| Property | Specification | Test Method |
|---|---|---|
| Appearance | Colorless gas or liquid (depending on the specific chloro methane) | Visual |
| Assay (as specific chloro methane) | Min % by weight (e.g., Min 99.5% for Chloromethane) | Varies (e.g., Gas Chromatography) |
| Boiling Point | Specific value depending on the chloro methane | ASTM D86 |
| Melting Point | Specific value depending on the chloro methane (may not apply for gases) | ASTM D87 |
| Density (at 20°C) | Specific value depending on the chloro methane | Density meter |
| Refractive Index (at 20°C) | Range or specific value | Refractometer |
| Water Content | Max % by weight (typically low) | Karl Fischer Titration |
| Acidity (as HCl) | Max ppm (typically low) | Titrimetry |
| Chlorides (as Cl) | May not be applicable (already a chlorine-containing compound) | – |
| Non-volatile Residue | Max % by weight (typically very low) | Gravimetry |
| Flash Point | Specific value depending on the chloro methane (may be flammable) | Pensky-Martens Closed Cup |
