What does a flammability rating of 2 mean?

Level 2 – Materials that easily undergo a violent reaction, but do not explosively decompose. ◆ Level 1 – Materials that are normally stable, but become explosive at elevated temperatures and pressure. ◆ Level 0 – Materials that are stable even under exposure to fire.

What is a Category 2 flammable liquid?

Flammable liquid is any liquid having a flashpoint at or below 199.4 °F (93 °C). Category 2 shall include liquids having flashpoints below 73.4 °F (23 °C) and having a boiling point above 95 °F (35 °C).

What is Class 2 flammable gas?

Division 2.1 – Flammable Gas – A material that is a gas at 20º C or below and. 101.3 kPa of pressure (ambient temperature and pressure), i.e. the material has a. boiling point of 20º C at sea level and: • Is ignitable when in a mixture of 13 percent or less by volume with air.

What does a health hazard rating of 2 mean?

0 for Health (blue), 2 for Flammability (red), and 0 for Instability/Reactivity (yellow). HMIS (taken from WIKIPEDIA) The Hazardous Materials Identification System (HMIS) is a numerical hazard rating that incorporates the use of labels with color-coded bars as well as training materials.

What is a low flashpoint?

Flash point is the lowest temperature at which a chemical can vaporize to form an ignitable mixture in air. A lower flash point indicates higher flammability. At the flash point, the vapor may cease to burn when the ignition source is removed.

What is considered flammable?

A material is considered flammable if it has a flash point of any temperature below 37.8 ºC. A material is considered combustible if it has a flash point higher than 37.8 ºC and below 93.3 ºC. Oppositely, flammables are more likely to form vapours in normal work environments, because their flash points are lower.

What are Class II and Class III liquids?

Class II liquids are combustible liquids that have a flash temperature point at or above 100 °F (37.8 °C) and below 140 °F (60 °C). Class IIIB liquids are combustible liquids that have a flash point at or above 200 °F (93 °C).

What is a Class 1 flammable?

Category 1 Flammable Liquids A Category 1 flammable liquid is any liquid with a closed-cup flash point below 73.4°F (23°C) AND with a boiling point below 95°F (35°C).

What are 2.1 flammable gases?

“Class 2.1 – Flammable Gas can be defined as gases at 20 °C and a standard temperature of 101.3 kPa are ignitable when in a mixture of 13% or less by volume in air.” Examples of flammable gases regularly used in workplaces include: LPG, acetylene, hydrogen, propane, propylene and methane.

What is a Class 2 Division 3?

Class 2 Gases. Class 3 Flammable Liquids. Class 4 Flammable solids; substances liable to spontaneous combustion; substances which, in contact with water, emit flammable gases.

What does this pictogram represent?

Each pictogram consists of a symbol on a white background framed within a red border and represents a distinct hazard(s). The pictogram on the label is determined by the chemical hazard classification.

What does Level 4 flammability hazards indicate?

Risk level 4: Very flammable gases or very volatile flammable liquids. Shut off flow and keep cooling water streams on exposed tanks or containers. Risk level 3: Materials that can be ignited under almost all normal temperature conditions. Water may be ineffective because of the low flash point.