Indiana Administrative Code › Title 675 - FIRE PREVENTION AND BUILDING SAFETY COMMISSION › Article 22 - FIRE PREVENTION CODES › Rule 2.5 - 2014 Indiana Fire Code › Section 2.5-51 - Appendix VI-F; recommended separation distances for explosives

Current through July 10, 2024
Authority: IC
				  22-13-2-2
Affected: IC 22-11-14; IC 22-12-7; IC 22-13; IC 22-14; IC
				  36-8-17
Sec. 51.
(a)
				Portions of this work are reproduced from the 1997 edition of the Uniform Fire
				Code, Appendix VI-F, copyright© 1997, with the permission of the
				publisher, the International Conference of Building Officials. ICBO assumes no
				responsibility for the accuracy or completion of summaries provided
				therein.
(b) Add Appendix VI-F to
				read as follows:
APPENDIX VI-F
RECOMMENDED SEPARATION DISTANCES FOR EXPLOSIVE MATERIALS (See
				  Chapter 33)
The following information is provided as reference
				  information for application of Chapter 56 and IC 22-11-14.
The information provided in Section 1 is excerpted from
				  federal regulations in 49 CFR, Parts 171-173. A discussion of the new
				  regulations is also provided.
Table A-VI-F-5 is reprinted with permission of the Institute
				  of Makers of Explosives with the provision that the entire table, complete with
				  all explanatory footnotes, is printed. Table A-VI-F-5 is used for magazines
				  containing high explosives or a combination of high explosives and low
				  explosives, and for magazines containing blasting agents.
TABLE A-VI-F-2 - DEFINITIONS FOR DIVISIONS OF CLASS 1
				  (EXPLOSIVE) MATERIALS DIVISION DEFINITION
TABLE A-VI-F-2 - DEFINITIONS FOR DIVISIONS
							 OF CLASS 1 (EXPLOSIVE) MATERIALS
DIVISION
DEFINITION
1.1
Explosives that have a mass hazard explosion. A mass
							 explosion is one that affects almost the entire load instantaneously. (Examples
							 include dynamite, cap-sensitive water gels, slurries, emulsions, and cast
							 boosters.)
1.2
Explosives that have a projection hazard but not a
							 mass explosion hazard. (Examples include ammunition, projectiles, and bombs.)
1.3
Explosives that have a fire hazard and either a minor
							 blast hazard or a minor projection hazard or both, but not a mass explosion
							 hazard. (Examples include some propellants, some fireworks, and flares.)
1.4
Explosive devices that present a minor explosion
							 hazard. External fire must not cause virtually instantaneous explosion of
							 almost the entire contents of the package. (Examples include some detonators
							 and detonating cords, safety fuse, electric squibs, igniters, igniting cord,
							 and some fireworks.)
1.5
Very insensitive explosives. This division is
							 comprised of substances that have a mass explosion hazard but are so
							 insensitive that there is very little probability of initiation or of
							 transition from burning to detonation under normal conditions of transport.
							 (Examples include blasting agents.)
1.6
Extremely incentive articles that do not have a mass
							 explosion hazard. This division is comprised of articles that contain only
							 extremely insensitive detonation substances and that demonstrate a negligible
							 probability of accidental initiation or propagation. (This division is not
							 commonly used for commercial explosives.)
FIRE PREVENTION CODES
TABLE A-VI-F-3 - COMPARISON OF OLD TO
							 CURRENT EXPLOSIVES CLASSIFICATIONS
CLASS A EXPLOSIVES
May be either DIVISION 1.1 or 1.2 depending on the
							 material
CLASS B EXPLOSIVES
May be either DIVISION 1.2 or 1.3 depending on the
							 material
CLASS C EXPLOSIVES
DIVISION 1.4
BLASTING AGENTS
DIVISION 1.5
(NO APPLICABLE CLASS)
DIVISION 1.6
TABLE A-VI-F-4 - EXPLOSIVES COMPATIBILITY
							 GROUPS
DESCRIPTION OF SUBSTANCES OR ARTICLE TO BE CLASSIFIED
COMPATIBILITY GROUP
CLASSIFICATION CODE
Primary explosive substance.
A
1.1A
Article containing a primary explosive substance and
							 not containing two or more effective protective substances.
B
1.1B, 1.2B, 1.4B
Propellant explosive substance or other deflagrating
							 explosive substance or article containing such explosive substance.
