 Fire-resistant glass is a special glass type which can keep its structure unity,thermal insulated performance and heat radiation intensity under the condition of standard of fire-resistance.
Fireproof glass is classified into 3 types as per the fire-resistance,that is,Type A,B,C
Type A:the fire-resistant glass which can keep structure unity and thermal insulated performance
Type B:the fire-resistant glass which can keep structure unity and heat radiation intensity
Type C:the fire-resistant glass which can keep structure unity
Type A,B,C fire-resistant glass has 4 grades:
| Fire-resistant grade |
|
Fire-resistant time(minutes) |
| Ⅰ |
≥ |
90 |
| Ⅱ |
≥ |
60 |
| Ⅲ |
≥ |
45 |
| Ⅳ |
≥ |
30 |
|
