Flammable Liquid Storage Guide
Storage Guide for Flammable & Combustible Liquids
(This guide is not intended to be all-inclusive.)
Storage Grouping by Flash Point
|
NFPA Fire Diamond Number
|
NFPA 30 Classifications
|
Fire Area Storage Limits
|
Maximum Storage
Outside Fire Cabinet
|
Maximum Storage
Inside Fire Cabinet*
|
Group I
(Flammable or Combustible liquids with a flash point of <140°F)
|
4
3
2 with F.P. <140°F
|
IA
IB
IC
II
|
10 Gallons in containers
or
25 gallons in safety cans
|
60 Gallons
|
Group II
(Combustible liquid with a flash point of ³ 140° F and < 200°F)
|
2 with
F.P. ³ 140°F
And < 200°F
|
IIIA
|
60 Gallons
|
120 Gallons minus
the # of gallons of
Group I liquids in
Cabinet
|
Group III
(Combustible liquid with a flash point of ³ 200° F)
|
1
|
IIIB
|
No limit
|
No limit
|
* Maximum of three fire storage cabinets per fire area.
|
1. A maximum of 180 gallons of flammable and combustible liquids with a flash point of < 140°F can be stored in a fire area (room with one-hour fire rated walls and self closing 20-minute fire rated door). This amount must be stored in the following manner:
- Not more than 10 gallons located outside a flammable storage cabinet.
- Not more than 60 gallons in a flammable storage cabinet.
- Not more than 3 flammable storage cabinets per fire area.
2. In addition to the 180 gallons as stated above, a maximum of 60 gallons of combustible liquids with a flash point ³ 140°F and <200°F can be stored outside of a flammable liquids cabinet.
3. There is no gallon limit to combustible liquids with a flash point of ³ 200°F in a fire area.
NFPA Ratings for Common Solvents
|
Chemical Name
|
Flash Point degrees Fahrenheit
|
NFPA 30
Classification
|
NFPA
Fire Diamond Number
(in the red quadrant)
|
Acetaldehyde
Acetone
Acetonitrile
Acrolein
Acrylonitrile
Benzene
Carbon Disulfide
Chloromethyl Methyl Ether
Cyclohexane
1,2 Dimethoxyethane
Dimethyl Dichloro Silane
Dioxane,1-4
Ethyl Acetate
Ethyl Alcohol
Ethyl Ether
Ethylene Glycol
Formaldehyde
Glycerol
Heptane
Hexane
Iso Propyl Alcohol
Methanol
Methy Benzoate
Methyl Cyclohexane
Methyl Ethyl Ketone
Methylsulfoxide
Morpholine
Naphtha
Nickel Carbonyl
Pentane
Petroleum Ether
Phenethyl Alcohol
Pyridine
Tetrahydrofuran
Toluene
Trimethylamine
Turpentine
Xylene
|
-38
-5
42
-15
32
12
-22
59
1
29
<70
54
24
55
-49
232
140
320
25
-7
53
54
181
25
16
203
98
28
<-4
<-40
<0
205
68
1
40
-14.8
95
81
|
IA
IB
IB
IB
IB
IB
IB
IB
IB
IB
IB
IB
IB
IB
IA
IIIB
IIIA
IIIB
IB
IB
IB
IB
IIIA
IB
IB
IIIB
IC
IB
IB
1A
1A
IIIB
IB
IB
IB
IA
IC
IC
|
4
3
3
3
3
3
3
3
3
3
3
3
3
3
4
1
2
1
3
3
3
3
2
3
3
1
3
3
3
4
4
1
3
3
3
4
3
3
|