To validate the performance of our products we undertake a varied and wide-ranging test programme. Using external verification bodies we ensure that every system we sell provides the protection needed by our customer.
Flood Defence


flood defencedefence-flood-2







The test procedure adopted is that outlined in FM 2510: Approval Standard for Flood Abatement Equipment section 4.3:

Test Description Condition* Duration
Hydrostatic Load 100 percent x h ± 0.6cm 22hr
Dynamic Impact Load Impact at weakest point of system N/A
Post Hydrostatic Load 100 percent x h ± 0.6cm 1hr
Dynamic Impact Load Impact at the system connection to the supporting structure N/A
Post Hydrostatic Load 100 percent x h ± 0.6cm 1hr


The hydrostatic load test determines the capability of the product seal preventing water ingress and the ability to withstand the force of the head of water. In the dynamic impact load test a 50kg log is used to simulate debris strike during a flood event, with a further hydrostatic test after each impact to test the product is still capable of preventing water ingress.

On-Site Flood Testing


defence-on-site-flood-testTo give full confidence in the performance of our flood defence products we offer on-site flood testing. The specific means of testing varies on each project and product and includes utilising a temporary bund to simulate a flood event or fixing a specialist rig to the outer frame of a product to test it in isolation.




Blast Testing


defence-blast-1Performance testing for products designed to resist explosive loadings is a key element in the Defence Doors design process. Generally testing is undertaken in line with the method from ISO 16933:2007 – Glass in Building – Explosion Resistant Security Glazing – Test and Classification for Arena Air Blast Loading. Other standards for blast testing include:




  • GSA-TS01-2003, US General Services Administration, Standard Test Method for Glazing and Window Systems Subject to Dynamic Overpressure Loadings
  • ASTM International, F 1642-04, Standard Test Method for Glazing and Glazing Systems Subject to Airblast Loadings
  • BS EN 13123-2:2004, Windows, doors and shutters – Explosion Resistance – Requirements and Classification – Part 2: Range Test


Our doors have been tested using a 100kg TNT equivalent explosion at a 25m range. The doors performed to category I remaining closed and fully operable post-blast.

We have also had a range of blast windows tested under the same conditions, performing to ISO 16933:2007 Hazard Rating A (No Break).

Beyond type testing of doorsets, each blast product we design is subject to an independent check of the calculations used during the design phase. This verifies the product can withstand the blast loading specified by each of our customers.

Fire Resistance


defence-fire-1Fire resistant doors serve an important purpose during a fire event. They restrict the development and spread of a fire, minimising the damage it can cause. They also allow for safe evacuation, protecting escape routes for emergency egress.

Test standard BS EN 1634-1 evaluates the time a door can withstand a fire attack – the time it can prevent flames or hot gasses from passing. We have had several doorsets tested in accordance with BS EN 1634-1 up to a performance time of four hours.


Gas Tight Testing


We can undertake gas tight doorset testing for specific projects. Normally this requires the involvement of a third-party verification body to independently assess the performance of the product before dispatch. Testing is undertaken in a chamber as specified under BS 7268 and test standards used include ASTM F1069 – 87 (2012) and BS 6375-1:2015