• CHAPTER54
    CORROSIVE MATERIALS

    SECTION5401
    GENERAL

    5401.1 Scope.

    The storage and use of corrosive materials shall be in accordance with this chapter. Compressed gases shall also comply with Chapter 53.

    Exceptions:

    1. 1.Display and storage in Group M and storage in Group S occupancies complying with Section 5003.11.

    2. 2.Stationary storage battery systems in accordance with Section 608.

    3. 3.This chapter shall not apply to R-717 (ammonia) where used as a refrigerant in a refrigeration system (see Section 606).

    5401.2 Permits.

    Permits shall be required as set forth in Section 105.6.

    SECTION5402
    DEFINITION

    5402.1 Definition.

    The following term is defined in Chapter 2:

    CORROSIVE.

    SECTION5403
    GENERAL REQUIREMENTS

    5403.1 Quantities not exceeding the maximum allowable quantity per control area.

    The storage and use of corrosive materials in amounts not exceeding the maximum allowable quantity per control area indicated in Section 5003.1 shall be in accordance with Sections 5001, 5003 and 5401.

    5403.2 Quantities exceeding the maximum allowable quantity per control area.

    The storage and use of corrosive materials in amounts exceeding the maximum allowable quantity per control area indicated in Section 5003.1 shall be in accordance with this chapter and Chapter 50.

    SECTION5404
    STORAGE

    5404.1 Indoor storage.

    Indoor storage of corrosive materials in amounts exceeding the maximum allowable quantity per control area indicated in Table 5003.1.1(2), shall be in accordance with Sections 5001, 5003 and 5004 and this chapter.

    5404.1.1 Liquid-tight floor.

    In addition to the provisions of Section 5004.12, floors in storage areas for corrosive liquids shall be of liquid-tight construction.

    5404.2 Outdoor storage.

    Outdoor storage of corrosive materials in amounts exceeding the maximum allowable quantity per control area indicated in Table 5003.1.1(4) shall be in accordance with Sections 5001, 5003 and 5004 and this chapter.

    5404.2.1 Above-ground outside storage tanks.

    Aboveground outside storage tanks exceeding an aggregate quantity of 1,000 gallons (3785 L) of corrosive liquids shall be provided with secondary containment in accordance with Section 5004.2.2.

    5404.2.2 Distance from storage to exposures.

    Outdoor storage of corrosive materials shall not be within 20 feet (6096 mm) of buildings not associated with the manufacturing or distribution of such materials, lot lines, public streets, public alleys, public ways or means of egress. A 2-hour fire barrier without openings or penetrations, and extending not less than 30 inches (762 mm) above and to the sides of the storage area, is allowed in lieu of such distance. The wall shall either be an independent structure, or the exterior wall of the building adjacent to the storage area.

    SECTION5405
    USE

    5405.1 Indoor use.

    The indoor use of corrosive materials in amounts exceeding the maximum allowable quantity per control area indicated in Table 5003.1.1(2) shall be in accordance with Sections 5001, 5003 and 5005 and this chapter.

    5405.1.1 Liquid transfer.

    Corrosive liquids shall be transferred in accordance with Section 5005.1.10.

    5405.1.2 Ventilation.

    Where corrosive materials are dispensed or used, mechanical exhaust ventilation in accordance with Section 5005.2.1.1 shall be provided.

    5405.2 Outdoor use.

    The outdoor use of corrosive materials in amounts exceeding the maximum allowable quantity per control area indicated in Table 5003.1.1(4) shall be in accordance with Sections 5001, 5003 and 5005 and this chapter.

    5405.2.1 Distance from use to exposures.

    Outdoor use of corrosive materials shall be located in accordance with Section 5404.2.2.