A notifying body approval from FM, VDS, UL, DNV, etc. will consist of a listing which is fully controlled. This means that they list the system on a public webpage where everybody can verify that the approval exists and is valid. To get such a watermist approval the system has to undertake four approval parts:
– Fire testing of the system to a fire test protocol they refer to (often this protocol is issued by themselves).
– Component testing of the system components to a test protocol they refer to.
– Approval of the system DIOM, drawings, technical literature.
– Approval of the production facilities.
The fire tests can be conducted in certain recognized test laboratories, minimum having an ISO 17025 accreditation, but often also needing additional approvals or acceptance from the notifying bodies. The fire tests are always witnessed by the notifying bodies, independent of laboratory approvals and accreditations.
All component tests are carried out in the notifying bodies own laboratories, and these tests often take more than one year to complete. Revision marked technical and sales literature are approved, and finally the production facilities have to be approved, and this is independent of the production facilities existing ISO 9001 accreditation approvals.
The only limitations to these approvals are the scope since not all applications or systems are covered by Approval Standards. In these cases more ad-hoc Watermist Fire Testing is the solution.