C
1.1C, 1.2C, 1.3C, 1.4C
Secondary detonating explosive substance or black
							 powder or article containing a secondary detonating explosive substance, in
							 each case without means of initiation and without a propelling charge, or
							 article containing a primary explosive substance and containing two or more
							 effective protective features.
D
1.1D, 1.2D, 1.4D, 1.5D
Article containing a secondary detonating explosive
							 substance, without means of initiation, with a propelling charge (other than
							 one containing flammable liquid or hypergolic liquid).
E
1.1E, 1.2E, 1.4E
Article containing a secondary detonating explosive
							 substance with its means of initiation, with a propelling charge (other than
							 one containing flammable liquid or hypergolic liquid) or without a propelling
							 charge.
F
1.1F, 1.2F, 1.3F, 1.4F
Pyrotechnic substance or article containing a
							 pyrotechnic substance, or article containing both an explosive substance and an
							 illuminating, incendiary, tear-producing or smoke-producing substance (other
							 than a water-activated article or one containing white phosphorus, phosphide,
							 or flammable liquid or gel or hypergolic liquid).
G
1.1G, 1.2G, 1.3G, 1.4G
Article containing both an explosive substance and
							 white phosphorus.
H
1.2H,1.3H
Article containing both an explosive substance and
							 flammable liquid or gel.
J
1.1J, 1.2J, 1.3J
Article containing both an explosive substance and a
							 toxic chemical agent.
K
1.2K, 1.3K
Explosive substance or article containing an explosive
							 substance and presenting a special risk (e.g., due to water-activation or
							 presence of hypergolic liquids, phosphides, or pyrophoric substances) needing
							 isolation of each type.
L
1.1L, 1.2L, 1.3L
Articles containing only extremely insensitive
							 detonating substances.
N
1.6N
Substance or article so packed or designed that any
							 hazardous effects arising from accidental functioning are limited to the extent
							 that they do not significantly hinder or prohibit firefighting or other
							 emergency response efforts in the immediate vicinity of the package.
S
1.4S
TABLE A-VI-F-5 - AMERICAN TABLE OF DISTANCES FOR STORAGE OF
				  EXPLOSIVE MATERIALS As Revised and Approved by the Institute of Makers of
				  Explosives - June 199114
QUANTITY OF
EXPLOSIVE
MATERIALS123415
Inhabited
								Buildings9
Public Highways with
Traffic Volume of less
than 3,000 Vehicles per
Day
Passenger Railways -
Public Highways with
Traffic Volume of more
than 3,000 Vehicles
/Day1011
Separation of Magazines 
								512
Pounds Over
Pounds Not Over
Barricaded6
														7
Unbarricad ed
Barricade
d678
Unbarricad ed
Barricade
d678
Unbarricade d
Barricade
d678
Unbarrica ded
x 0.454 Per kg
0
5
70
140
30
60
51
102
6
12
5
10
90
180
35
70
64
128
8
16
10
20
110
220
45
90
81
162
10
20
20
30
125
250
50
100
93
186
11
22
30
40
140
280
55
110
103
206
12
24
40
50
150
300
60
120
110
220
14
28
50
75
170
340
70
140
127
254
15
30
75
100
190
380
75
150
139
278
16
32
100
125
200
400
80
160
150
300
18
36
125
150
215
430
85
170
159
318
19
38
150
200
235
470
95
190
175
350
21
42
200
250
255
510
105
210
189
378
23
46
250
300
270
540
110
220
201
402
24
48
300
400
295
590
120
240
221
442
27
54
400
500
320
640
130
260
238
476
29
58
500
600
340
680
135
270
253
506
31
62
600
700
355
710
145
290
266
522
32
64
700
800
375
750
150
300
278
556
33
66
800
900
390
