Illinois Administrative Code › Title 62 - MINING › Part 200 - THE ILLINOIS EXPLOSIVES ACT › Subpart K - PROCEDURES FOR ADMINISTRATIVE HEARINGS › Appendix C - Table of Separation Distances of Ammonium Nitrate and Blasting Agents From Explosives or Blasting Agents[1]

Current through Register Vol. 48, No. 28, July 12, 2024
Donor weight
Minimum separation distance of
							 receptor when barricaded2 (ft.)
Minimum thickness of artificial
							 barricades5 (in.)
Pounds over
Pounds not over
Ammonium
							 nitrate3
Blasting
							 agent4
.001
100
3
11
12
100
300
4
14
12
300
600
5
18
12
600
1,000
6
22
12
1,000
1,600
7
25
12
1,600
2,000
8
29
12
2,000
3,000
9
32
15
3,000
4,000
10
36
15
4,000
6,000
11
40
15
6,000
8,000
12
43
20
8,000
10,000
13
47
20
10,000
12,000
14
50
20
12,000
16,000
15
54
25
16,000
20,000
16
58
25
20,000
25,000
18
65
25
25,000
30,000
19
68
30
30,000
35,000
20
72
30
35,000
40,000
21
76
30
40,000
45,000
22
79
35
45,000
50,000
23
83
35
50,000
55,000
24
86
35
55,000
60,000
25
90
35
60,000
70,000
26
94
40
70,000
80,000
28
101
40
80,000
90,000
30
108
40
90,000
100,000
32
115
40
100,000
120,000
34
122
50
120,000
140,000
37
133
50
140,000
160,000
40
144
50
160,000
180,000
44
158
50
180,000
200,000
48
173
50
200,000
220,000
52
187
60
220,000
250,000
56
202
60
250,000
275,000
60
216
60
275,000
300,000
64
230
60
NOTES TO TABLE OF RECOMMENDED SEPARATION
				  DISTANCES
OF AMMONIUM NITRATE AND BLASTING AGENTS
FROM EXPLOSIVES OR BLASTING AGENTS
NOTE 1 - Recommended separation distances to
				  prevent explosion of ammonium nitrate and ammonium nitrate-based blasting
				  agents by propagation from nearby stores of high explosives or blasting agents
				  referred to in the Table as the "donor". Ammonium nitrate, by itself, is not
				  considered to be a donor when applying this Table. Ammonium nitrate, ammonium
				  nitrate-fuel oil or combinations thereof are acceptors. If stores of ammonium
				  nitrate are located within the sympathetic detonation distance of explosives or
				  blasting agents, one-half the mass of the ammonium nitrate is to be included in
				  the mass of the donor.
NOTE 2 - When the ammonium nitrate and/or blasting
				  agent is not barricaded, the distances shown in the Table shall be multiplied
				  by six. These distances allow for the possibility of high velocity metal
				  fragments from mixers, hoppers, truck bodies, sheet metal structures, metal
				  containers, and the like that may enclose the donor. When storage is in
				  bullet-resistant magazines recommended for explosives or when the storage is
				  protected by a bullet-resistant wall, distances and barricade thicknesses in
				  excess of those prescribed in the American Table of Distances (Appendix A) are
				  not required.
NOTE 3 - The distances in the Table apply to
				  ammonium nitrate that passes the insensitivity test prescribed in the
				  definition of ammonium nitrate fertilizer promulgated by the Fertilizer
				  Institute and ammonium nitrate failing to pass the test shall be stored at
				  separation distances determined by competent persons and approved by the
				  authority having jurisdiction.
NOTE 4 - These distances apply to blasting agents
				  that pass the insensitivity test prescribed in regulations of USDOT and
				  ATF.
NOTE 5 - Earth, or sand dikes, or enclosures
				  filled with the prescribed minimum thickness of earth or sand are acceptable
				  artificial barricades. Natural barricades, such as hills or timber of
				  sufficient density that the surrounding exposures that require protection
				  cannot be seen from the donor when the trees are bare of leaves, are also
				  acceptable.
NOTE 6 - For determining the distances to be
				  maintained from inhabited buildings, passenger railways and public highways,
				  use the American Table of Distances for Storage of Explosive Materials
				  (Appendix A).