| Sostanza | Gomma butilica | Lattice | Polietilene clorurato |
Uretano |
PVC |
Nitrile |
Neoprene |
Altro |
| Barium Chloride | 1 | 1 |
1 |
1 |
1 |
1 |
||
| Barium Hydroxide | 1 | 1 |
1 |
1 |
1 |
1 |
||
| Barium Sulfate | 1 | 1 |
1 |
1 |
||||
| Barium Sulfide | 1 | 1 |
1 |
1 |
1 |
1 |
||
| Battery Acid (3 Molar) | 4 |
4 |
||||||
| Benzaldehyde | 1 |
4 |
3 |
4 |
4 |
4 |
3 |
|
| Benzene | 3 |
4 |
3 |
3 |
4 |
4 |
4 |
|
| Benzene Sulfonic Acid | 1 | 1 |
4 |
1 |
4 |
1 |
||
| Benzethonium Chloride | 1 |
1 |
||||||
| Benzoic Acid | 4 | 1 |
4 |
2 |
4 |
4 |
||
| Benzonitrile | 1 |
4 |
||||||
| Benzoyl Chloride | 1 |
4 |
3 |
|||||
| Benzyl Alcohol | 1 |
4 |
4 |
4 |
2 |
|||
| Benzyl Benzoate | 1 |
3 |
1 |
4 |
4 |
|||
| Benzyl Chloride | 4 | 4 |
4 |
4 |
3 |
4 |
||
| Berillium | 1 |
1 |
1 |
1 |
1 |
|||
| Bisphtalate | 1 |
1 |
2 |
|||||
| Black Sulfate Liquor | 1 |
3 |
1 |
2 |
2 |
|||
| Blast Furnace Gas | 1 |
4 |
1 |
4 |
4 |
|||
| Bleach Solutions | 1 |
4 |
1 |
4 |
3 |
|||
| Borax | 1 |
1 |
1 |
2 |
1 |
|||
| Bordeaux Mixture | 1 |
4 |
1 |
2 |
2 |
|||
| Boric Acid | 1 |
2 |
1 |
1 |
1 |
1 |
1 |
|
| Boron Trifluoride | 3 |
3 |
2 |
3 |
3 |
|||
| Brine | 1 |
2 |
1 |
1 |
1 |
|||
| Bromine | 4 | 1 |
4 |
1 |
4 |
4 |
||
| Bromoacetonitrile | 1 |
4 |
||||||
| Bromobenzene | 3 |
4 |
3 |
|||||
| Bromodichloromethane | 4 |
|||||||
| Bromoethanol (95%), 2- | 1 |
4 |
||||||
| Bromoform | 1 |
|||||||
| Bromo-1-Propanol (95%), 3- | 1 |
4 |
1 |
|||||
| Bromo-2-Propanol (70%), 1- | 1 |
3 |
1 |
|||||
| Bromopropionate | 1 |
3 |
1 |
|||||
| Butadiene, 1,3- | 1 |
4 |
2 |
3 |
2 |
4 |
2 |
|
| Butane | 4 | 2 |
1 |
2 |
1 |
1 |
||
| Butanone Peroxide, 2- | 3 |
|||||||
| Butter | 4 | 1 |
1 |
1 |
1 |
2 |
||
| Butyl Acetate | 2 |
4 |
4 |
4 |
4 |
4 |
4 |
|
| Butyl Acetyl Ricinoleate | 1 |
4 |
1 |
3 |
2 |
|||
| Butyl Acrylate | 4 |
3 |
4 |
4 |
3 |
4 |
||
| Butyl Alcohol | 3 |
1 |
4 |
2 |
1 |
3 |
||
| Butyl Alcohol, T- | 2 |
4 |
2 |
2 |
2 |
|||
| Butyl Amine | 4 |
2 |
4 |
4 |
3 |
4 |
||
| Butyl Benzoate | 2 |
4 |
2 |
4 |
4 |
|||
| Butyl Carbitol | 2 |
2 |
2 |
2 |
2 |
|||
| Butyl Catechol, T- | 1 |
4 |
1 |
4 |
2 |
|||
| Butyl Cellosolve (Butoxyethanol) | 3 |
2 |
4 |
2 |
4 |
3 |
||
| Butyl Mercaptan, T- | 2 |
4 |
2 |
4 |
4 |
|||
| Butyl Nitrite | 2 |
|||||||
| Butyl Oleate | 1 |
1 |
1 |
4 |
4 |
|||
| Butyl Stearate | 2 |
3 |
2 |
2 |
4 |
|||
| Butyl Toulene, P-T- | 2 |
2 |
3 |
|||||
| Butylamine, N- | 3 |
|||||||
| Butylamine, Sec- | 3 |
|||||||
| Butylamine, T- | 1 |
|||||||
| Butyltoluene, P-T- | 3 |
4 |
||||||
| Butyraldehyde | 1 |
2 |
4 |
4 |
4 |
3 |
||
| Butyric Acid | 4 | 1 |
1 |
1 |
4 |
4 |
||
| Butyrolactone | 3 |
4 |