780
155
310
289
578
34
68
900
1,000
400
800
160
320
300
600
36
72
1,000
1,200
425
850
165
330
318
636
39
78
1,200
1,400
450
900
170
340
336
672
41
82
1,400
1,600
470
940
175
350
351
702
43
86
1,600
1,800
490
980
180
360
366
732
44
88
1,800
2,000
505
1,010
185
370
378
756
45
90
2,000
2,500
545
1,090
190
380
408
816
49
98
2,500
3,000
580
1,160
195
390
432
864
52
104
3,000
4,000
635
1,270
210
420
474
949
58
116
4,000
5,000
685
1,370
225
450
513
1,026
61
122
5,000
6,000
730
1,460
235
470
546
1,092
65
130
6,000
7,000
770
1,540
245
490
573
1,146
68
136
7,000
8,000
800
1,600
250
500
600
1,200
72
144
8,000
9,000
835
1,670
255
510
624
1,248
75
150
9,000
10,000
865
1,730
260
520
645
1,290
78
156
10,000
12,000
875
1,750
270
520
687
1,374
82
164
12,000
14,000
885
1,770
275
550
723
1,446
87
174
14,000
16,000
900
1,800
280
560
756
1,512
90
180
16,000
18,000
940
1,880
285
570
786
1,572
94
188
18,000
20,000
975
1,950
290
580
813
1,626
98
196
20,000
25,000
1,055
2,000
315
630
876
1,752
105
210
25,000
30,000
1,130
2,000
340
680
933
1,866
112
224
30,000
35,000
1,205
2,000
360
720
981
1,962
119
238
35,000
40,000
1,275
2,000
380
760
1,026
2,000
124
248
40,000
45,000
1,340
2,000
400
800
1,068
2,000
129
258
45,000
50,000
1,400
2,000
420
840
1,104
2,000
135
270
50,000
55,000
1,460
2,000
440
880
1,140
2,000
140
280
55,000
60,000
1,515
2,000
455
910
1,173
2,000
145
290
60,000
65,000
1,565
2,000
470
940
1,206
2,000
150
300
65,000
70,000
1,610
2,000
485
970
1,236
2,000
155
310
70,000
75,000
1,655
2,000
500
1,000
1,263
2,000
160
320
75,000
80,000
1,695
2,000
510
1,020
1,293
2,000
165
330
80,000
85,000
1,730
2,000
520
1,040
1,317
2,000
170
340
85,000
90,000
1,760
2,000
530
1,060
1,344
2,000
175
350
90,000
95,000
1,790
2,000
540
1,080
1,368
2,000
180
360
95,000
100,000
1,815
2,000
545
1,090
1,392
2,000
185
370
100,000
110,000
1,835
2,000
550
1,100
1,437
2,000
195
390
110,000
120,000
1,855
2,000
555
1,110
1,479
2,000
205
410
120,000
130,000
1,875
2,000
560
1,120
1,521
2,000
215
430
130,000
140,000
1,890
2,000
565
1,130
1,557
2,000
225
450
140,000
150,000
1,900
2,000
570
1,140
1,593
2,000
235
470
150,000
160,000
1,935
2,000
580
1,160
1,629
1,866
245
490
160,000
170,000
1,990
2,000
590
1,180
1,662
1,962
255
510
170,000
180,000
2,010
2,000
600
1,200
1,695
2,000
265
530
180,000
190,000
2,030
2,000
605
1,210
1,725
2,000
275
550
190,000
200,000
2,055
2,000
610
1,220
1,755
2,000
285
570
205,000
210,000
2,055
2,000
620
1,240
1,762
2,000
295
590
210,000
230,000
2,100
2,000
635
1,270
1,836
2,000
315
630
230,000
250,000
2,155
2,000
650
1,300
1,890
2,000
335
670
250,000
275,000
2,215
2,000
670
1,340
1,950
2,000
360
720
275,000
300,000"
2,275
2,000
690
1,380
2,000
2,000
385
770
1 "Explosive materials" means
				  explosives, blasting agents and detonators.
2 "Explosives" means any chemical
				  compound, mixture, or device, the primary or common purpose of which is to
				  function by explosion. A list of explosives determined to be within the
				  coverage of 18 U.S.C. Chapter 40, Importation, Manufacturer, Distribution and
				  Storage of Explosive Materials, is issued at least annually by the director of
				  the Bureau of Alcohol, Tobacco and Firearms of the Department of the Treasury.
				  For quantity and distance purposes, detonating cord of 50 grains per foot
				  (10.7g/m) should be calculated as equivalent to 8 pounds (3.6 kg) of high
				  explosives per 1,000 feet (304.8 m). Heavier or lighter core loads should be
				  rated proportionately.
