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  2. HAZMAT Class 6 Toxic and infectious substances - Wikipedia

    en.wikipedia.org/wiki/HAZMAT_Class_6_Toxic_and...

    In the absence of LC 50 data on the poisonous (toxic) constituent substances, the mixture may be assigned a packing group and hazard zone based on simplified threshold toxicity tests. When these threshold tests are used, the most restrictive packing group and hazard zone must be determined and used for the transportation of the mixture.

  3. Waverly, Tennessee, tank car explosion - Wikipedia

    en.wikipedia.org/wiki/Waverly,_Tennessee,_tank...

    The Waverly explosion, along with other accidents involving railroad derailments and hazardous materials (the most infamous being the train derailment in Mississauga, Ontario, Canada on November 10, 1979) resulted in a major rework of how authorities deal with such emergencies. Tennessee and the TOCD created a set of standards and the Tennessee ...

  4. Emergency Response Guidebook - Wikipedia

    en.wikipedia.org/wiki/Emergency_Response_Guidebook

    The Emergency Response Guidebook: A Guidebook for First Responders During the Initial Phase of a Dangerous Goods/Hazardous Materials Transportation Incident (ERG) is used by emergency response personnel (such as firefighters, paramedics and police officers) in Canada, Mexico, and the United States when responding to a transportation emergency involving hazardous materials.

  5. NFPA 704 - Wikipedia

    en.wikipedia.org/wiki/NFPA_704

    NFPA 704 safety squares on containers of ethyl alcohol and acetone. "NFPA 704: Standard System for the Identification of the Hazards of Materials for Emergency Response" is a standard maintained by the U.S.-based National Fire Protection Association.

  6. Wilson County Schools removes 425 book titles to comply with ...

    www.aol.com/wilson-county-schools-removes-425...

    Wilson County Schools has removed about 425 book titles from its libraries to comply with new state law that went into effect July 1 prohibiting books and materials with references to sex and ...

  7. Hazard and operability study - Wikipedia

    en.wikipedia.org/wiki/Hazard_and_operability_study

    Where a guide word is meaningfully applicable to a parameter (e.g., "no flow", "more temperature"), their combination should be recorded as a credible potential deviation from the design intent that requires review. The following table gives an overview of commonly used guideword-parameter pairs (deviations) and common interpretations of them.

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