BS EN 12046-1:2020 pdf free.Operating forces – – Test method Windows.
BS EN 12046-1 This document specifies the test method for determining the force required when engaging or releasing the hardware of a window and when commencing the movement of a casement or sash, in both opening and closing directions.This document is applicable to all types of openable windows where the movement is a manual operation.This document is applicable to products of any frame material.The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.EN 12519, Windows and pedestrian doors- Terminology.The principle consists of measuring the minimum static force or torque required: -to release or lock the hardware (locks or handles);一to commence opening of the casement or sash;to continue opening/ closing of the sash (in the case of vertical sliding windows);一to complete closing of the casement or sash.Upon the clients request the tests may be performed on sashes/casements only to be opened for cleaning or maintenance mode of operation.A surrounding substantial steel frame with movable steel supports1) into which the sub-frames containing test specimens of various dimensions can be mounted.Means for the application of forces and/or torques with an accuracy of 土5 % uniformly and without shock.The apparatus shall consist of either: 一weights and pulleys (see Figure 1); or an apparatus including a measuring device, with which the required force or torque can be smoothly applied, coupled with an analogue or digital measuring instrument for determining measurements with a resolution of 1 N or 0,1 Nm, and recording equipment (see Figure 2).In neither case shall the apparatus influence the test results.A linear actuator (hydraulic cylinder or other suitable device) coupled with an electronic load cell and measuring and recording equipment, capable of smoothly reaching the required maximum force.Alternatively, a weight and pulley mechanism shall be used. The apparatus shall be mounted so that it is in line with the casement’s or sash’s nominal direction of travel and not deviating from it by more than土5°.BS EN 12046-1 pdf download.