3 "Blasting agents" means any
				  material or mixture, consisting of fuel and oxidizer, intended for blasting,
				  not otherwise defined as an explosive, provided that the finished product, as
				  mixed for use or shipment, cannot be detonated by means of a No. 8 test
				  blasting cap when unconfined.
4 "Detonator" means any device
				  containing any initiating or primary explosive that is used for initiating
				  detonation. A detonator may not contain more than 10 grams of total explosives
				  by weight, excluding ignition or delay charges. The term includes, but is not
				  limited to, electric blasting caps of instantaneous and delay types, blasting
				  caps for use within safety fuses, detonating cord delay connectors, and
				  non-electric instantaneous and delay blasting caps which use detonating cord,
				  shock tube or any other replacement for electric leg wires. All types of
				  detonators in strengths through No. 8 cap should be rated at 1 1/2 pounds (0.68
				  kg) of explosives per 1,000 caps. For strengths higher than No. 8 cap, consult
				  the manufacturer.
5 "Magazine" means any building,
				  structure, or container, other than an explosives manufacturing building,
				  approved for the storage of explosive materials.
6 "Natural barricade" means
				  natural features of the ground such as hills, or timber of sufficient density
				  that the surrounding exposure which require protection cannot be seen from the
				  magazine when the trees are bare of leaves.
7 "Artificial barricade" means an
				  artificial mound or riveted wall of earth of a minimum thickness of 3 feet
				  (914.4 mm).
8 "Barricaded" means the effective
				  screening of a building containing explosive materials from the magazine or
				  other building, railway or highway by a natural
9 "Inhabited building" means a
				  building regularly occupied in whole or part as a habitation for human beings,
				  or any church, schoolhouse, railroad station, store, or other structure where
				  people are accustomed to assemble, except any building or structure occupied in
				  connection with the manufacture, transportation, storage, or use of explosive
				  materials.
10 "Railway" means any steam,
				  electric, or other railroad or railway that carries passengers for hire.
11 "Highway" means any public
				  street, public alley, or public road.
12 When two or more storage
				  magazines are located on the same property, each magazine must comply with the
				  minimum distances specified from inhabited buildings, railways, and highways,
				  and in addition, they should be separated from each other by not less than the
				  distances shown for "Separation of Magazines", except that the quantity of
				  explosive materials contained in detonator magazines shall govern in regard to
				  the spacing of said detonator magazines from magazines containing other
				  explosive materials. If any two or more magazines are separated from each other
				  by less than the specified "Separation of Magazines" distances, then such two
				  or more magazines, as a group, must be considered as one magazine, and the
				  total quantity of explosive materials stored in such group must be treated as
				  if stored in a single magazine located on the site of any magazine of the group
				  and must comply with the minimum of distances specified from other magazines,
				  inhabited buildings, railways, and highways.
13 Storage in excess of 300,000
				  pounds (136,077.6 kg) of explosive materials in one magazine is generally not
				  required for commercial enterprises.
14 This table applies only to the
				  manufacture and permanent storage of commercial explosive materials. It is not
				  applicable to transportation of explosives or any handling or temporary storage
				  necessary or incidental thereto. It is not intended to apply to bombs,
				  projectiles, or other heavily encased explosives.
15 When a manufacturing building
				  on an explosive materials plant site is designed to contain explosive
				  materials, such building shall be located from inhabited buildings, public
				  highways, and passenger railways in accordance with Table A-VI-F-5 based on the
				  maximum quantity of explosive materials permitted to be in the building at one
				  time.
The American Table of Distances (Table A-VI-F-5) is
				  reprinted by permission of the Institute of Makers of Explosives with the
				  provision that the entire table, complete with all explanatory footnotes, be
				  printed.
TABLE A-VI-F-6 - TABLE OF RECOMMENDED SEPARATION DISTANCES OF
				  AMMONIUM NITRATE AND BLASTING AGENTS FROM EXPLOSIVES OR BLASTING
				  AGENTS1
									6
DONOR WEIGHT
MINIMUM SEPARATION DISTANCE OF ACCEPTOR WHEN
								BARRICADED2 (feet)
MINIMUM THICKNESS OF
ARTIFICIAL
								BARRICADES5
(inches)
Pounds Over
Pounds Not Over
X 304.8 Per mm
X 0.484 Per kg
Ammonium Nitrate3
Blasting Agent4
X 25.4 Per mm
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
42
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
1 Recommended separation distances
				  to prevent explosion of ammonium nitrate and ammonium nitrate-based agents by
				  propagation from nearby stores of high explosives or blasting agents referred
				  to in Table A-VI-F-6 as the "donor." Ammonium nitrate, by itself, is not
				  considered to be a donor when applying Table A-1 Recommended separation
				  distances to prevent explosion of ammonium nitrate and ammonium nitrate-based
				  agents by propagation from nearby stores of high explosives or blasting agents
				  referred to in Table A-VI-F-6 as the "donor." Ammonium nitrate, by itself, is
				  not considered to be a donor when applying Table A-VI-F-6, Ammonium nitrate,
				  ammonium nitrate-fuel oil, or combination 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 should
				  be included in the mass of the donor.
