防火玻璃 具有优良的防火隔热隔声性能，透明度高，理化性能好。 技术指标： • 外观与普通玻璃相当。 • 可见光总透过率：不低于普通平板玻璃的 95% 。

• 耐水性：在常温下自来水中浸泡 30 天无变化。
• 耐紫外线性：在 40w 紫外灯下距试样 30mm 照射半年无变化。
• 耐低温性：在 -10 ℃的环境中放置 8h 无变化。 防火性能：经国家固定灭火系统和耐火构件质量监督检验测试中心检测耐火极限为：甲级 1.2h ，乙级 0.9h ，丙级 0.6h 。 

 Fireproof glass
It has good functions of fireproof, heat insulation and noise insulation. The transparency is high. The physical and chemical function is also good.
The technical target:
• The exterior is the same as common glass.
• The general pervious rate of visible light: not less than 95% of common glass.
• Water-resistance: Under normal atmospheric temperature, soak sample in running water for 30 days, there is any change on sample.
• Ultraviolet ray resistance: under shining of ultraviolet ray lamp for half a year, there is any change on sample.
• Low temperature resistance: after putting sample in environment with-10 ℃ for eight hours, there is any change on sample.
• Fireproof: the fireproof limit is A grade 1.2h, B grade 0.9h, C grade 0.6h inspected by the National Regular Fire-extinguishing System and Fire-resistance Structural Member Quality Control Inspect and Test Center. 

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