Ltem

National standard

Testing index

90 mm

90 mm

Anti-impact Capacity/times

≥5

≥10

Anti-bending damage

load/times over deadweight

≥1.5

≥4

Compressive strength/Mpa

≥3.5

≥5

Softening coefficient

≥0.80

≥1

Surface density Kg/㎡

≤90

≤70

Moisture rate a/%

≤12/10/8

≤10/9/7

Drying shrinkage value/mm/m

≤0.6

≤0.5

Hanging force/N

≥1000

≥1300

Sound insulation/dB

≥35

≥40

Fire proof limit/h

≥1

≥3

Radioactivity limit(soild boards)

≤1

≤1

Inner radiation index

≤1

≤1

Outer radiation index

≤1

≤1

Specification

Thickness

Lenght

Width

Reference weight

90

90

2270/2440

610

55±5