Propellant, solid

=== IC HAZMAT BRIEFING === UN 0499 — Propellant, solid Class: 1 | Placard: Explosive 1.3C | ERG Guide: 112 Appearance: Solid material, typically rubbery or hard composition ranging from gray to black in color. Often formulated as composite mixtures of oxidizers (ammonium perchlorate) and fuel binders (HTPB, PBAN). No distinct odor unless burning. Water Reactivity: No significant reaction with water; components may be water-reactive depending on formulation Extinguishing: Do not use water or foam; use dry chemical, sand, or smother with inert material; water may intensify burning PPE: Level A or B minimum with SCBA required; structural firefighting gear inadequate for close proximity; protect from radiant heat and potential fragment projection Isolation: ERG 112: Initial isolation 500m in all directions; if fire or container involved in fire, evacuate 1600m radius; risk of intense heat and fragment projection rather than mass explosion — Key Hazards — • Fire and burning hazard — not mass explosion. • Intense heat and possible fragment projection. • May deflagrate and initiate other materials. — First Actions — • CALL 911. Then call emergency response telephone number on shipping paper. • Isolate area; stage upwind — fire and fragment hazard. • Request Hazmat + law enforcement. • Control ignition sources; deny entry. SOURCE: allfirefighter.com/hazmat/un/0499 | Always use current ERG + SOP/SOGIC BRIEFING

UN0499 Propellant, solid Cls1 ERG112 | ERG 112: Initial isolation 500m in all directions; if fire or container involved | allfirefighter.com/hazmat/un/0499SMS / 160 CHAR