% Acidity | PV | K232 | K270 | |||||||||||||
Glass | PET | HDPE | PLA | Glass | PET | HDPE | PLA | Glass | PET | HDPE | PLA | Glass | PET | HDPE | PLA | |
% Acidity | - | - | - | - | 0.74** | 0.67** | 0.95** | 0.57* | 0.49 | 0.58* | 0.87** | 0.56* | 0.55* | 0.45 | 0.90** | 0.54* |
PV | 0.74** | 0.67** | 0.95** | 0.57* | - | - | - | - | 0.79** | 0.90** | 0.86** | 0.96** | 0.67** | 0.69** | 0.81** | 0.97** |
K232 | 0.49 | 0.58* | 0.87** | 0.56* | 0.79** | 0.90** | 0.86** | 0.96** | - | - | - | - | 0.86** | 0.88** | 0.88** | 0.96** |
K270 | 0.55* | 0.45 | 0.90** | 0.54* | 0.67** | 0.68** | 0.81** | 0.97** | 0.86** | 0.88** | 0.88** | 0.96** | - | - | - | - |