Code

Items

Unit

Standard

1

Standard Thickness

mm

2.3~2.7±0.2

2

Density (Weight)

g/cm³

880±40

3

Water Content

%

[5

4

Non-Straightness of Edge

mm/m

±1.0

5

Flexural Strength

Max Turnup /Diagonal

[0.5%

6

Elastic Modulus

Mpa

≥3200

7

Internal Bonding Strength

Mpa

＞1.0

8

20⁰C/24hThickness Expansion after Absorbing Water (Bared)

%

≤35

9

Static Bending Strength

Mpa

≥35

10

Size Stability

Thickness Direction

%

-4.5 or 5

Length Direction

%

-0 or 1.50

11

Surface Hardness

N/mm²

80±5

12

Formaldehyde Release

mg/100g

[40