Chemical Compatibility Matrix

R = Resistant. No significant change was observed in flow rate or bubble point of the membrane, nor visible indication of chemical attack.

L = Limited Resistance. Moderate changes in physical properties or dimensions of the membrane were observed. The filter may be suitable for short-term, non-critical use.

N = Not Resistant. The membrane is basically unstable and is not recommended for use.

I = Insufficient Data. Information is not available. Trial testing is recommended.

The data presented in this chart is a compilation of testing by Pall Corporation with certain chemicals, manufacturer's data, or compatibility recommendations from the Compass Corrosion Guide, by Kenneth M. Pruett. This information is provided only as a guideline and testing is recommended. This data is intended to provide expected results when media is exposed to chemicals under static conditions for 48 hours at 25 °C (77 °F), unless otherwise noted. Chemical compatibility for ultrafiltration membrane was determined with membrane discs. Flux rates and solute retention was determined before and after a two hour exposure to the indicated chemical at room temperature unless indicated differently. If membrane integrity was unchanged, the chemical was deemed compatible. This chart is intended only as a guide. Accuracy cannot be guaranteed. Users should verify chemical compatibility with a specific membrane under actual use conditions because chemical compatibility is affected by many variables including temperature, pressure, concentration, and purity. Various chemical combinations prevent complete accuracy.

Caution: Alcohol residues that are allowed to dry on a filter may cause stress cracks. Pall Corporation recommends that filters used in alcohol processing should remain alcohol wet, or should be flushed with copious quantities of water to remove residuals prior to drying and subsequent reuse.