1、raising standards worldwide NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BSI Standards Publication BS ISO 614:2012 Ships and marine technology Toughened safety glass panes for rectangular windows and side scuttles Punch method of non-destructive strength testingBS ISO 614:2
2、012 BRITISH STANDARD National foreword This British Standard is the UK implementation of ISO 614:2012. The UK participation in its preparation was entrusted to Technical Committee SME/32/-/8, Ships b) Form B: for all glass panes with a size 200 mm and 250 mm. The test apparatus shall also meet the r
3、equirements of Table 1. Dimensions in millimetres a) Form A ISO 2012 All rights reserved 1BS ISO 614:2012ISO 614:2012(E) b) Form B c) Details of punch Key 1 base plate 2 flat ring 3 pad 4 punch 5 glass pane under test 6 adapter Figure 1 Form of test apparatus 2 ISO 2012 All rights reservedBS ISO 614
4、:2012ISO 614:2012(E) Table 1 Components of test apparatus Component Material Specification Base plate Steel Thickness: sufficient to prevent deformation under pressure Surface: flat Flat ring Rubber, hardness 40 IRHD to 60 IRHD a Internal diameter: Form A: Form B: 200 mm 150 mm, to be flush with the
5、 adapter Thickness: 2 mm Width: 15 mm min. Punch Steel Lower part flattened so that the diameter of 12,5 mm is obtained Pad Felt or fibre-board Thickness: approximately 5 mm for felt or approximately 2 mm for fibre-board External diameter: approximately 50 mm Adapter Steel External diameter: Interna
6、l diameter: to be flush with the hole in the base plate 150 mm for glass panes of side scuttles of nominal size 200 mm aIRHD = International Rubber Hardness Degrees. See ISO 48. 4 Procedure 4.1 Positioning of components Place the glass pane on top of the flat ring, so that the edge of the glass pane
7、 is not less than 25 mm from the edge of the hole in the ring. Position the punch centrally over the flat ring. Interpose a pad between the glass pane and the punch. 4.2 Proof load Apply a load to the punch, increasing steadily, at a rate of 1 000 N/s, until the appropriate proof load given in Table
8、 2 is reached. Table 2 Proof loads Thickness of glass pane Proof load with test apparatus nominal mm tolerances mm Form A N Form B N 6 0,2 3 400 3 500 8 0,3 6 500 6 700 10 10 200 11 000 12 15 500 15 0,5 24 000 19 1 a 33 400 25 1 53 000 aSee ISO 21005: (to be published). Maintain the specified load f
9、or 5 s and then gradually remove the load. ISO 2012 All rights reserved 3BS ISO 614:2012ISO 614:2012(E) 4.3 Test result The glass pane shall remain unbroken and shall show no signs of damage. 5 Marking 5.1 Thermally toughened safety glass panes, tested in accordance with this International Standard,
10、 shall be marked as follows: a) Clear glass panes: Single inverted equilateral triangle with the nominal thickness of the glass shown within the triangle. b) Surface-treated glass panes: Double inverted equilateral triangle with the nominal thickness of the glass shown within the triangle. The marki
11、ng should be visible after assembly. NOTE Marking is applied after the obscuring process but before toughening. 5.2 Marking shall have the minimum dimensions shown in Figure 2. Dimensions in millimetres a) Clear glass b) Surface treated glass Figure 2 Examples of markings 4 ISO 2012 All rights reser
12、vedBS ISO 614:2012BS ISO 614:2012 ISO 614:2012(E) ISO 2012 All rights reserved ICS 47.020.10; 81.040.30 Price based on 4 pagesThis page deliberately left blankBSI is the independent national body responsible for preparing British Standards and other standards-related publications, information and se
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