Servicing, validation, commissioning

Crowthorne Hi Tec is not associated with any manufacturers or suppliers of microbiological safety cabinets or clean air equipment. We can provide a completely unbiased report on the performance achieved, and are also able to service multiple systems from multiple suppliers in the same visit. Talk to us to learn more.

Microbiological Safety Cabinets, Clean Air Cabinets & Isolators

There is a statutory requirement to carry out testing and validation of microbiological safety cabinets. Performance tests are carried out to BS EN12469 and include HEPA filter integrity, airflow velocity and visualization tests, operation of airflow indicators & alarms and KI-Discus(aperture protection factor) tests. KI-Discus test can also be carried out to determine product protection and cross contamination levels. Installation of the cabinet is assessed against the requirements of BS5726 : 2005. Cabinets located in ACDP containment level 3 laboratories should have the KI-Discus test carried out six monthly.

In order to comply with health & safety regulations safety cabinets used for known or potential human pathogens must be rendered safe prior to service. We offer a full fumigation service including re-circulating cabinets where it is not possible to safely discharge the fumigant to atmosphere.

Clean air / Laminar Flow Equipment

Clean air equipment can only be relied upon for product protection once the airflows have been correctly set, and a HEPA filter integrity test is performed to the specified standard. Air cleanliness within the device is shown by carrying out particle counts and determining the cleanliness level as defined in BS EN 14644. Since HEPA filters load with particulate during operation periodic servicing is essential to ensure performance continues to meet specification.

Tests are only reliable when carried out using the correct instruments which have calibration traceable to National Standards. All of our test equipment meets the latest standards and is calibrated by an external qualified calibration house or equipment manufacturer.

Routine Service Checks

  • Inspect pre-filter and replace as required
  • Check operation of all switches
  • Check operation of warning systems
  • Check operation of speed control
  • Check general condition of fan
  • Check service outlets
  • Check operation of contactors & relays
  • Check operation of air flow indicators and pressure gauges
  • Check operation of vaporizer
  • Check airflow velocities
  • Check lighting tubes and light levels
  • Check noise levels
  • Check HEPA filter In-Situ filter leak test
  • Check operator protection [KI-Discus]
  • Check product protection [KI-Discus]
  • Test certificates issued for each cabinet

The above are generic specifications and can be tailored to suit customer requirements.

Servicing and Validation from Crowthorne

Crowthorne Hi Tec is not associated with any manufacturers or suppliers of microbiological safety cabinets or clean air equipment. We can provide a completely unbiased report on the performance achieved, and are also able to service and validate multiple types of system from multiple suppliers in the same visit. We can also commission, validate and service cleanroom and containment room facilities. Talk to us to learn more.

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