Table 24 to Subpart G of Part 63 - Typical Number of Columns as a Function of Tank Diameter for Internal Floating Roof Tanks With Column Supported Fixed Roofs a

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Table 24 to Subpart G of Part 63 - Typical Number of Columns as a Function of Tank Diameter for Internal Floating Roof Tanks With Column Supported Fixed Roofs^a

Tank diameter range (D in feet)	Typical number of columns, (N_C)
0 <D ≤85	1
85 <D ≤100	6
100 <D ≤120	7
120 <D ≤135	8
135 <D ≤150	9
150 <D ≤170	16
170 <D ≤190	19
190 <D ≤220	22
220 <D ≤235	31
235 <D ≤270	37
270 <D ≤275	43
275 <D ≤290	49
290 <D ≤330	61
330 <D ≤360	71
360 <D ≤400	81

                    
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Table 24 to Subpart G of Part 63 - Typical Number of Columns as a Function of Tank Diameter for Internal Floating Roof Tanks With Column Supported Fixed Roofs a

Table 24 to Subpart G of Part 63 - Typical Number of Columns as a Function of Tank Diameter for Internal Floating Roof Tanks With Column Supported Fixed Roofsa

Table 24 to Subpart G of Part 63 - Typical Number of Columns as a Function of Tank Diameter for Internal Floating Roof Tanks With Column Supported Fixed Roofs^a