Excerpt from the GMP Series E-Book “A Pharma Guide Planning and Constructing Cleanrooms”
The implementation phase includes three stages:
This scheme is based on established Good Engineering Practice (GEP) principles. It should be noted that pharmaceutical authorities also recommend GEP as a methodology for the design of pharmaceutical plants.
The essential elements of GEP in the conception, planning and construction of pharmaceutical production facilities are summarized below:
All these requirements are handled step-by-step and iteratively and are included in the URS. They form the basis for further qualification steps as a precondition for pharmaceutical use. Annex 15 of the EU GMP Guidelines also describes, among other things, the requirements for qualification of plants and equipment.
In practice, it has proved successful to provide a room book as an appendix to the URS for cleanroom construction and also to use it for checking the FDS. In the context of qualification, it can also be used as a reference document for the verification of the individual qualification steps.
The Functional Design Specification (FDS) provided by the supplier specifies how the URS will be implemented. The FDS is then checked for plausibility and fulfilment of all the requirements listed in the URS and adapted, if necessary, or rejected.
The terms "URS" and "FDS" are less common for cleanroom construction and utilities engineering (electrical, ventilation, air conditioning, compressed air, etc.). The planner usually creates a list of specifications with functional descriptions, quantities and services on the basis of the specifications in the URS. This performance specification list is regarded as equivalent to an FDS and does not have to be "translated" into a new document.
Figure 3.E-3 The path from concept to qualified system
1 Standards and other guidelines are to be considered only as recommendations and do not always represent the current state of the art.
Excerpt from the GMP Compliance Adviser
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