| 1 Brevi periodi 2 Dilatazione 3 Meno di 20C 4 Meno di 30C 5 Meno di 100C 6 Media concentrazione |

| Bioprene® Marprene® | Sta-Pure Silicone | Neoprene | Butyl | PVC | Fluorel® | Chem.Sure® |
"Magnafloc" |
|
| y |
|
|
|
|
Magnesium ammonium sulphate |
|
| y |
| y |
|
|
Magnesium chloride | y | y | y | y | y | y |
|
Magnesium hydroxide | y |
| y | y | y | y |
|
Magnesium nitrate |
|
| y |
| y |
|
|
Magnesium oxide |
|
| y |
| y |
|
|
Magnesium salts | y | y | y | y | y | y |
|
Magnesium sulphate | y | y | y | y | y | y |
|
Malic acid | y |
| y | n | y | y |
|
Maleic anhydride |
|
|
| n |
| y |
|
Manganese salts | y | y |
|
| y | y |
|
Mascara |
|
|
|
| y |
|
|
Melamine |
| y |
|
|
|
|
|
Mercuric chloride | y |
| y | y | y | y |
|
Mercuric sulphate | y |
| y | y | y |
|
|
Mercury | y | y | y | y | y | y |
|
Mesityl oxide |
| n | n | y |
| n |
|
Methane gas |
| n | y | n |
| y |
|
Methanol |
|
|
|
|
|
| y |
Methyl alcohol (methanol) | y | y | y | y | y | n | y |
Methyl bromide |
| y | n |
| n | y |
|
Methyl chloride | n | n | n | n |
| y |
|
Methyl chlorobromate |
|
|
|
|
|
|
|
Methyl diphenyldiisocyanate |
| n | n | y | n |
|
|
Methyl ethyl ketone | n | n | n | y | n | n | y |
Methyl formate |
| y | y | y |
|
|
|
Methyl isobutyl ketone | n | n | n | n |
| n |
|
Methyl methacrylate |
| y | y | n |
| n |
|
Methyl pyrrolidone |
|
|
|
|
|
| y |
Methyl salicylate |
|
| n | y |
|
|
|
Methylated spirits |
|
| y |
| y |
|
|
Methylene chloride | n | n | n | n | n | n | y |
Milk | y | y | y | y | y | y |
|
Mineral oils | y | y | y | n |
| y | y |
Molasses | y |
| y |
| y |
|
|
Monochlorobenzene |
| n | n | n |
| y |
|
Mustard |
| y | y |
| y |
|
|
|
|