About this chapter: Chapter 62 addresses the hazards associated with the storage, handling and use of organic peroxides and is intended to manage the fire and oxidation hazards of organic peroxides by preventing their uncontrolled release. These chemicals possess the characteristics of flammable or combustible liquids and are also strong oxidizers. This unusual combination of properties requires special storage and handling precautions to prevent uncontrolled release, contamination, hazardous chemical reactions, fires or explosions. The requirements of this chapter pertain to industrial applications in which significant quantities of organic peroxides are stored or used; however, smaller quantities of organic peroxides still pose a significant hazard and, therefore, must be stored and used in accordance with the applicable provisions of this chapter and Chapter 50.
Indoor storage of organic peroxides in amounts exceeding the maximum allowable quantity per control area indicated in Table 5003.1.1(1) shall be in accordance with Sections 5001, 5003, 5004 and this chapter.
Indoor storage of unclassified detonable organic peroxides that are capable of detonation in their normal shipping containers under conditions of fire exposure shall be stored in accordance with Chapter 56.
|ORGANIC PEROXIDE CLASS||MAXIMUM STORAGE QUANTITY (POUNDS) AT MINIMUM SEPARATION DISTANCE|
|Distance to buildings, lot lines, public streets, public alleys, public ways or means of egress||Distance between individual detached storage buildings or individual outdoor storage areas|
|50 feet||100 feet||150 feet||20 feet||75 feet||100 feet|
|II||100,000||200,000||No Limit||100,000a||No Limit||No Limit|
|III||200,000||No Limit||No Limit||200,000a||No Limit||No Limit|
|IV||No Limit||No Limit||No Limit||No Limit||No Limit||No Limit|
|V||No Limit||No Limit||No Limit||No Limit||No Limit||No Limit|
For SI: 1 foot = 304.8 mm, 1 pound = 0.454 kg.
An approved supervised smoke detection system in accordance with Section 907 shall be provided in rooms or areas where Class I, II or III organic peroxides are stored. Activation of the smoke detection system shall sound a local alarm.
Storage arrangements for organic peroxides shall be in accordance with Table 6204.1.7 and shall comply with all of the following:
|ORGANIC PEROXIDE CLASS||PILE CONFIGURATION||MAXIMUM QUANTITY PER BUILDING|
|Minimum distance to next pile
|Minimum distance to walls
|IV||16||10||3a, d||4b||No Requirement|
|V||No Requirement||No Requirement||No Requirement||No Requirement||No Requirement|
For SI: 1 foot = 304.8 mm.