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  1. CCOHS: Ammonia

    Aug 28, 2025 · Flammable Properties: FLAMMABLE GAS. High airborne concentrations can be ignited and pose a significant fire and explosion hazard, especially in a confined space. A large and intense …

  2. Ammonia On this page What are other names or identifying information for ammonia? What is the WHMIS classification? What are the most important things to know about ammonia in an …

  3. CCOHS: Features: Ammonia

    In one case, a leak occurred in the anhydrous ammonia refrigeration system in a cold storage warehouse. The fire fighters believed that they were dealing with stabilized conditions and that …

  4. CHEMINFO: Hydrogen sulfide - CCOHS

    Hydrogen sulfide is an extremely toxic, flammable gas. The combustion products of hydrogen sulfide (e.g., sulfur dioxide) are skin contact and inhalation hazards.

  5. Hot Work - ppwg.ccohs.ca

    Hot Work or “ Welding and allied processes ”, includes such activities as welding, brazing, cutting, soldering, and thermal bonding; where the work creates heat, sparks, and particles that can ignite …

  6. Exposure Limits to Chemical and Biological Agents

    The following are the references to the provincial and federal legislation where you would find the occupational exposure limits for the different jurisdictions in Canada. Since legislation is amended …

  7. Smoke-Free Places

    Most jurisdictions have restrictions on smoking in situations that involve working with flammable, combustible and/or explosive materials. Since these situations do not restrict tobacco smoking in …

  8. Personal Protective Equipment

    Personal Protective Equipment (PPE) is the last measure from the hierarchy of controls. The last line of defence that provides a barrier between the worker and the hazard, it is often used in combination …

  9. 301 Moved Permanently

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  10. HSDB: 2,4-TOLUENE DIISOCYANATE

    Substance will react with water (some violently) releasing flammable, toxic or corrosive gases and runoff. When heated, vapors may form explosive mixtures with air: indoors, outdoors and sewers …