2 When the ammonium nitrate or
				  blasting agent is not barricaded, the distances shown in Table A-VI-F-6 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." Where
				  storage is in bullet resistant magazines recommended for explosives or where
				  the storage is protected by a bullet resistant wall, distances and barricade
				  thicknesses in excess of those prescribed in Table A-VI-F-5, Footnote 7, are
				  not required. For construction of bullet resistant magazines, see Article
				  77.
3 The distances in Table A-VI-F-6
				  apply to ammonium nitrate that passes the insensitivity test prescribed in the
				  definition of ammonium nitrate fertilizer promulgated by the Fertilizer
				  Institute (Definitions and Test Procedure for Ammonium Nitrate Fertilizer,
				  Fertilizer Institute 1964); and ammonium nitrate failing to pass said test
				  shall be stored at separation distances determined by competent persons and
				  approved by the authority having jurisdiction.
4 These distances apply to
				  blasting agents which pass the insensitivity test prescribed in regulations of
				  the United States Department of Transportation and the United States Department
				  of the Treasury, Bureau of Alcohol, Tobacco and Firearms.
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 exposure which requires protection
				  cannot be seen from the "donor" when the trees are bare of leaves, are also
				  acceptable.
6 For determining the distances to
				  be maintained from inhabited buildings, passenger railways, and public
				  highways, see Table A-VI-F-5 (High Explosives and Blasting Agents) or Table
				  A-VI-F-7 (Low Explosives).
TABLE A-VI-F-7 TABLE OF DISTANCES FOR STORAGE OF LOW
				  EXPLOSIVES
LOW EXPLOSIVES (pounds)
FROM INHABITED
BUILDING DISTANCE
(feet)
FROM PUBLIC RAILROAD
AND HIGHWAY DISTANCE
(feet)
FROM ABOVEGROUND MAGAZINE (feet)
X 0.484 per kg
Over
Not Over
x 304.3 per cm
0
1,000
75
75
60
1,000
5,000
115
115
75
5,000
10,000
130
130
100
10,000
20,000
180
180
125
20,000
30,000
215
215
145
30,000
40,000
235
235
155
40,000
50,000
250
250
165
50,000
60,000
260
260
175
60,000
70,000
270
270
185
70,000
80,000
300
300
190
80,000
90,000
325
325
195
90,000
100,000
350
350
200
100,000
200,000
375
375
250
200,000
300,000
400
400
300
TABLE A-VI-F-8 - DISTANCES FOR THE OPEN BURNING OF
				  EXPLOSIVES1
QUANTITY OF
							 EXPLOSIVES2
													3
													4
													5 (Not Over)
MINIMUM DISTANCE IN FEET
× 304.8 Per mm
Inhabited
							 Buildings9
Public Highways with Traffic Volume of
							 less than 3,000 Vehicles per Day
Passenger Railways and Public Highways
							 with Traffic Volumes more than 3,000 Vehicles per
							 Day10
													11
Separation From Other Open Burning Units
Pounds
No Missile Hazard
Missile Hazard Without
Barricade
6
													7
													8
No Missile Hazard
Missile Hazard Without Barricade
No Missile Hazard
Missile Hazard Without Barricade
X 0.484 Per kg
10
90
180
35
70
64
128
8
20
110
220
45
90
81
162
10
50
150
300
60
120
110
220
14
75
170
340
70
140
127
254
15
100
190
380
75
150
139
278
16
250
255
510
105
210
189
378
23
500
320
640
130
260
238
476
29
1,000
400
800
160
320
300
600
36
1,600
470
940
175
350
351
702
43
2,000
505
1,010
185
370
378
756
45
2,500
545
1,090
190
380
408
816
49
3,000
580
1,160
195
390
432
864
52
4,000
635
1,270
210
420
474
948
58
5,000
685
1,370
225
450
513
1,026
61
6,000
730
1,460
235
470
546
1,092
65
7,000
770
1,540
245
490
573
1,146
68
8,000
800
1,600
250
500
600
1,200
72
9,000
835
1,670
255
510
624
1,248
75
10,000
865
1,730
260
520
645
1,290
78
1 This table is intended only for
				  application of open burning of commercial explosive materials. The distances
				  stated in this table should be measured from the center of the unit, except for
				  separations from other open-burning units, which are measured from the edge of
				  the unit.
