Inspectionn item

Technical requirementes

Results

Decision

Appearance

It is uniform color and luster,without evident chromaic aberration and no crack and stractification

√

Acceptance

Hardness (shorea), HB

60-75

70

Acceptance

Rebound, %

≥8

11

Acceptance

Strength of extension Mpa

≥2.0

3.2

Acceptance

Tensile yield

≥100

152

Acceptance

Smoldering, class

1

1

Acceptance

Thickness, mm

5.0±0.5

5.1

Acceptance

Difference of thickness, mm

≤0.5

0.3

Acceptance

Friction coefficient

≤0.55-0.75

0.65

Acceptance

Vinyl chloride,mg/kg

≤5

Not detected

Acceptance

Soluble hcavy

Metal, mg/sqm

≤20  cadmium

0.78

Acceptance

≤20  plimbum

0.39

Acceptance

Volatile content,g/sqm

≤75

7.6

Acceptance