1. Bio-Containment Door & Window Systems INTRODUCING the SEALECK BSL2 to BSL4

2. What are BSL levels for? Bio-containment levels or BSL levels vary with the need for containment. These categories apply and relate to the risk imposed on humans and/or animals.  BSL1 = Low risk, basic good laboratory practice  BSL2 = Organisms that are not likely to cause community risk at large but can potentially cause individual risk in the laboratory. Therefore laboratory containment practices are more important than in BSL1  BSL3 = Organisms that may cause serious risk to an individual, but for which effective preventative measures or treatments are available. There is some risk if these organisms spread to the community.  BSL4 = Life threatening risk to individuals and the community at large. Effective treatment and preventative measures are not usually available.

3. How are BSL ratings applied? Australian and worldwide standards are used to guide laboratory managers and owners of facilities where risk might apply, on the correct procedures that should be used in the building and operation of such facilities. In Australia the relevant standards are AS2243 part3 or AS2982 part1  However there are no specific details in standards that define specifications for doors used in such a facility. However, performance criteria is written into the standards providing information on the performance rating expected of the facility.  It is this performance criteria that is then used to determine the individual specifications for doors to meet each rating level.

4. How to select the product best suited to your facility  Because there are no specific specifications for doors to suit particular BSL ratings, we recommend that you examine the features offered in each BSL level in our range and select the mix of features best suited for your needs. For example, you propose to build a BSL2 level facility and you intend to perform frequent fumigations within the facility – in this instance we suggest you select our seamless stainless steel door product which is featured under our BSL3 level.

5. BSL2 Door products BSL2 is generally the level requiring the lowest risk of contamination where our door products are used and are typically specified in the following areas:  Hospital room/ward entrances  Drug production facilities  Low level sterile environments  Note the alternative finishes of powder coated steel or linished stainless steel

6.  Door core is constructed of totally inorganic materials and clad in 0.6mm to 1.6mm thickness steel or stainless steel.  Edge seam is sealed to minimise entrapment of contaminants  Doors and windows are supplied to site pre-hung in the frame (complete with hardware/ironmongery if required) and ready to install, minimising site adjustment

7.  Door frames are typically three sided without a threshold, with a variety of frame profiles and fixing methods to suit most construction techniques.  A standard seal system is provided for the complete perimeter of the door frame and includes a retracting seal at the threshold.

8.  Two piece window and view panels with bevelled edges aid cleaning and minimise entrapment.  Rectangular or square vision panels can be supplied pre- glazed in various sizes pre- fitted to the door.  Two part aluminium – BSL2 only  Stainless steel – BSL2 or BSL3

9. BSL2 Door Options Due to the wide range of size and option requirements, all products are made to order.  Single doors up to a maximum of 2.95 metres high X 1.45 metres wide or  Double doors up to a maximum of 2.95 metres high X 2.9 metres wide  Frames are available in 3 sided form or 4 sided if a step-over threshold is acceptable and in a range of profiles to suit most walling designs.  Seals – A range of seals are available to suit air pressure, vermin and insect control situations.  Finishes – Powder coated steel or linished stainless steel  Hardware – Doors are prepared for or come complete with a full range of lock, panic exit and other architectural hardware.

10. BSL3 Door Products BSL3 ratings generally require more frequent cleaning and fumigation and a much higher risk. Typical instances where BSL3 level is required are as follows:  Specific pathogen free (SPF) environments where mice are grown for research are generally operated at an increased pressure to prevent outside contamination entering the laboratory; air leakage goes out but does not enter.  Animal health research facilities, for example where disease research is envisaged. In these environments the laboratory is operated at a negative pressure compared to the atmospheric pressure to prevent the accidental release to the environment of harmful bacteria.

11.  For this level, Sealeck manufacture a fully seamless stainless steel door leaf clad with 1.6mm 304 grade S/S and matching 1.6 or 2.0mm stainless steel frame  Door frames can be either three sided (or four sided with a step-over threshold for greater containment capability) in a range of profiles to suit most construction methods.  All doors and frames are linished

12.  Doors and windows are supplied to site pre- hung in the frame (complete with hardware/ironmongery if required) and ready to install, minimising site adjustment  A continuous perimeter frame seal is optional for four sided frames with step-over threshold and incorporates radiuses at the corners for superior sealing.  A standard seal system is provided for the three sided frame and includes a retracting seal at the threshold.

13.  Circular, rectangular or square vision panels (windows) can be supplied pre glazed.  Stainless steel rectangular or square windows are available in various sizes to suit BSL3.  Stainless steel circular windows are available with a clear view of 500mmto suit BSL3 or BSL4 applications.

14. BSL3 Door Options Due to the wide range of size and option requirements, all products are made to order.  Single doors up to a maximum of 2.95 metres high X 1.45 metres wide  Frames are available in 3 sided form or 4 sided if a step-over threshold is acceptable and in a range of profiles to suit most walling designs.  Seals – A range of seals are available to suit air pressure, vermin and insect control situations.  Finishes – Linished stainless steel  Hardware – Doors are prepared for or come complete with a full range of lock, panic exit and other architectural hardware.

15. BSL4 High Containment Doors BSL4 is the highest level requiring absolute containment and facilities that operate at BSL4 level may include facilities outlined previously for BSL3 but where the specific research being undertaken poses greater risk to both the environment and the staff and where greater containment requirements are necessary

16.  For this level, Sealeck manufacture an inflatable seal, high containment door in seamless stainless steel  Porthole style vision panel with invisible fixings.

17.  Typically, this door is connected into the clients building access control system and as a result is not supplied with a control system to operate the door.  In special circumstances, and particularly for small sites, Sealeck can offer an air supply and control system to operate the door.  The door and frame system fits into a recess that must be cast into the floor or can be surface mounted for locations where stepping over the threshold can be tolerated.

18.  The door and frame system is supplied in standard form with an electromagnetic lock and wiring, with an airline for connection to a client provided air supply and control system.  Electromagnetic lock holds door in closed position while the inflatable seal activates

19.  Solid stainless steel handles welded at the surface on both sides prevent air leakage through the door.  Stainless steel block hinges with height adjustment

20. BSL4 Door Options Due to the wide range of size and option requirements, all products are made to order.  Single doors up to a maximum of 2.40 metres high X 1.25 metres wide  Finished in linished stainless steel  Designed to accept computerised access wiring and laboratory air control systems  Available with a step over threshold or flush fitting for a preformed floor recess  Frame profiles are designed to suit most walling systems to prevent air leakage  Vision panels - Metal spun stainless steel with a 495mm diameter clear view

21. The SEALECK Philosophy Our success has resulted from a simple philosophy. Provide complete systems that assure our products:  Are constantly reviewed for improvement.  Include the latest technological advancements.  Are manufactured to a finished state.  Arrive on site to quality standards.  Are simple to install.  Are aesthetically pleasing.  Require little or no maintenance.  Achieve the customers expectations. We make building products simple to specify, procure, install and maintain. Various combinations of all the features shown enable us to offer products that meet your specific needs and yet be a standard item for us to manufacture. This eliminates the need for one-off designing and the hazards accompanying such a process. The resulting benefit is your security in knowing that the unit specified will meet your specific requirements and perform the functions you have identified as important.