All you need to know about Flammable Liquids
Insights on Understanding GHS classification of Hazards in hazard communication.
Insights on Understanding GHS classification of Hazards in hazard communication.
Flammable liquids:
A flammable liquid means a liquid having a flash point of not more than 93 °C.
Flash point:
The flash point is the lowest possible temperature for vapor from a flammable liquid to ignite when triggered by an ignition source. As a result, the main risk of flammable liquids is released vapour. Highly volatile liquids, or those that evaporate quickly under different circumstances, provide the most risk.
Classification criteria:
The Globally Harmonised System (GHS) is a classification and labeling system that can help you responsibly store and handle your flammable liquids.
This system classifies flammable liquids into one of 4 categories – as defined by their flashpoint.
| Category | Criteria |
|---|---|
| 1 | Flash point < 23 °C and initial boiling point ≤ 35 °C |
| 2 | Flash point < 23 °C and initial boiling point > 35 °C |
| 3 | Flash point ≥ 23 °C and ≤ 60 °C |
| 4 | Flash point > 60 °C and ≤ 93 °C |
A flammable liquid is a liquid having a flash point of not more than 60 °C (140 °F), or any material in a liquid phase with a flash point at or above 37.8 °C (100 °F)
A combustible liquid is a liquid having a has a flash point above 60.5 °C (141 °F) and below 93 °C (200 °F).
Label elements for flammable liquids:
| Category 1 | Category 2 | Category 3 | Category 4 | |
|---|---|---|---|---|
| Symbol | Flame | Flame | Flame | No symbol |
| Signal word | Danger | Danger | Warning | Warning |
| Hazard statement | Extremely flammable liquid and vapour | Highly flammable liquid and vapour | Flammable liquid and vapour | Combustible liquid |
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