| sensory test (外观) |
| Potassium permanganate consumption |
| Heavy metal as lead |
| Evaporation residue in 20%ethanol |
| Evaporation residue in 4% acetic acid |
| Evaporation residue in n-hexane |
| Colour migration test in oil |
| Colour migration test in marinate |
| Vinyl Chloride Monomer |