2 "Explosive materials" means any
				  explosive, slurry, emulsion, detonating cord, blasting agents, and
				  detonators.
3 "Explosives" means any chemical
				  compound, mixture, or device, the primary or common purpose of which is to
				  function by explosion. A list of explosives determined to be within the
				  coverage of 18 U.S.C. Chapter 40, Importation, Manufacture, Distribution and
				  Storage of Explosive Material, is issued at least annually by the director of
				  the Bureau of Alcohol, Tobacco, and Firearms of the Department of the Treasury.
				  For quantity and distance purposes, detonating cord of 50 grains per foot (10.7
				  g/m) should be calculated as equivalent to 8 pounds (3.6 kg) of high explosives
				  per 1,000 feet (304.8 m). Heavier or lighter core loads should be rated
				  proportionally.
4 "Blasting agents" means any
				  material or mixture, consisting of fuel and oxidizer, intended for blasting,
				  not otherwise defined as an explosive, provided the finished product, as mixed
				  for use or shipment, cannot be detonated by means of a No. 8 test blasting cap
				  when unconfined.
5 "Detonator" means any device
				  containing any initiating or primary explosive that is used for initiating
				  detonation. A detonator may not contain more than 10 grams of total explosives
				  by weight, excluding ignition or delay charges. The term includes, but is not
				  limited to, electric blasting caps of instantaneous and delay blasting caps
				  that use detonating cord, shock tube, or any other replacement for electric
				  wires. All types of detonators in strengths through No. 8 cap should be rated
				  at 1 1/2 pounds (0.68 kg) of explosives per 1,000 caps. For strengths higher
				  than No. 8 cap, consult the manufacturer.
6 "Natural barricade" means
				  natural features of the ground, such as hills, or timber of sufficient density
				  that the surrounding exposures that require protection cannot be seen from the
				  magazine when the trees are bare of leaves.
7 "Artificial barricade" means an
				  artificial mound or riveted wall of earth of a minimum thickness of 3 feet
				  (914.4 mm).
8 "Barricaded" means the effective
				  screening of a building containing explosive materials from the magazine or
				  other building, OB/OD site, railway, or highway by a natural or an artificial
				  barrier. A straight line from the top of any sidewall of the building
				  containing explosive materials to the eave line of any magazine or other
				  building or to a point 12 feet (3,657.6 mm) above the center of a railway or
				  highway shall pass through such a barrier.
9 "Inhabited building" means a
				  building, regularly occupied in whole or part as a habitation for human beings,
				  or any church, schoolhouse, railroad station, store, or other structure where
				  people are accustomed to assemble. This does not mean any office, warehouse,
				  production, laboratory, or other buildings that are a part of the facility
				  where the open burning or open detonation sites are located.
10 "Highway" means any public
				  street, public alley, or public road.
11 "Railway" means any steam,
				  electric, or other railroad or railway that carries passengers for hire.
