Standard Operating Procedure for Chemical Handling and Storage

§F903.3.1.1. Where Note f also applies, the increase for both notes shall be 
applied accumulatively. 
f.
Maximum allowable quantities shall be increased 100 percent when stored in 
approved storage cabinets, gas cabinets, or exhausted enclosures. Where Note e 
also applies, the increase for both notes shall be applied accumulatively. 
g.
A single cylinder containing 150 pounds or less of anhydrous ammonia in a single 
control area in a non-sprinklered building shall be considered a maximum 
allowable quantity. Two cylinders, each containing 150 pounds or less in a 
single control area shall be considered a maximum allowable quantity provided the 
building is equipped throughout with an automatic sprinkler system in accordance 
with §F903.3.1.1. 
h.
Allowed only when stored in approved exhausted gas cabinets or exhausted 
enclosures. 
i.
Quantities in parenthesis indicate quantity units in parenthesis at the head of 
each column. 
j.
For gallons of liquids, divide the amount in pounds by 10 in accordance with 
§F2703.1.2. 

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Standard Operating Procedure for Chemical Handling and Storage 
EHS-00005 R12

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DCN1216 
CNSE Confidential
Page 42 of 43 
Appendix G 
Table IV: (TABLE F2703.8.3.2)
Design and Number of Control Areas
Floor
Level
Percentage Of
The Maximum
Allowable
Quantity Per
Control Area
a 
Number Of
Control
Areas Per
Floor
b 
Fire-Resistance
Rating For Fire
Barriers In
Hours
c 
Above 
grade 
Higher 
Than 9 
5 
1 
2 
7-9 
5 
2 
2 
6 
12.5 
2 
2 
5 
12.5 
2 
2 
4 
12.5 
2 
2 
3 
50 
2 
1 
2 
75 
3 
1 
1 
100 
4 
1 
Below 
grade 
1 
75 
3 
1 
2 
50 
2 
1 
Lower 
than 2 
Not Applicable 
Not Applicable 
Not Applicable