carries out all Class II Microbiological Safety Cabinet maintenance in accordance with the requirements of BS EN12469 2000 or by company in house test codes.

On a normal service visit or commissioning tests the following checks are made.

We recommend that each unit is checked once every 6 months for:-

Six monthly check:-

1.	Operation of all services and system controls.
2.	Filter and seal integrity tests.
3.	Inspection of the door mechanism for corrosion and damage.
4.	Inspection of main body and duct for corrosion and damage.
5.	Check alarm and airflow gauge for correct operation and calibration.
6.	Check anti-blow back device for correct operation.
7.	Pre filter changed if necessary.

Twelve monthly check:-

8.	All the above checks and also including Ki Discus test

Air inflow measurement - As per requirements of BS5726:1992 Part 3 Appendix A or by company in house codes.
Using - Airflow Developments AV2 Anemometer.

Filter and seal integrity tests - As per requirements of Appendix B of BS5726: Part 1: 1992. Results should comply with Section 8.5 of BS5726: Part 1: 1992. .Cabinets fitted with double exhaust HEPA filters should have each filter tested individually.
Using - Taylor Smoke generator and ATI forward light scattering photometer

Operator protection Ki Discuss tests - Carried out to the requirements of BS5726 Part 1 1992 Section 12.1 and Appendix D4 (Potassium Iodide method). The standard states that the unit shall only be passed if the operator protection factor exceeds l x l0⁵.
Using - Containment Technology KI Discuss Machine

Give full test certificate. - All test equipment where necessary is always calibrated and carries a full calibration test certificate. Any of these certificates are available on special request.