ISO 13795-2012 Marine Double Bollard
Introduction:
ISO 13795:2012 is a standard that specifies the requirements and dimensions of marine double bollards. A bollard is a type of post or pole that is commonly used to secure ships or boats to a dock or other mooring location.
The double bollard is a specific type of bollard that is designed to provide greater strength and stability compared to a single bollard. It consists of two vertical posts that are connected by a horizontal crossbar, forming a "T" shape.
The standard covers the materials, construction, and performance requirements of the double bollard. It specifies the dimensions of the bollard, such as the height and width of the posts, the diameter of the crossbar, and the distance between the posts. The standard also outlines the testing procedures that the bollards must undergo to ensure that they meet the specified performance requirements.
Drawing of ISO 13795-2012 Marine Double Bollard Type A:
Parameters s of ISO 13795-2012 Marine Double Bollard Type A:
Nominal
Size
Dn
D1
D2
D3
D4
H1
H2
H3
H4
b
L
E
t
t1
t2
R
150
165.2
185
-
80
330
90
70
60
155
400
-
8.0
6
6
40
200
216.3
240
-
130
395
115
70
60
205
500
-
8.0
6
6
50
250A
267.4
290
-
160
505
135
90
75
250
630
-
12.0
9
8
60
250B
267.4
290
-
160
505
135
90
75
250
630
-
10.0
8
7
60
300A
318.5
340
150
185
600
150
110
85
290
800
300
21.5
16
9
70
300B
318.5
340
150
185
600
150
110
85
290
800
300
12.0
9
9
70
350A
355.6
380
170
200
685
175
130
105
340
890
350
26.0
19
11
80
350B
355.6
380
170
220
685
175
130
105
340
890
350
14.0
10
9
80
400A
406.4
430
190
230
730
185
145
115
380
1000
380
28.0
20
13
85
400B
406.4
430
190
250
730
185
145
115
380
1000
380
15.0
11
11
85
450A
457.2
480
210
265
770
195
160
120
425
1100
410
29.0
21
14
90
450B
457.2
480
210
285
770
195
160
120
425
1100
410
14.5
11
11
90
500A
508.0
530
235
295
830
230
200
150
480
1250
460
32.0
23
16
100
500B
508.0
530
235
320
830
230
200
150
480
1250
460
14.5
11
11
100
550A
558.8
580
255
330
900
270
200
180
520
1380
540
31.0
22
16
110
550B
558.8
580
255
350
900
270
200
180
520
1380
540
21.0
16
11
110
600
609.4
630
280
365
950
300
200
200
560
1550
600
33.0
23
16
120
SWL of ISO 13795-2012 Marine Double Bollard Type A:
Nominal
Size
Welding leg length
SWL
Calculated
weight
For mooring purposes
(Figure-of-eight belay)
For towing purposes
(eye splice)
Dn
z1
z2
One-rope use
Two-rope use
(kg)
(kN)
(t)
(kN)
(t)
(kN)
(t)
150
3.5
3.5
54
5.5
49
5.0
383
10
29
200
3.5
3.5
82
8.4
65
6.7
579
13
46
250A
5.5
4
156
16
134
14
1315
27
107
250B
5.5
4
127
13
108
11
215
22
91
300A
10.5
4
332
34
306
31
3365
62
281
300B
10.5
4
186
19
161
16
352
36
166
350A
12.5
5
443
45
418
43
5062
85
431
350B
7
4
244
25
216
22
2855
50
241
400A
12.5
6
594
61
521
53
6632
106
570
400B
8
5
326
33
269
27
3816
67
322
450A
12
7
753
77
612
62
8201
124
712
450B
8
7
382
39
292
30
4483
78
379
500A
12.5
8
992
101
757
77
10928
154
960
500B
8
5
457
47
326
33
5474
93
465
550A
11.5
8
1131
115
812
83
12635
165
1123
550B
11.5
5
781
80
541
55
9280
159
787
600
11.5
8
1401
143
948
97
15539
193
1391
Drawing of ISO 13795-2012 Marine Double Bollard Type B:
Parameters of ISO 13795-2012 Marine Double Bollard Type B:
Nominal
Size
Dn
D1
D2
H1
H2
h1
h2
b
L
L1
E
t
t1
t2
R
150
165.2
185
320
80
62
70
225
400
670
145
8.0
8
6
40
200
216.3
240
365
85
67
70
290
500
860
160
8.0
8
6
50
250A
267.4
290
470
100
79
90
360
630
1065
215
12.0
11
8
60
250B
267.4
290
470
100
79
90
360
630
1065
215
10.0
8
7
60
300A
318.5
340
575
125
95
110
430
800
1300
325
21.5
20
9
70
300B
318.5
340
575
125
95
110
430
800
1300
325
12.0
9
9
70
350A
355.6
380
655
145
108
130
480
890
1475
360
26.0
23.5
11
80
350B
355.6
380
655
145
119
130
480
890
1475
360
14.0
13
9
80
400A
406.4
430
705
160
121
145
550
1000
1630
400
28.0
26
13
85
400B
406.4
430
705
160
133
145
550
1000
1630
400
15.0
13.5
11
85
450A
457.2
480
745
170
131
160
620
1100
1810
430
29.0
26
14
90
450B
457.2
480
745
170
144
160
620
1100
1810
430
14.5
13
11
90
500A
508.0
530
790
190
146
200
690
1250
2040
500
32.0
29
16
100
500B
508.0
530
790
190
162
200
690
1250
2040
500
14.5
13
11
100
550A
558.8
580
840
210
167
200
750
1380
2240
560
31.0
28
16
110
550B
558.8
580
840
210
176
200
750
1380
2240
560
21.0
19
11
110
600
609.4
630
875
225
182
200
820
1550
2490
660
33.0
28
16
120
SWL of ISO 13795-2012 Marine Double Bollard Type B:
Nominal
Size
Welding leg length
SWL
Calculated
weight
For mooring purposes
(Figure-of-eight belay)
For towing purposes
(eye splice)
Dn
z1
z2
z3
z4
One-rope use
Two-rope use
(kN)
(t)
(kN)
(t)
(kN)
(t)
(kg)
150
3
3
6
4
54
5.5
49
5.0
540
10
45
200
3
3
6
4
82
8.4
65
6.7
795
13
68
250A
4
4.5
8
6
156
16
134
14
1736
27
150
250B
3
3.5
6
4
127
13
108
11
216
22
119
300A
4
8
12
10
332
34
306
31
4365
62
383
300B
4
5
8
6
186
19
161
16
353
36
203
350A
5
10
14
12
443
45
418
43
6543
85
582
350B
4
5.5
8
16
244
25
216
22
3757
50
333
400A
6
11
16
13
594
61
521
53
8819
106
793
400B
5
5.5
8
7
326
33
269
27
4983
67
441
450A
7
11
16
13
753
77
612
62
10820
124
979
450B
7
5.5
8
7
382
39
292
30
5837
78
517
500A
8
12
17
15
992
101
757
77
14470
154
1321
500B
5
5.5
8
7
457
47
326
33
7102
93
631
550A
8
11
17
14
1131
115
812
83
16628
165
1530
550B
5
8
12
10
781
80
541
55
11949
159
1059
600
8
11
17
14
1401
143
948
97
20042
193
1850
Related products for "ISO 13795-2012 Marine Double Bollard"
