assaabloy.com 351 What security level is needed? Lockcases can offer different levels of security suitable for internal and external doors. Depending on your requirement, lockcases can be rigorously tested for durability, strength, function and security. BS 3621 specifies performance requirements and test methods for a thief resistant mechanically operated single-point lock assembly, whilst incorporating EN 12209 field of door application, i.e. a lock that can be locked from both sides with a key, thereby only allowing key egress. These lockcases also undertake: Attack testing against drills (drill attack test to enable the levers to be manipulated) Pick (minimum of 1000 key combinations and general vulnerability assessments) Attack (side and end load on security box strike and a minimum 20mm bolt throw) Saw (saw attack on the deadbolt) Once passed, the product will display a Kitemark logo. Lockcases conforming to EN 12209 undertake rigorous testing including category of use, durability, security and drill resistance etc. This standard covers requirements and test methods for all types of mechanical locks or latches (including associated or separately supplied strike plates), intended for use on pedestrian doors in buildings. CE marking is applicable only to those products where the BS or EN standard has been harmonised under the Construction Products Regulation. A lockcase can only be described as high security when it has a CE Mark. Lockcases Introduction What safety level is required? Safety is one of the most crucial requirements when choosing a lockcase. Some applications do not require a safety feature however if the door is part of an escape / fire route, then you need to ensure that you have means of escape with a single action. EN 179 covers push pads and lever handles which can be used in areas, where members of the public do not have access, such as offices or factories. Another consideration is fire safety. Not only is there a requirement for the lockcase to pass a fire test in either metal or timber doors for a particular amount of time, but also to remain latched / closed – essentially providing a barrier. Select the right size lockcase To help you select the correct mortice lock, the following is a basic guide to the key measurements and dimensions. 1 Case size Distance from the front of the outer faceplate to the back of the case. 2 Backset Distance from the outer faceplate to the centre of the follower or keyhole. This measurement is important when replacing existing locks. 3 Centres Distance between the centre of the follower and centre of the keyhole. This measurement is important for selection of door handles. 3 1 2
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