Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 4 - Special Detailed Requirements Based on Use and Occupancy › Section 415 - GROUPS H-1, H-2, H-3, H-4 AND H-5 › Subsection 415.8 - Group H-5

Current through Register 1525, July 5, 2024
[F]
415.8.1
General.
In addition to the requirements set forth elsewhere in this
				code, Group H-5 shall comply with the provisions of Sections 415.8.1 through
				415.8.11 and the
International Fire Code.
[F]
415.8.2
Fabrication areas.
[F]
415.8.2.1
Hazardous materials in
				fabrication areas.
[F]
415.8.2.1.1
Aggregate quantities.
The aggregate quantities of hazardous
				materials stored and used in a single fabrication area shall not exceed the
				quantities set forth in Table 415.8.2.1.1. [F]
Exception:
The quantity limitations for any
				  hazard category in Table 415.8.2.1.1 shall not apply where the fabrication area
				  contains quantities of hazardous materials not exceeding the maximum allowable
				  quantities per
control area
established by Tables 307.1(1) and
				  307.1(2).
TABLE 415.8.2.1.1 QUANTITY LIMITS FOR HAZARDOUS
				  MATERIALS IN A SINGLE FABRICATION AREA IN GROUP H-5a
				  [F]
HAZARD CATEGORY
SOLIDS
(pounds per square
							 feet)
LIQUIDS
(gallons per square
							 feet)
GAS
(feet3 @ NTP/square feet)
PHYSICAL-HAZARD
							 MATERIALS
Combustible dust
Note b
Not Applicable
Not Applicable
Combustible fiber
Loose
Note b
Not Applicable
Not Applicable
Baled
Notes b, c
Combustible liquid
II
Not Applicable
0.01
Not Applicable
IIIA
0.02
IIIB
Not Limited
Combination Class I, II and IIIA
0.04
Cryogenic gas
Flammable
Not Applicable
Not Applicable
Note d
Oxidizing
1.25
Explosives
Note b
Note b
Note b
Flammable gas
Gaseous
Not Applicable
Not Applicable
Note d
Liquefied
Note d
Flammable liquid
IA
Not Applicable
0.0025
Not Applicable
IB
0.025
IC
0.025
Combination Class IA, IB and IC
0.025
Combination Class I, II and IIIA
0.04
Flammable solid
0.001
Not Applicable
Not Applicable
Organic peroxide
Not Applicable
Not Applicable
Unclassified detonable
Note b
Class I
Note b
Class II
0.025
Class III
0.1
Class IV
Not Limited
Class V
Not limited
Oxidizing gas
Gaseous
Not Applicable
Not Applicable
1.25
Liquefied
1.25
Combination of gaseous and liquefied
1.25
Oxidizer
Class 4
Note b
Note b
Not Applicable
Class 3
0.003
0.03
Class 2
0.003
0.03
Class 1
0.003
0.03
Combination
Class 1, 2, 3
0.003
0.03
Pyrophoric material
Note b
0.00125
Notes d and e
Unstable reactive
Class 4
Note b
Note b
Note b
Class 3
0.025
0.0025
Note b
Class 2
0.1
0.01
Note b
Class 1
Not Limited
Not Limited
Not Limited
Water reactive
Class 3
Note b
0.00125
Not Applicable
Class 2
0.25
0.025
Class 1
Not Limited
Not Limited
HEALTH-HAZARD MATERIALS
Corrosives
Not Limited
Not Limited
Not Limited
Highly toxic
Not Limited
Not Limited
Note d
Toxics
Not Limited
Not Limited
Note d
For SI: 1 pound per square foot = 4.882
							 kg/m2, 1 gallon per square foot = 40.7
							 L/m2, 1 cubic foot @ NTP/square foot = 0.305
							 m3 @ NTP/m2,
1 cubic foot = 0.02832 m3.
a. Hazardous
							 materials within piping shall not be included in the calculated quantities.
b. Quantity of hazardous materials in a single fabrication shall
							 not exceed the maximum allowable quantities per control area in Tables 307.1(1)
							 and 307.1(2).
c. Densely packed baled cotton that complies with
							 the packing requirements of ISO 8115 shall not be included in this material
							 class.
d. The aggregate quantity of flammable, pyrophoric, toxic
							 and highly toxic gases shall not exceed 9,000 cubic feet at NTP.
e. The aggregate quantity of pyrophoric gases in the building shall not exceed
							 the amounts set forth in Table 415.3.2.
415.8.2.1.2
Hazardous production
				materials.
The maximum quantities of hazardous production materials
				(HPM) stored in a single fabrication area shall not exceed the maximum
				allowable quantities per
control area
established by Tables
				307.1(1) and 307.1(2). [F]