GB 15763.2-2005 PDF EnglishUS$85.00 · In stock · Download in 9 seconds
GB 15763.2-2005: Safety glazing materials in building -- Part 2: Tempered glass Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid
Similar standardsGB 15763.2-2005: Safety glazing materials in building -- Part 2: Tempered glass---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GB15763.2-2005ICS 81.040 Q 33 GB NATIONAL STANDARD Replacing GB 9963-l998 Replacing GB 17841-l999 (Partial) Safety Glazing Materials in Building – Part 2.Tempered Glass Issued on. AUGUST 30, 2005 Implemented on. MARCH 1, 2006 Issued by. General Administration of Quality Supervision, Inspection and Quarantine (AQSIQ); Standardization Administration (SAC) of the People's Republic of China Table of ContentsForeword... 3 1 Scope... 5 2 Normative References... 5 3 Definition and Classification... 5 4 Glass Used for Tempered Glass... 6 5 Requirements... 6 6 Test Method... 11 7 Inspection Rules... 15 8 Marking, Packaging, Transportation and Storage... 16 Appendix A (Informative) Relevant Explanation for Tempered Glass... 181 ScopeThis part of GB 15763 specifies the classification, technical requirements, test methods and inspection rules of the tempered glass which is used in building and is fabricated by heat treatment process. This part of GB 15763 is applicable to the tempered glass which is used in building and is fabricated by heat treatment process. As for tempered glasses for other purposes other than building (such as industrial equipment, furniture, etc.), if there is no corresponding product standard, this standard may be adopted by reference according to their product features.2 Normative ReferencesThe following standards contain provisions which, through reference in this part, constitute provisions of this part. For dated reference, subsequent amendments (excluding corrections), or revisions of any of these publications do not apply. However, the parties who enter into agreement based on this part are encouraged to investigate the possibility of applying the most recent editions of the standards. For undated references, the latest edition of the normative document referred to applies. GB 9962-1999 Laminated Glass GB 11614 Float Glass GB/T 18144 Test Method for Measurement of Stress in Glass3 Definition and Classification3.1 Definition Tempered glass. it refers to the glass undergone heat treatment process. It is characterized by a compressive stress layer formed on its surface. Its mechanical strength and thermal shock resistance strength are improved. And it has special characteristics of fragmentation. 3.2 Classification 3.2.1 Tempered glass may be classified into the following types by production process. Tempered glass fabricated with vertical method. the tempered glass fabricated by method of clamping and hanging, during the tempering process. Tempered glass fabricated with horizontal method. the tempered glass fabricated by method of horizontal roller support, during the tempering process. 3.2.2 Tempered glass may be classified into plane tempered glass and curved surface tempered glass, by shape.4 Glass Used for Tempered GlassAs for the glass used for tempered glass, its quality shall meet the requirements specified in corresponding product standard. As for glass used for tempered glass with special requirements, its quality shall be determined by the Supplier and the Purchaser.5 RequirementsAll the performances and test methods of tempered glass shall be in accordance with those specified in Table 1.In which, the safety performance requirements are compulsory. 5.1 Dimension and permissible deviation 5.1.1 Side length permissible deviation of rectangular plane tempered glass The side length permissible deviation of rectangular plane tempered glass shall meet those specified in Table 2. 5.1.2 Diagonal line deviation of rectangular plane tempered glass The diagonal line deviation of rectangular plane tempered glass shall meet those specified in Table 3. 5.1.3 Dimensions and permissible deviation of tempered glasses in other shapes Determined through negotiation of the Supplier and the Purchaser. 5.1.4 Processing of sides The shape and quality of side processing shall be determined through negotiation of the Supplier and the Purchaser. 5.1.5 Round hole 5.2 Thickness and permissible deviation 5.2.1 Permissible thickness deviation of tempered glass shall meet those specified in Table 5. Table 5 Thickness and Permissible Deviation In mm 5.2.2 For glass of which the nominal thickness is not specified in Table 5, its permissible thickness deviation may adopt the requirements for glasses of which the thickness is adjacent to and is thinner, or it may be determined through negotiation of the Supplier and the Purchaser. 5.3 Appearance quality Appearance quality of tempered glass shall meet those specified in Table 6. 5.4 Degree of curvature As for the curvature degree of plane tempered glass, it shall not exceed 0.3% if the glass is arch-shaped, and not exceed 0.2% if the glass is wave-shaped. 5.5 Impact resistance Take 6 tempered glasses for test. If there is not more than 1 test sample damaged, it is deemed as qualified. If there are 3 or more test samples damaged, it is deemed as unqualified. If the damaged samples are 2, it may take another 6 glasses for re-test. If all samples are not damaged, it is deemed as qualified. 5.7 Shot-bag impact performance Take 4 flat pattern glass specimens for test. 1 of the following items 1) or 2)) shall be met. 5.9 Thermal shock resistance performance Tempered glass shall be capable of withstanding a temperature difference of 200ºC without damage.6 Test Method6.1 Dimension inspection Dimensions shall be measured with the straight steel ruler or steel tape (the minimum scale is 1mm). 