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NFPA 400, Hazardous Materials Code

Presentation Overview. NFPA Hazardous Chemicals CommitteeNFPA 400 scope, purpose, and applicationMaximum allowable quantity (MAQ) conceptProtection levels/hazardous occupanciesChemical specific provisionsExampleWrap-up and questions. Hazardous Chemicals Committee. Committee scopeResponsible f

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NFPA 400, Hazardous Materials Code

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    1. NFPA 400, Hazardous Materials Code Guy R. Colonna, PE EFCOG/DOE Chemical Management Workshop March 16, 2010 Washington, DC

    2. Presentation Overview NFPA Hazardous Chemicals Committee NFPA 400 scope, purpose, and application Maximum allowable quantity (MAQ) concept Protection levels/hazardous occupancies Chemical specific provisions Example Wrap-up and questions

    3. Hazardous Chemicals Committee Committee scope Responsible for classes of hazardous chemicals and codes for specific Committee history Documents responsible NFPA 400 – combined NFPA 430, 432, 434, 490 NFPA 40

    4. NFPA 400 Outline Chapter 1 – scope, purpose, application Chapter 2 – references Chapter 3 – definitions Chapter 4 – classification Chapter 5 – permissible storage and use Chapter 6 – fundamental requirements Chapter 11 – 21 – material specific Chapter 7 is emergency planning Chapter 8 is reserved Chapter 9 is security Chapter 10 is performance-based optionChapter 7 is emergency planning Chapter 8 is reserved Chapter 9 is security Chapter 10 is performance-based option

    5. NFPA 400 Scope Storage, handling, use Ammonium nitrate Corrosive materials Flammable solids Organic peroxide formulations Solid and liquid oxidizers Pyrophoric materials Toxic and highly toxic Unstable (reactive) solids and liquids Water-reactive solids and liquids Compressed gases and cryogenic fluids as defined by NFPA 55, Compressed Gases and Cryogenic Fluids Code

    6. Application Does not apply to Explosives Display or consumer fireworks Combustible metals Aerosols Flammable and combustible liquids with no other physical or health hazard Liquefied petroleum gas Explosives – see 495 Display or consumer fireworks – see 124 Combustible metals – see 484 Aerosols – see 30B Flammable and combustible liquids without other physical or health hazard – see 30 LP Gas – see 58 and 59 Explosives – see 495 Display or consumer fireworks – see 124 Combustible metals – see 484 Aerosols – see 30B Flammable and combustible liquids without other physical or health hazard – see 30 LP Gas – see 58 and 59

    7. Multiple Occupancy Application Where two or more classes of occupancy occur in the same building or structure Intermingled such that separate safeguards are impracticable Means of egress facilities, construction, protection, and other safeguards Comply with the most restrictive fire safety requirements of the occupancies involved

    8. Plans Closure plan Emergency action plan Hazardous Material Management Plan (HMMP) Hazardous Material Inventory Statement (HMIS)

    9. Definition Review Control area Hazard material Health hazard material Physical hazard material Protection level Maximum Allowable Quantity (MAQ)

    10. Control Area A building or portion of a building or outdoor area within which hazardous materials are allowed to be stored, dispensed, used, or handled in quantities not exceeding the maximum allowable quantities (MAQ).

    11. Health Hazard Material A chemical or substance classified as a toxic, highly toxic, or corrosive material in accordance with definitions set forth in this code.

    12. Physical Hazard Material A chemical or substance classified as a combustible liquid, explosive, flammable cryogen, flammable gas, flammable liquid, flammable solid, organic peroxide, oxidizer, oxidizing cryogen, pyrophoric, unstable (reactive), or water-reactive material.

    13. Protection Level A term used to describe a tier of building safety that exceeds the construction requirements for control areas to accommodate quantities of hazardous materials in excess of those permitted using the control area concept.

    14. Maximum Allowable Quantity Not a maximum Permitted to be exceeded Actually a threshold Triggers provisions of Protection Levels when hazard contents exceed the MAQ

    15. High Hazard Contents High Hazard Level 1 Contents – detonation High Hazard Level 2 Contents – deflagration hazard or increased rate of burning High Hazard Level 3 Contents – readily support combustion or physical hazards High Hazard Level 4 Contents – acute health hazards

    16. Control Areas and Protection Levels Hazardous materials shall be stored and used in control areas Indoor or outdoor Indoor occupancies complying with requirements for Protection Level 1, Protection Level 2, Protection Level 3, or Protection Level 4 Tables establish MAQ per control area for specific occupancy categories

    17. Protection Level Example Protection Level 1 If quantity of high hazard contents Level 1 exceed the MAQ for a specific occupancy per single control area then that occupancy must meet the Protection Level 1 requirements The MAQ is then able to be exceeded due to the increased protective measures associated with the Protection Level 1 provisions imposed

    18. Chapter 6 – Fundamental Requirements Fire protection systems Egress Separation of occupancies Ventilation Explosion control Spill control and secondary containment Protection level specific Outdoor storage Use, dispensing and handling Indoor Outdoor

    19. Example – Industrial Occupancy 5.2.1.11 Industrial Occupancies MAQ of hazardous materials per control area in industrial occupancies specified in Table 5.2.1.1.3 Requirements for storage and open and closed use Oxidizers, peroxides, toxic, highly toxic Flammable and combustible liquids and explosives not regulated by NFPA 400 at this time Permitted to be increased where storage areas comply with 5.2.1.13

    20. Wrap-up and questions Establishes the classification of hazardous materials Establishes threshold quantities permitted to be stored without additional protection Used by fire and building codes Future editions will establish coordination with flammable and combustible liquids Questions

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