Section 9 provides detailed information about the physical and chemical properties of substances and mixtures. Under the new regulation, much more detail is required when describing the results of physico-chemical testing, including measurement methods and reference conditions.
For all properties listed:
| Property | Requirements | Special Considerations |
|---|---|---|
| Physical State | State at 20°C and 101.3 kPa | Specify solid, liquid, or gas |
| Color | Visual assessment | Use 'various' for color ranges |
| Odor | Combined with odor threshold | Qualitative description |
| Melting/Freezing Point | Include decomposition if applicable | Note if technically impossible for mixtures |
| Boiling Point | Initial point and range | Include decomposition or sublimation |
| Property | New Requirements | Reporting Guidelines |
|---|---|---|
| Flammability | Applies to solids, liquids, and gases | Indicate if substance is ignitable |
| Explosion Limits | Lower and upper limits required | Synonymous with flammability limits |
| Flash Point | For mixtures or lowest Fp substance | Specify test method used |
| Auto-ignition | For mixtures or lowest temperature substance | Include test conditions |