中文
EnglishIs there a 3C sign on the fireproof glass?
With the development of fire-proof glass market demand and the strengthening of the implementation of national standards, the role and position of fire-proof glass in buildings are gradually improved. Fireproof glass, fireproof window and other products will show blowout development in the next few years. In the face of many varieties of fire-proof glass, consumers can not distinguish the grade, classification and application of fire-proof glass. They are vague about the concept of qualified fire-proof glass and have no corresponding common sense.
Fireproof glass according to glass for building Part 1: fireproof glass gb15763 As described in part 1-2009, it is mainly divided into class A and class C. The fire resistance is divided into five grades: 0.50h, 1.00h, 1.50h, 2.00h and 3.00h. Purchase according to the requirements of design drawings. After the type and fire resistance rating of fire-proof glass are clear, it is also very important to distinguish the authenticity of fire-proof glass products. Fire-proof glass with qualified quality is usually marked with three parts:
1. CCC identification. Class a fireproof glass corresponds to thermal insulation fireproof glass (composite fireproof glass). Such fireproof glass can be sold only after passing the national compulsory product certification, and the product must have this mark before it is qualified. Class C fireproof glass is non insulated (single piece fireproof glass), and this kind of glass does not need to pass compulsory certification.
2. Product type identification. It is clearly stipulated in glass for building Part 1: fireproof glass gb15763.1-2009 that the marking method of composite fireproof glass is FFB and that of single fireproof glass is DFB. For example: ffb-25-a1 50 (composite fireproof glass with nominal thickness of 25mm, fire resistance and thermal insulation of class A and fire resistance time of 1.5h). The first item represents the product structure type, the second item represents the nominal thickness of fireproof glass, and the third item represents the fire resistance of fireproof glass and the time expressed in hours. No matter what type of fireproof glass, each piece needs to be strictly marked according to the above specifications.
3. Company logo. Qualified fire-proof glass manufacturers have formal production and sales qualifications, and must have their own brand. The company logo represents the company brand, while non-standard small factories do not respond to the logo and specification.
Article source: fireproof glass http://www.www.hzjunyuekj.cn/
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