TABLE A-VI-F-9 - DISTANCES FOR THE OPEN DETONATION OF
				  EXPLOSIVES1
QUANTITY OF
							 EXPLOSIVES2
													3
													4
													5 (Not Over)
MINIMUM DISTANCE IN FEET
X 304.8 Per mm
Inhabited
							 Buildings9
Public Highways with Traffic Volume of
							 less than 3,000 Vehicles per Day
Passenger Railways and Public Highways
							 with Traffic Volumes more than 3,000 Vehicles per
							 Day10
													11
Separation From Other Open Detonation
							 Units
Pounds
No Missile Hazard
Missile Hazard Without
Barricade
6
													7
													8
No Missile Hazard
Missile Hazard Without
Barricade
6
													7
													8
No Missile Hazard
Missile Hazard Without
Barricade
6
													7
													8
No Missile Hazard
Missile Hazard Without
Barricade
6
													7
													8
1
730
730
325
325
480
480
6
12
2
920
920
410
410
600
600
6
12
5
1,250
1,250
550
550
820
820
6
12
10
1,600
1,600
695
695
1,030
1,030
8
16
20
1,990
1,990
875
875
1,295
1,295
10
20
50
2,700
2,700
1,190
1,190
1,760
1,760
14
28
75
3,080
3,080
1,360
1,360
2,015
2,015
15
30
100
3,400
3,400
1,500
1,500
2,220
2,220
16
32
150
3,900
3,900
1,715
1,715
2,535
2,535
19
38
200
4,275
4,275
1,890
1,890
2,795
2,795
21
42
300
4,900
4,900
2,160
2,160
3,200
3,200
24
48
400
5,400
5,400
2,380
2,380
3,520
3,520
27
54
500
5,800
5,800
2,560
2,560
3,790
3,790
29
58
1 This table is intended only for
				  application of open burning of commercial explosive materials. The distances
				  stated in this table should be measured from the center of the unit, except for
				  separations from other open-burning units, which are measured from the edge of
				  the unit.
2 "Explosive materials" means any
				  explosive, slurry, emulsion, detonating cord, blasting agents, and
				  detonators.
3 "Explosives" means any chemical
				  compound, mixture or device, the primary or common purpose of which is to
				  function by explosion. A list of explosives determined to be within the
				  coverage of 18 U.S.C. Chapter 40, Importation, Manufacture, Distribution and
				  Storage of Explosive Material, is issued at least annually by the director of
				  the Bureau of Alcohol, Tobacco, and Firearms of the Department of the Treasury.
				  For quantity and distance purposes, detonating cord of 50 grains per foot (10.7
				  g/m) should be calculated as equivalent to 8 pounds (3.6 kg) of high explosives
				  per 1,000 feet (304.8 m). Heavier or lighter core loads should be rated
				  proportionally.
4 "Blasting agents" means any
				  material or mixture, consisting of fuel and oxidizer, intended for blasting,
				  not otherwise defined as an explosive, provided the finished product, as mixed
				  for use or shipment, cannot be detonated by means of a No. 8 test blasting cap
				  when unconfined.
5 "Detonator" means any device
				  containing any initiating or primary explosive that is used for initiating
				  detonation. A detonator may not contain more than 10 grams of total explosives
				  by weight, excluding ignition or delay charges. The term includes, but is not
				  limited to, electric blasting caps of instantaneous and delay blasting caps
				  that use detonating cord, shock tube, or any other replacement for electric
				  wires. All types of detonators in strengths through No. 8 cap should be rated
				  at 1 1/2 pounds (0.68 kg) of explosives per 1,000 caps. For strengths higher
				  than No. 8 cap, consult the manufacturer.
6 "Natural barricade" means
				  natural features of the ground, such as hills, or timber of sufficient density
				  that the surrounding exposures that require protection cannot be seen from the
				  magazine when the trees are bare of leaves.
7 "Artificial barricade" means an
				  artificial mound or riveted wall of earth of a minimum thickness of 3 feet
				  (914.4 mm).
8 "Barricaded" means the effective
				  screening of a building containing explosive materials from the magazine or
				  other building, OB/OD site, railway, or highway by a natural or an artificial
				  barrier. A straight line from the top of any sidewall of the building
				  containing explosive materials to the eave line of any magazine or other
				  building or to a point 12 feet (3,657.6 mm) above the center of a railway or
				  highway shall pass through such a barrier.
9 "Inhabited building" means a
				  building, regularly occupied in whole or part as a habitation for human beings,
				  or any church, schoolhouse, railroad station, store, or other structure where
				  people are accustomed to assemble. This does not mean any office, warehouse,
				  production, laboratory, or other buildings that are a part of the facility
				  where the open burning or open detonation sites are located.
10 "Highway" means any public
				  street, public alley, or public road.
11 "Railway" means any steam,
				  electric, or other railroad or railway that carries passengers for hire.
The American Table of Distances (Table A-VI-F-5) is
					 reprinted by permission of the Institute of Makers of Explosives with the
					 provision that the entire table, complete with all explanatory footnotes, be
					 printed.