NO

Test Item

Technical Requirements

Test Results

Decision

1

Length

±0.5

+0.02~+0.1

Qualified

2

Wide

±0.5

-0.02~+0.01

Qualified

3

Thickness (%)

±10

-0.8~+3.2

Qualified

4

Side straight (%)

±0.2

-0.03~+0.03

Qualified

5

Surface flatness (%)

±0.3

-0.01~+0.06

Qualified

6

Right angle (%)

±0.3

-0.04~+0.05

Qualified

7

Center of curvature (%)

-0.20~+0.40

-0.07~+0.17

Qualified

8

Edge curvature (%)

-0.20,+0.40

-0.03~+0.09

Qualified

9

Water absorption (%)

Average maximum 10<E<20

6<E<10

Qualified

10

Breaking pressure(N)

Thickness≥7.5mm, ≥600

1206

Qualified

11

Modulus of rupture(Mpa)

Average≥15 single≥12

Average:23

Qualified

12

Surface quality

at least 95% tiles no defect from 0.8 away uprightly

No visible defects

Qualified