You can test with a (low voltage) source of 60Hz, and a reasonably high impedance meter. Let's assume you're only distinguishing between 0.01µF and 0.001µF, and don't need an accurate measurement.
At 60 Hz, 0.01µF has a reactance of 265kΩ. If you place it in series with a 220kΩ resistor, the two will have a similar voltage drop. (Total won't equal the input voltage; the capacitor is reactive, not resistive.)
If it's 0.001µF, the voltage across the resistor will be about 1/10 of the test voltage.