6.2 Thickness inspection Use outside micrometer or the tool with equivalent accuracy, measurement at midpoints of the 4 sides at 15mm away from the glass sides. Arithmetic average of measuring results is the thickness value which shall be rounded to 2 digits after the decimal point (in mm). 6.3 Appearance inspection The inspection shall be conducted on specimen taken from finished products according to the method specified in GB 11614. 6.4 Measurement curvature degree The specimen shall be placed at room temperature for more than 4h. During measurement, the specimen shall be vertical, and 2 cushion blocks shall be padded at lower 1/4 the side length. A straight rule or metal wire shall be used to close fit either sides or diagonal lines of the product, and the spacing between straight side and glass shall be measured with a feeler gauge. The degree of curvature (arch-shaped) shall be expressed by the percentage of ratio of arch height to chord length. 6.5 Impact resistance test 6.5.1 Test specimen shall be the plane tempered glass - same thickness, same type, fabricated with the same process conditions of finished products, and dimension of 610mm (-0mm, +5mm)×610mm (-0mm, +5mm). 6.5.2 Test equipment shall comply with the requirements specified in Appendix A of GB 9962-1999.The impact surface shall be kept horizontal. When testing curved surface tempered glass, corresponding auxiliary frame is required for supporting. 6.5.3 A smooth-surface steel ball with a diameter of 63.5mm (mass is about 1040g) shall be placed at 1000mm above the surface of the test specimen. Let it fall freely. The impact point shall be within 25mm of the center of the specimen. 6.6 Fragment state test 6.6.1 Finished products shall be taken as specimen. 6.6.2 Test equipment Any device capable of retaining the fragment pattern. 6.6.3 Test procedure 6.6.3.1 The tempered glass specimen shall be placed freely and flat on the test bed. Scotch tape or other things shall be used to restrict the glass periphery, so as to avoid splashing of glass fragments. 6.7 Shot-bag impact performance test 6.7.1 Specimen Test specimen shall be the rectangular plane tempered glass - same thickness, same type, fabricated with the same process conditions of finished products, and dimension of 1930mm (-0mm, +5mm)×864mm (-0mm, +5mm). 6.7.2 Test device Test device shall meet the requirements of Appendix B in GB 9962-1999. 6.7.3 Test procedure 6.7.3.1 The impact body shall be hoisted by using a flexible steel wire rope with a diameter of 3mm. The distance between the periphery of the maximum diameter part of the cross section of impact body AND specimen surface shall be less than 13mm. And it shall be less than 50mm away from the specimen center. 6.8 Measurement of surface stress 6.8.1 Specimen Measurement shall be conducted by taking finished products as specimen and according to the method specified in GB/T 18144. 6.8.2 Requirements for measuring point As shown in Figure 7, at distance of 100mm away from the long side, draw 2 parallel lines in parallel to the long side, and intersect at 4 points with the diagonal lines, these 4 points and the geometrical center of specimen are the measuring points. 6.8.3 Measuring result The arithmetic average of values measured at each measuring point shall be the measuring result. 6.9 Thermal shock resistance performance Place the tempered glass specimen (300mm×300mm) in the dry oven at 200ºC±2ºC for more than 4h, and then take it out and immediately immerse it vertically in 0ºC ice water mixture; more than 1/3 of the specimen height shall be immersed in water, and observe whether the glass is damaged after 5min.7 Inspection Rules7.1 Inspection item Inspection is divided into delivery inspection and type inspection. 7.1.1 Type inspection The safety performance requirements in the technical requirements are required inspection items, other requirements shall be determined through negotiation between the Supplier and the Purchaser. 7.1.2 Delivery inspection The inspection items are thickness and deviation, appearance quality, dimension and deviation and degree of curvature. Other inspection items shall be determined through negotiation between Supplier and demander. 7.2 Sampling method by batching 7.3 Judgment rules If the quantity of unqualified product is equal to or greater than the rejection number listed in Table 8, the appearance quality, dimension deviation and degree of curvature of this batch of products are deemed as unqualified. Other performances shall also meet the corresponding requirements, otherwise they shall be deemed as unqualified. If one item in the above-mentioned items is unqualified, this batch of products shall be deemed as unqualified.8 Marking, Packaging, Transportation and Storage8.1 Packaging Wooden case or container (pallet) should be adopted for packaging, and the container (pallet) shall facilitate loading, unloading and transportation. Glasses of the same thickness and dimension shall be put into one container (pallet). Protective measures shall be adopted between glasses as well as between glass and container (pallet) so as to avoid glass damage and scratch on the glass surface. 8.2 Package mark Package mark shall meet the requirements of relevant national standards. Such marks or words as "Upward, Gently Handled and Normally Placed, Fragile, Keep Dry" shall be indicated on each container. 8.3 Transportation Glass shall be firmly fixed during transportation in order to prevent sliding and overturning; rain-proof measures shall be adopted. 8.4 Storage Product shall be stored in a place without moisture condensation or with rain-proof facilities. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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