Page 392 - 2018_IFC

HAZARDOUS MATERIALS—GENERAL PROVISIONS

5003.2.2.1 Design and construction. Piping, tubing, pancies where installed in accordance with Section
valves, fittings and related components used for hazard- 415.11.6.4 of the International Building Code for
ous materials shall be in accordance with the following: Group H-5 occupancies.
1. Piping, tubing, valves, fittings and related com- 5003.2.3 Equipment, machinery and alarms. Equip-
ponents shall be designed and fabricated from ment, machinery and required detection and alarm systems
materials that are compatible with the material to associated with the use, storage or handling of hazardous
be contained and shall be of adequate strength materials shall be listed or approved.
and durability to withstand the pressure, struc- 5003.2.4 Installation of tanks. Installation of tanks shall
tural and seismic stress and exposure to which be in accordance with Sections 5003.2.4.1 through
they are subject. 5003.2.4.2.1.
2. Piping and tubing shall be identified in accor- 5003.2.4.1 Underground tanks. Underground tanks
dance with ASME A13.1 to indicate the material used for the storage of liquid hazardous materials shall
conveyed. be provided with secondary containment. In lieu of pro-
3. Manual valves or automatic remotely activated viding secondary containment for an underground tank,
fail-safe emergency shutoff valves shall be an above-ground tank in an underground vault comply-
installed on supply piping and tubing and pro- ing with Section 5704.2.8 shall be permitted.
vided with ready access at the following loca- 5003.2.4.2 Above-ground tanks. Above-ground sta-
tions: tionary tanks used for the storage of hazardous materi-
3.1. The point of use. als shall be located and protected in accordance with
the requirements for outdoor storage of the particular
3.2. The tank, cylinder or bulk source.
material involved.
4. Manual emergency shutoff valves and controls
for remotely activated emergency shutoff valves Exception: Above-ground tanks that are installed in
shall be identified and the location shall have vaults complying with Section 5303.16 or 5704.2.8
access clearly visible and indicated by means of a shall not be required to comply with location and
sign. protection requirements for outdoor storage.
5003.2.4.2.1 Marking. Above-ground stationary
5. Backflow prevention or check valves shall be
provided where the backflow of hazardous mate- tanks shall be marked as required by Section 5003.5.
rials could create a hazardous condition or cause 5003.2.5 Empty containers and tanks. Empty containers
the unauthorized discharge of hazardous materi- and tanks previously used for the storage of hazardous
als. materials shall be free from residual material and vapor as
* defined by DOTn, the Resource Conservation and Recov-
Exceptions:
ery Act (RCRA) or other regulating authority or main-
1. Piping for inlet connections designed to pre- tained as specified for the storage of hazardous material.
vent backflow.
5003.2.6 Maintenance. In addition to the requirements of
2. Piping for pressure relief devices. Section 5003.2.3, equipment, machinery and required
5003.2.2.2 Additional regulations for supply piping detection and alarm systems associated with hazardous
for health-hazard materials. Supply piping and tub- materials shall be maintained in an operable condition.
ing for gases and liquids having a health-hazard rank- Defective containers, cylinders and tanks shall be removed
ing of 3 or 4 in accordance with NFPA 704 shall be in from service, repaired or disposed of in an approved man-
accordance with ASME B31.3 and the following: ner. Defective equipment or machinery shall be removed
from service and repaired or replaced. Required detection
1. Piping and tubing utilized for the transmission of and alarm systems shall be replaced or repaired where
highly toxic, toxic or highly volatile corrosive defective.
liquids and gases shall have welded, threaded or
flanged connections throughout except for con- 5003.2.6.1 Tanks out of service for 90 days. Station-
nections located within a ventilated enclosure if ary tanks not used for a period of 90 days shall be prop-
the material is a gas, or an approved method of erly safeguarded or removed in an approved manner.
drainage or containment is provided for connec- Such tanks shall have the fill line, gauge opening and
tions if the material is a liquid. pump connection secured against tampering. Vent lines
shall be properly maintained.
2. Piping and tubing shall not be located within cor-
ridors, within any portion of a means of egress 5003.2.6.1.1 Return to service. Tanks that are to be
required to be enclosed in fire-resistance-rated placed back in service shall be tested in an approved
construction or in concealed spaces in areas not manner.
classified as Group H occupancies. 5003.2.6.2 Defective containers and tanks. Defective
Exception: Piping and tubing within the space containers and tanks shall be removed from service,
repaired in accordance with approved standards or dis-
defined by the walls of corridors and the floor or
roof above or in concealed spaces above other occu- posed of in an approved manner.

2018 INTERNATIONAL FIRE CODE ® 359
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