| No |
Test item |
Standard index |
Test value |
Single item determination |
| High-class |
Qualified class |
| 1. |
High-class qualified class |
Vestige |
indistinc |
indistinc |
indistinc |
eligible |
| Coating omit not allowed |
not allowed |
not allowed |
no |
eligible |
| ripples |
not allowed |
indistinct |
no |
eligible |
| rubbles(≤10mm) |
not allowed |
not more than 1/m2 |
no |
eligible |
| flaw(≤3mm) |
not more than 3/m2 |
not more than 10/m2 |
no |
eligible |
| abrasion |
not allowed |
total length not more than100mm/m2 |
no |
eligible |
| scratch |
not allowed |
total area not more than300mm/m2 |
no |
eligible |
| total numberof abrasion and scratch |
not allowed |
less than 4parts |
o part |
eligible |
| aberration |
indistinct |
indistinct |
indistinct |
eligible |
| 2. |
Size deviation |
length |
+-3mm |
3mm |
eligible |
|
width |
+-2mm
|
0mm - +2mm |
eligible |
|
thickness |
+-0.2mm
|
-0.04mm
- -0.02mm |
eligible |
|
squareness |
≤5mm |
≤1mm |
eligible |
|
edge unstraightness |
≤1mm/m |
≤0.7mm/m |
eligible |
|
warpage
|
≤5mm/m |
≤1mm/m |
eligible |
| 3. |
coating thickness
|
min.>=25um |
26um, average 27um
|
eligible |
| 4. |
Gloss tolerance |
<=10(gloss<70)
<=5(gloss>=70)
|
0.9
|
eligible |
| 5. |
Pencil hardness
|
>=HB
|
2H |
eligible |
| 6. |
Coating flexibility |
<=2T
|
2T |
eligible |
| 7. |
Coating adhesive |
not lower than class 1 |
class zero or class 1
|
eligible |
| 8. |
Impact resistance |
no depainting, no crack |
50kg.cm
no depainting |
eligible |
| 9. |
Grinding resistance |
>=5L/um
|
6.9L/um
|
eligible |
| 10. |
Boiling water resistance
|
no change
|
no change
|
eligible |
| 11. |
Pollute resistance |
≤15% |
6% |
eligible |
| 12. |
Acid resistance
|
no change |
no change |
eligible |
| 13. |
Alkaline resistance |
no change |
no change |
eligible |
| 14. |
Oil resistance |
no change |
no change |
eligible |
| 15. |
Solvent resistance |
no change |
no change |
eligible |
| 16. |
Scrub resistance |
no change when ≥10000 times |
no change when 10000 times |
eligible |
| 17. |
Face density |
specified value+-0.5kg/m2
|
6.0kg/m2
|
eligible |
| 18. |
Bending strength |
>=100MP2a
|
107.8MPa |
eligible |
| 19. |
Bending elastic modulus |
>=2.0x10(4)
|
2.7x10MPa
|
eligible |
| 20. |
Penetrating resistance |
>=9.0kN
|
9.3kN
|
eligible |
| 21. |
Shearing strength |
> =28.0Mpa
|
28.2Mpa
|
eligible |
| 22. |
180. peel strength |
>=7.0N/mm
|
8.1N/mm
|
eligible |
| 23. |
Temperature cycle resistance
|
no change |
no change |
eligible |
| 24. |
Thermal expansion conefficient |
<=4.00x10(-5)C(-1) |
1.59x10(-5)C(-1) |
eligible |
| 25. |
Heat distortion temperature |
>=105℃ |
107℃ |
eligible |
| 26. |
salt spray Resistance |
<=grade 2 |
1grade |
eligible |
| 27. |
Artificial aging-resistant carbon |
Color difference |
<=3.0
|
1.9 |
eligible |
|
Artificial degradation of gloss |
<=grade 2
|
grade1 |
eligible |
|
Weathering others |
grade 0 |
grade 0 |
eligible |
