Integrity Testing Services

Determining if a sterilizing grade filter is integral can be done via non-destructive integrity testing.

The test parameters for sterilizing grade membrane filters are based on correlating the test parameters with the LRV of the filter against a 107 CFU/cm2 challenge with Brevundimonas diminuta.

The filter cartridges can be tested by industry standard procedures as recommended in PDA Technical Report 26.

The test parameters are dependent on the surface tension of the wetting fluid to be used. Therefore, the parameters used in the procedures, listed below, assume the wetting fluid to be water. For test values using wetting fluids other than water the adjusted parameters have to be determined.

Hall Pyke can carry out and advise on the following integrity test procedures:

  • Bubble Point
  • Water intrusion test
  • Forward Flow Diffusion
  • Pressure Hold Test
  • Wetting Procedures

Available Downloads

RR Retention Rating
MT Maximum temperature recommended of a working product in degrees centigrade
MoC Primary material of construction
MoC Primary material of construction
MP Maximum working pressure of housing in bar
Brand Manufacturing brand name supplying the product
FE Filter efficiency
Q Quality assurances and certificates validating this product