TITLE 62: MINING
CHAPTER I: DEPARTMENT OF NATURAL RESOURCES
PART 200 THE ILLINOIS EXPLOSIVES ACT
SECTION 200.APPENDIX C TABLE OF SEPARATION DISTANCES OF AMMONIUM NITRATE AND BLASTING AGENTS FROM EXPLOSIVES OR BLASTING AGENTS1



 

Section 200.APPENDIX C   Table of Separation Distances of Ammonium Nitrate and Blasting Agents From Explosives or Blasting Agents1

 

 

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).

 

(Source:  Amended at 48 Ill. Reg. 9600, effective June 24, 2024)