[China Glass Network] Everyone knows about the car glass. But if you talk about how to mark the American car glass, I believe that not many people can explain it. This article introduces the US safety glass material marking requirements <br> < br> United States on a standard glass has FMVSS205 standards.
In addition to the information required by the FMVSS205 standard (DOT symbols and NHTSA assigned numbers), all safety glass materials produced in accordance with this standard are clearly and permanently marked with text and numbers, with a mark height of at least 1.78 mm (0.070 in). Mark the words "American National Standard" or "AS" and add the number of models (the number of models should be assigned by the manufacturer of the safety glass material and associated with a specific glass material) to determine the type of construction of the glass material. At the same time, the product manufacturer's distinctive designation or trademark should be marked. In addition to the above markings, each piece of safety glass material shall be marked with the corresponding number in the test standard appendix at a height of at least 1.78 mm (0.070 in) immediately adjacent to the words "American National Standard" or "AS". These letters or words that represent a specific meaning and the corresponding numbers in the test standard appendix should be placed outside the product manufacturer's special mark or trademark, but should be close to, preferably below.
If the "manufacturer's standard" or "date mark" is applied outside the mark, spaces or hyphens are used to separate them from confusion. Any part cut from the safety glass material with the above various markings should also be marked with the same words, signs, letters and numbers.
Bullet-resistant materials should also be marked as described above. The difference is that the type of structure should be followed by the letters "AS" and numbers. The model number is specified in accordance with the provisions of paragraph 4 of section 1.1. The character height is at least 1.78. Millimeter (0.070 inches).
For a single piece of glass material surface, if the partial area transmission coefficient is not less than 70% (according to Test 2), and the transmittance of the adjacent area is less than 70%, then the edge should be placed at the edge for a long time. The parts defined by it meet the requirements of Test 2. The mark should be AS↓1, AS↓14 or AS↑2, and so on. The area indicated by the arrow indicates that it meets the requirements of Test 2, and the number indicates the category to which it conforms. Such markings will be used as a supplement to the markings described above, and will also include category numbers that correspond to locations where the transmission coefficient is not less than 70%.
Each piece of glass material that conforms to Category 4A, 11C, 12, 13, 14, 15A, 15B, 16A or 16B should be attached with a manually removable label. The label shall specify the glass material and composition, the special requirements for cleaning and cleaning, to avoid a decrease in transparency, the method of removing frost and ice, and the manufacturer's recommendations to guide the owner to refer to the vehicle manual for more information on cleaning and other Aspects of operational requirements. Even each piece of glass material conforming to categories 14, 15A, 15B, 16A and 16B should be marked with the following text in the middle and lower parts for a long time, with a text height of not less than 4.8 mm (3/16 inch) and no more than 6.35 mm (1/4 inch): " GLASS PLASTIC MATERIAL SEE OWNER'S MANUAL FOR CARE INSTRUCTIONS ."
Through the above introduction, I believe that you have a better understanding of the US automotive glass if you have the knowledge of marking.
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