1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 614:2012Ships and marine technology Toughened safety glasspanes for rectangular windowsand side scuttles Punchmethod of non-destructivestrength testingBS ISO 614:2012 BRIT
2、ISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 614:2012. The UK participation in its preparation was entrusted to TechnicalCommittee 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 requirements
3、of Table 1.Dimensions in millimetresa) Form A ISO 2012 All rights reserved 1BS ISO 614:2012ISO 614:2012(E)b) Form Bc) Details of punchKey1 base plate2 flat ring3 pad4 punch5 glass pane under test6 adapterFigure 1 Form of test apparatus2 ISO 2012 All rights reservedBS ISO 614:2012ISO 614:2012(E)Table
4、 1 Components of test apparatusComponent Material SpecificationBase plate SteelThickness: sufficient to prevent deformation under pressure Surface: flatFlat ringRubber, hardness 40 IRHD to 60 IRHDaInternal diameter: Form A:Form B:200 mm150 mm, to be flush with the adapterThickness: 2 mmWidth: 15 mm
5、min.Punch Steel Lower part flattened so that the diameter of 12,5 mm is obtainedPad Felt or fibre-boardThickness: approximately 5 mm for felt orapproximately 2 mm for fibre-boardExternal diameter: approximately 50 mmAdapter SteelExternal diameter:Internal diameter:to be flush with the hole in the ba
6、se plate150 mm for glass panes of side scuttles of nominal size 200 mmaIRHD = International Rubber Hardness Degrees. See ISO 48.4 Procedure4.1 Positioning of componentsPlace the glass pane on top of the flat ring, so that the edge of the glass pane is not less than 25 mm from the edge of the hole in
7、 the ring.Position the punch centrally over the flat ring.Interpose a pad between the glass pane and the punch.4.2 Proof loadApply a load to the punch, increasing steadily, at a rate of 1 000 N/s, until the appropriate proof load given in Table 2 is reached.Table 2 Proof loadsThickness of glass pane
8、 Proof load with test apparatusnominalmmtolerancesmmForm ANForm BN6 0,2 3 400 3 50080,36 500 6 70010 10 200 11 00012 15 500 15 0,5 24 000 19 1a33 400 25 1 53 000 aSee ISO 21005: (to be published).Maintain the specified load for 5 s and then gradually remove the load. ISO 2012 All rights reserved 3BS
9、 ISO 614:2012ISO 614:2012(E)4.3 Test resultThe glass pane shall remain unbroken and shall show no signs of damage.5 Marking5.1 Thermally toughened safety glass panes, tested in accordance with this International Standard, shall be marked as follows:a) Clear glass panes: Single inverted equilateral t
10、riangle 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 marking should be visible after assembly.NOTE Marking is applied after the obscuring pr
11、ocess but before toughening.5.2 Marking shall have the minimum dimensions shown in Figure 2.Dimensions in millimetresa) Clear glassb) Surface treated glassFigure 2 Examples of markings4 ISO 2012 All rights reservedBS ISO 614:2012BS ISO 614:2012ISO 614:2012(E) ISO 2012 All rights reservedICS 47.020.1
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