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1. NFPA 400, Hazardous Materials Code Guy R. Colonna, PEEFCOG/DOE Chemical Management WorkshopMarch 16, 2010Washington, DC

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

3. Hazardous Chemicals Committee Committee scopeResponsible for classes of hazardous chemicals and codes for specificCommittee historyDocuments responsibleNFPA 400 � combined NFPA 430, 432, 434, 490NFPA 40

4. NFPA 400 Outline Chapter 1 � scope, purpose, applicationChapter 2 � referencesChapter 3 � definitionsChapter 4 � classificationChapter 5 � permissible storage and useChapter 6 � fundamental requirementsChapter 11 � 21 � material specific Chapter 7 is emergency planningChapter 8 is reservedChapter 9 is securityChapter 10 is performance-based optionChapter 7 is emergency planningChapter 8 is reservedChapter 9 is securityChapter 10 is performance-based option

5. NFPA 400 ScopeStorage, handling, use Ammonium nitrateCorrosive materialsFlammable solidsOrganic peroxide formulationsSolid and liquid oxidizersPyrophoric materialsToxic and highly toxic Unstable (reactive) solids and liquidsWater-reactive solids and liquidsCompressed gases and cryogenic fluids as defined by NFPA 55, Compressed Gases and Cryogenic Fluids Code

6. Application Does not apply toExplosivesDisplay or consumer fireworksCombustible metalsAerosolsFlammable and combustible liquids with no other physical or health hazardLiquefied petroleum gas Explosives � see 495Display or consumer fireworks � see 124Combustible metals � see 484Aerosols � see 30BFlammable and combustible liquids without other physical or health hazard � see 30LP Gas � see 58 and 59Explosives � see 495Display or consumer fireworks � see 124Combustible metals � see 484Aerosols � see 30BFlammable and combustible liquids without other physical or health hazard � see 30LP Gas � see 58 and 59

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

8. Plans Closure planEmergency action planHazardous Material Management Plan (HMMP)Hazardous Material Inventory Statement (HMIS)

9. Definition Review Control areaHazard materialHealth hazard materialPhysical hazard materialProtection levelMaximum 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 exceededActually a thresholdTriggers provisions of Protection Levels when hazard contents exceed the MAQ

15. High Hazard Contents High Hazard Level 1 Contents � detonationHigh Hazard Level 2 Contents � deflagration hazard or increased rate of burningHigh Hazard Level 3 Contents � readily support combustion or physical hazardsHigh Hazard Level 4 Contents � acute health hazards

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

17. Protection Level Example Protection Level 1If 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 systemsEgressSeparation of occupanciesVentilationExplosion controlSpill control and secondary containmentProtection level specific Outdoor storageUse, dispensing and handlingIndoorOutdoor

19. Example � Industrial Occupancy 5.2.1.11 Industrial OccupanciesMAQ of hazardous materials per control area in industrial occupancies specified in Table 5.2.1.1.3Requirements for storage and open and closed useOxidizers, peroxides, toxic, highly toxicFlammable and combustible liquids and explosives not regulated by NFPA 400 at this timePermitted to be increased where storage areas comply with 5.2.1.13

20. Wrap-up and questions Establishes the classification of hazardous materialsEstablishes threshold quantities permitted to be stored without additional protectionUsed by fire and building codesFuture editions will establish coordination with flammable and combustible liquidsQuestions