石膏板

Item

Standard value 

Actual value

 Weight per unit

(kg/m2)

---

Thickness(mm)

Normal

Fire proof

Water proof

≥9.5

9.5

7.7

8.3

8.2

≥12.0

12

9.4

9

10.3

≥15.0

15

11.6

11.8

---

Rupture load(N)

vertical

Horizontal

Thickness (mm)

Vertical

Horizontal

≤360

≤140

9.5

513

171

≤500

≤180

12

684

213

≤650

≤220

15

781

281

Protect paper joint with core material

Not naked

Not naked

Stability of meeting fire(for fire proof board)

≤20

>20

Soap up ratio(%)(for fire proof board)

≥10

Thickness (mm)

Soap up ratio

9.5

7.2

12(12.7)

8.5

Inner irradiation ratio

IRa≤1.0

A type direction materials

IRa<1.0

Outer irradiation ratio

Iγ≤1.3

A type direction materials

Iγ<0.1         

Remark:

 according to China standard of GB/T 9775-1999, GB 6566-2001