ISO 12870 describes a test for bridge deformation under load and checks the fit of the spectacle lens in the frame. The left lens is mounted between two ring-shaped clamping jaws. The right lens is then moved with a rod up to 8 mm with a force of 5 N. After 5 seconds, the frame is released, and after 20 seconds, the deformation is measured. The permanent deformation must not exceed 2%, and the frame must not show any cracks or breaks.

ISO 12870 describes a test for bridge deformation under load and for testing the fit of the lens in the frame. For this test, the left lens is clamped between two ring-shaped jaws. The right lens is then deformed downwards by up to 8 mm or up to a force of 5 N using a punch. After 5 seconds, the frame is released, and the deformation is measured after 20 seconds. The permanent deformation must not exceed 2% and the eyeglass frame must not have any cracks or breaks.

The ISO 14569-1 standard addresses the abrasion of dental materials by toothbrushes. Dental samples are moved under the toothbrush with a defined cleaning force in the X and Y directions by a motor control system. Various curved paths, straight movements, circular motions, Z-movements, or figure-eight motions are possible. The cleaning force is applied by weights and can be adjusted independently for each station. The distance and angle of the filaments to the sample surface are easily adjustable via controls. During the cleaning process, a toothpaste mixture is pumped over the brushes. Each sample is immersed in the toothpaste mixture in a sample chamber. A collection tray, designed for easy cleaning, is located beneath the sample chamber. The test rig is controlled by a PLC and features a touchscreen for inputting test parameters. The cleaning motion (curved path), stroke, speed, and number of cleaning cycles can be adjusted. Its compact design makes this test rig ideal for laboratory use.

The flexural stiffness of a toothbrush's bristles is crucial for its cleaning performance and consumer perception. Determining this stiffness allows for the classification of toothbrushes as soft, medium, or hard, ensuring consistent product quality. The force exerted on the filaments during a brushing motion is measured. Normalized to the bristle area, this yields the stiffness. The number of strokes, stroke length, and speed can be adjusted. The flexural stiffness of a toothbrush's bristles is crucial for its cleaning performance and consumer perception. Determining this stiffness allows for the classification of toothbrushes as soft, medium, or hard, ensuring consistent product quality. The force exerted on the filaments during a brushing motion is measured. Normalized to the bristle area, this yields the stiffness. The number of strokes, stroke length, and speed can be adjusted.

The tester consists of a traction device, the clamping device of the toothbrush and the force transducer with clamping of filaments. The test is started manually by pressing the button. By pressing the button for the feed > 3 s is switched to the automatic feed. This will stop by pressing a button or by reaching the end position. The movement (max. 150 mm), and the speed rate can be adjusted continuously (between 20 and 100 mm/min). The travel can be limited. An overdrive allows the rapid retraction to the starting position. Precise linear guide used in combination with a maintenance-free controllable motor provide smooth power even under heavy load. The force gauge enables sampling up to 1 kHz, which allows a high reproducibility of the results. The holder of the brush and the clamp Filamenete comply with the standard.

The TMD-545/N is a Rigging tower for Line Array Systems specially designed to reliably lift speakers of up to 500 kg (1103 lb) to a maximum height of 6.25 m (20 ft 6 in) using a manual 2000 kg chain hoist. GUIL’s engineers have created a totally innovative tower, certified for outdoor use, that can be assembled and operated by a single person, with just two minutes help from a colleague during assembly. The TMD-545/N is fitted with a double-handled winch, which makes the work of setting up the tower quicker and easier. The TMD-545/N comes totally equipped with all components and elements necessary for use: complete operating structure, with chain hoist for lifting and double-handled winch for set-up, etc. You get a complete tower, ready to go straight out of the box. Its meticulous design offers easy assembly and handling, and the whole tower occupies only 1.49 m3 in one single block when stowed. The TMD-545/N is supremely manoeuvrable, easy to store, transport and position, and offers safety, strength and reliability for the user. One of the most convenient and functional towers on the market, it is the perfect solution for touring! The rigging tower TMD-545/N is supplied with an interactive application “TMD-545/N APC”, for its use outdoors, establishing the maximum wind speeds depending on your PA System.

The TMD-570 Line Array Lifting Tower is a compact, exclusive design by GUIL, specially created to reliably lift Line Array systems of up to 800 kg (1,760 lb) to a maximum height of 8 metres (26 ft 3 in) using an electric motor. GUIL’s engineers have created a totally innovative tower, certified for outdoor use under European norm EN 13814. Its meticulous design offers quick and easy assembly. The TMD-570 tower is extremely manoeuvrable, all the components of the tower fit without spare parts in a single base (with a volume of just 3.68 m3 – 130 ft3), making it easy to transport and store. The tower is supplied with the interactive application “TMD-570 APC” for its use outdoors, taking into account the maximum wind speeds permitted by applicable standards.

GUIL designs and manufactures a wide range of towers and trusses which allow us to offer the structure you prefer to lift and hang your LED/Video screen, for both indoor and outdoor use. Our heavy-duty aluminium truss combined with our modular GROUND SUPPORT towers or ULK Towers and a comprehensive range of box corners, base plates and other accessories enables you to design the structure best suited to the dimensions and weight of your LED screen. All support systems consist of our standard towers and truss range to offer the possibility to use these components for other applications. ► Support structures made up of heavy-duty truss systems with Towers with hand winch (models TMD-600/7 and TMD-600/8) or electric hoist* (models TMD-900/8 and TMD-548). ► Our front-loading ULK lifters are very versatile, and can be used for numerous tasks such as hanging LED screens, hanging line array systems, lifting truss structures, and much more. We manufacture more than 10 different models for medium size LED screens that have to reach up to of 8m height. ► Support structures made up of heavy-duty truss systems available in square formats: 290 x 290 mm (Ref. TQN290) and 400 x 400 mm (Ref. TQN400XL). Please let us know the screen weight and dimensions, and which lifting system you choose, so that we can offer the structure that is best adapted to your requirements. NOTE: All these systems require by law the use of cables, slings, ropes, etc, to secure the structure and prevent any movement. *Electric motors not included.

Ground Support tower to lift loads of up to 500 kg (1,100 lb) to a maximum height of 7.39 m (24 ft 3 in) and a work height of 7 m (23 ft). Tower structure composed of 400 x 400 x 3 mm (15.75 in x 15.75 in) reinforced square truss sections and sleeve block. Double-handled BULL500 winch. Designed and manufactured for both indoor and outdoor use.