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- Hazards Of Materials - UMass Boston
Water reactive - Chemicals that demonstrate unusual reactivity with water are designated by the letter W with a horizontal line through the center W Oxidizers - Chemicals that decompose readily under certain conditions to yield oxygen are designated by the symbol OX
- NFPA 704: Hazardous Materials Identification System - Grainger
The fourth space at the 6 o'clock position is reserved for indicating unusual reactivity with water It is designated by the letter W with a line through the center No special color is associated with this symbol
- Water reactive designation indicates that a chemical demonstrates . . .
A water-reactive chemical is indicated by a specific symbol, usually a letter 'W' with a horizontal line through it, to warn of its dangerous reaction with water
- Understanding NFPA Labeling - nscc. edu
Unusual reactivity with water This indicates a potential hazard using water to fight a fire involving this material When a compound is both water-reactive and an oxidizer, the W bar symbol should go in this quadrant and the OX warning is placed immediately below the NFPA diamond
- Water-reactive substances - Wikipedia
Water-reactive substances [1] are those that spontaneously undergo a chemical reaction with water, often noted as generating flammable gas [2] Some are highly reducing in nature [3] Notable examples include alkali metals, lithium through caesium, and alkaline earth metals, magnesium through barium
- The MSDS HyperGlossary: Water Reactive
Get your water-reactive DOT placards and labels from Safety Emporium Water reactive substances are dangerous when wet because they undergo a chemical reaction with water This reaction may release a gas that is either flammable or presents a toxic health hazard
- Water-Reactive | Environmental Health Safety Office | UMN Duluth
Certain chemicals react with water to produce heat and flammable or toxic gases and should be stored and handled so that they do not come in contact with liquid water or water vapor Water reactive compounds, "xxWS" (DDC), such as those listed below, require special handling
- Laboratory Testing: Classification of Water-Reactive Substances by the . . .
These tests identify water-reactive products and measure their gas emission rates, ensuring accurate hazard classification for the Transportation of Dangerous Goods (TDG) and GHS labelling Water-reactive substances, also known as Division 4 3 materials, can be inorganic or organic
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