BS 8510:2009 pdf free download – Child use and care articles – Safety of children’s sleep bags – Safety requirements and test methods.
5.4 Button box with a slotted plate, for testing of buttons, tack buttons, pom-poms and beads. Examples of different types of button box are shown in Figure 2a) and Figure 2b). The box shall be of sufficient size to accommodate the attachment to be tested but the shape and dimensions of the box are not critical. The slotted plate shall be as shown in Figure 3 made from gauge plate metal (1.65 ± 0.15) mm thick. The slot width, W, shall be such that the attachment being tested can slide onto the plate without damaging the means of attachment (e.g. sewing thread or shank).
NOTE 1 The slotted plate may be an integral part of the button box, or be interchangeable to allow the testing of attachments of different sizes or types.
NOTE 2 Slot widths of (3±0.2) mm, (5±0.2) mm and (7±0.2) mm have been found to be suitable to test the majority of attachments used on children ‘s sleep bags.
NOTE 3 It is recommended that the button box attachment to the load cell be articulated to make it easier to slide in the component under test.
5.5 Press fastener upper grip, for testing of press fasteners, including press stud fasteners, comprising a multi-pronged claw, with a minimum of three prongs and able to grasp a minimum of 70% of the circumference of the outer rim of the fastener. The prongs shall be evenly spaced. The profile of the claw shall be such that it is capable of gripping the fastener and can be tightened to grip it firmly without causing deformation of, or damage to the integrity of, the fastener rim.
An example of a suitable grip for the testing of 13, 14 and 15 ligne (8.25 mm, 8.5 mm and 9.5 mm) press stud fasteners is shown in Figure 4.
NOTE 1 The three-pronged claw used for tension testing in accordance with 85 EN 71-1 should not be used as this does not have a suitable profile for testing fasteners and could exert a shearing force rather than a direct pull.
NOTE 2 Where the outer rim of the male side of the press fastener is not grippable, an alternative grip may be used to grip the centre post.
5.6 Press fastener lower grip, for testing of press fasteners including press stud fasteners, as shown in Figure 5.
NOTE The dimensions of this grip have been found to be suitable to test the majority of press fasteners used on children’s sleep bags.
5.7 Diamanté upper grip, for testing of fused or glued on diamantés >3 mm, comprising a two pronged grip, as shown in Figure 6, capable of opening sufficiently to slide over the diamanté, and sprung loaded in order to grip under the edges of the diamanté as the grip rises.
5.8 Diamanté lower grip, for testing of fused or glued on diamantés >3 mm, comprising a central post as shown in Figure 7 and a clamping
ring (see Figure 7).
5.9 Flat-faced clamping device, for use as the lower grip for testing of all attachments other than press fasteners, diamantés and slide fastener puller attachments, comprising a clamping device fitted with a front jaw face (25 ± 1) mm x (25 ± 1) mm, and a back jaw face not less than (25 ± 1) mm x(50 ± 1)mm.