Comparison of Individual Membrane Type Means to Overall Meana
| Membrane Typeb | n | Membrane Type Mean BP Ratio | % of Overall Mean BP Ratio of 1.0042 |
|---|---|---|---|
| CA1 | 51 | 1.01 | 101% |
| PA 1 | 19 | 0.97 | 97% |
| PES/PVDF | 3 | 0.91 | 90% |
| PES1 | 41 | 1.02 | 101% |
| PES2 | 107 | 1.00 | 100% |
| PES3 | 13 | 0.96 | 95% |
| PES4 | 2 | 1.01 | 101% |
| PES5 | 1 | 1.00 | 100% |
| PP1 | 2 | 1.00 | 100% |
| PTFE1 | 6 | 1.00 | 100% |
| PTFE2 | 3 | 0.92 | 91% |
| PTFE3 | 10 | 1.02 | 101% |
| PVDF-hydrophobicc | 1 | 2.02 | 201% |
| PVDF1 | 114 | 0.99 | 99% |
| PVDF2 | 99 | 1.00 | 100% |
| PVDF3 | 40 | 1.05 | 104% |
↵a The first column lists the membrane types represented in the data. The second and third columns list the number of bubble point (BP) ratios (n) and the mean BP ratio for tests conducted using each membrane type, respectively. The fourth column is the mean BP ratio for each membrane type expressed as a percent of the overall mean BP ratio for all tests. The single test using a hydrophobic PVDF membrane, which was excluded from ANOVA calculations, has been identified by a footnote.
↵b Membrane types are: CA, cellulose acetate; PA, polyamide; PES, polyethersulfone; PP, polypropylene; PTFE, Polytetrafluoroethylene; PVDF, polyvinylidene fluoride. Numerical suffixes refer to different manufacturers.
↵c Excluded from ANOVA.