| Sostanza | Gomma butilica | Lattice | Polietilene clorurato |
Uretano |
PVC |
Nitrile |
Neoprene |
Altro |
| Paint Thinner, Duco | 3 |
4 |
3 |
4 |
4 |
|||
| Palmitic Acid | 4 |
1 |
1 |
1 |
3 |
2 |
||
| PCB (Aroclor 1254 - 50%) | 4 |
4 |
2 |
|||||
| Pentachlorophenol | 4 |
4 |
1 |
4 |
||||
| Pentane, N- | 4 |
4 |
4 |
4 |
4 |
Preferibile Neoprene |
||
| Pentanol, 1- | 1 |
2 |
1 |
|||||
| Peracetic Acid (40% in H2O) | 1 |
|||||||
| Perchloric Acid | 3 |
X |
4 |
X |
2 |
2 |
||
| Perchloroethylene | 4 |
4 |
3 |
2 |
4 |
2 |
3 |
|
| Perchloromethane | 4 |
3 |
2 |
|||||
| Petroleum-Above 250 | 4 |
4 |
4 |
4 |
3 |
4 |
||
| Petroleum-Below 250 | 4 |
1 |
1 |
3 |
1 |
2 |
||
| Phenol (>70%) | 1 |
3 |
1 |
3 |
3 |
2 |
2 |
|
| Phenolphthalein | 1 |
1 |
1 |
|||||
| Phenyl Benzene | 2 |
4 |
2 |
4 |
4 |
|||
| Phenyl Ethyl Ether | 2 |
4 |
2 |
4 |
4 |
|||
| Phenyl Hydrazine | X |
X |
X |
4 |
4 |
|||
| Phenylamine | 1 |
3 |
||||||
| Phorone | X |
4 |
X |
4 |
4 |
|||
| Phosphoric Acid (20%) | 2 |
1 |
1 |
1 |
1 |
2 |
||
| Phosphoric Acid (45%) | 3 |
1 |
1 |
1 |
2 |
2 |
||
| Phosphorous Oxychloride | 4 |
4 |
4 |
|||||
| Phosphorous Trichloride | 4 |
1 |
1 |
1 |
4 |
4 |
||
| Pickling Solution | 1 |
4 |
1 |
4 |
4 |
|||
| Picric Acid | 4 |
1 |
2 |
1 |
2 |
1 |
||
| Pimelic Ketone | 1 |
4 |
||||||
| Pine Oil | 2 |
2 |
2 |
2 |
4 |
|||
| Pinene | 2 |
2 |
2 |
2 |
3 |
|||
| Piperidene | 3 |
4 |
3 |
4 |
4 |
|||
| Polychlorinated Biphenyl | 4 |
1 |
||||||
| Polyvinyl Acetate Emulsion | 1 |
2 |
1 |
1 |
2 |
|||
| Potassium Acetate | 1 |
X |
1 |
2 |
2 |
|||
| Potassium Chloride | 1 | 1 |
1 |
1 |
1 |
1 |
||
| Potassium Cupro Cyanide | 1 |
1 |
1 |
1 |
1 |
|||
| Potassium Cyanide | 1 | 1 |
1 |
1 |
1 |
1 |
||
| Potassium Dichromate | 2 | 1 |
2 |
1 |
1 |
1 |
||
| Potassium Hydroxide | 3 |
1 |
2 |
1 |
1 |
2 |
||
| Potassium Iodide | 1 |
1 |
||||||
| Potassium Nitrate | 1 | 1 |
1 |
1 |
1 |
1 |
||
| Potassium Sulfate | 1 | 1 |
1 |
1 |
1 |
1 |
||
| Promethazine | 3 |
1 |
2 |
|||||
| Propane | 4 | 3 |
3 |
3 |
1 |
2 |
||
| Propanol 70% | 4 |
3 |
2 |
|||||
| Propanolamine | 3 |
1 |
||||||
| Propanone, 2- | 1 |
4 |
||||||
| Propiolactone | 3 |
|||||||
| Propionaldehyde | 1 |
4 |
||||||
| Propionitrile | 4 |
|||||||
| Propylacetate | 2 |
4 |
3 |
4 |
3 |
3 |
4 |
|
| Propylacetone | 2 |
4 |
2 |
4 |
4 |
|||
| Propylamine | 4 |
|||||||
| Propyl Alcohol | 1 |
2 |
1 |
1 |
1 |
|||
| Propyl Nitrate | X |
X |
X |
4 |
4 |
|||
| Propylene | 1 |
X |
1 |
4 |
4 |
|||
| Propylene Dichloride | 3 |
|||||||
| Propylene Oxide, 1,3- | 3 |
4 |
X |
4 |
X |
4 |
4 |
|
| Propylenediamine | 1 |
4 |
3 |
1 |
||||
| Propylene Glycol | 1 |
2 |
||||||
| Propylmethacrylate, N- | 1 |
3 |
||||||
| Pyranol | 3 |
2 |
3 |
1 |
4 |
|||
| Pyridine | 1 |
4 |
3 |
4 |
4 |
4 |
4 |
|
| Pyrrole | 3 |
X |
3 |
4 |
4 |
|||
| Quinones | 3 |
2 |
4 |
2 |
3 |
3 |