Periodic Table Database Schema - v0.6.3
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    Standard ratings for the NFPA 704 "hazard diamond" used by emergency responders.

    type NFPA = {
        fire: NFPACode;
        health: NFPACode;
        reactivity: NFPACode;
        specific?: NFPANotice;
    }
    Index

    Properties

    fire: NFPACode

    Flammability rating (0-4).

    health: NFPACode

    Health hazard rating (0-4).

    reactivity: NFPACode

    Instability/reactivity rating (0-4).

    specific?: NFPANotice

    Special hazards like water reactivity or oxidizing properties.