Analysis. As stand alone tests, they don't provide any meaningful data; the results must be evaluated together with values from these test packages.)