Page 375 - 2018_IFC

HIGHER EDUCATION LABORATORIES

3805.4 Percentage of maximum allowable quantity per 3806.2 Hazardous materials storage and use. Storage and
control area. The percentage of maximum allowable quanti- use of hazardous materials within control areas in new and
ties per control area of hazardous materials shall be permit- existing laboratories equipped with an automatic sprinkler
ted to be increased in accordance with Table 3805.4. system shall be in accordance with this section and Chapters
50 through 67, as applicable.
Exception: Existing laboratories in buildings equipped
SECTION 3806
EXISTING SPRINKLERED LABORATORIES throughout with an automatic sprinkler meeting require-
ments for laboratory suites are permitted to comply with
3806.1 Scope. Storage and use of hazardous materials in Section 3804.
existing laboratories within buildings equipped throughout 3806.2.1 Percentage of maximum allowable quantities
with an automatic sprinkler system in accordance with Sec- per control area. The percentage of maximum allowable
tion 903.3.1.1 shall be in accordance with Section 3803 and quantities per control area of hazardous materials shall be
with Chapters 50 through 67, as applicable, except as modi- in accordance with Table 3806.2.1.
fied by this section.

TABLE 3805.4
DESIGN AND NUMBER OF CONTROL AREAS IN EXISTING NONSPRINKLERED LABORATORIES
PERCENTAGE OF THE MAXIMUM ALLOWABLE NUMBER OF CONTROL FIRE-RESISTANCE RATING FOR
FLOOR LEVEL a b, c, d
QUANTITY PER CONTROL AREA AREAS PER FLOOR FIRE BARRIERS IN HOURS
Higher than 9 5 1 2 c
7–9 10 2 2 c
Above grade 4–6 25 2 2 c
plane
3 75 2 1
1–2 100 4 1
1 100 3 1
Below grade 2 75 2 1
plane
Lower than 2 Not Allowed Not Allowed Not Allowed
a. Percentages shall be of the maximum allowable quantity per control area shown in Tables 5003.1.1(1) and 5003.1.1(2), excluding all increases allowed in the
footnotes to those tables.
b. Fire barriers shall include walls, floors and ceilings necessary to provide separation from other portions of the building.
c. Vertical fire barriers separating control areas from other spaces on the same floor are permitted to be 1-hour fire-resistance rated.
d. See Section 414.2.4 of the International Building Code for additional requirements.

TABLE 3806.2.1
DESIGN AND NUMBER OF CONTROL AREAS IN EXISTING SPRINKLERED LABORATORIES
PERCENTAGE OF THE MAXIMUM NUMBER OF CONTROL FIRE-RESISTANCE RATING
FLOOR LEVEL a b, d
ALLOWABLE QUANTITY PER CONTROL AREA AREAS PER FLOOR FOR FIRE BARRIERS IN HOURS
21+ 5 1 2 c
11–20 10 1 2 c
Above grade 7–10 25 2 2 c
plane 4–6 50 2 2 c
3 75 3 1
1–2 100 4 1
1 100 3 1
Below grade 2 75 2 1
plane
Lower than 2 Not Allowed Not Allowed Not Allowed
a. Percentages shall be of the maximum allowable quantity per control area shown in Tables 5003.1.1(1) and 5003.1.1(2), with all increases allowed in the
footnotes to those tables.
b. Fire barriers shall include walls, floors and ceilings necessary to provide separation from other portions of the building.
c. Vertical fire barriers separating control areas from other spaces on the same floor are permitted to be 1-hour fire-resistance rated.
d. See Section 414.2.4 of the International Building Code for additional requirements.

342 2018 INTERNATIONAL FIRE CODE ®
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