ISO Container Size and Type (ISO 6346)

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ISO Container Size and Type (ISO 6346)

In 1995 the ISO reached an agreement on the marking codes that would depict Length, Height and type of container.

The following Chart shows how the coding is broken down.

ISO coding explanation

ISO Codes

Container Dimensions

Container Dimensions

Before the ISO reached an agreement on the marking codes in 1995, the markings were not set in stone so there were a lot more codes than necessary.

The following chart depicts the new specific codes.

The second chart shows the markings of 1984 compared to those of 1995.

 

Chart one

Code  
Type designation
Main charateristics
 
G General purpose container without ventilation    
Opening(s) at one end or both ends G0
Passive vents at upper part of cargo space Gl
Opening(s) at one or both ends plus “full” opening(s) on one or both sides G2
Opening(s) at one or both ends plus “partial” opening(s) on one or both sides G3
 
V General purpose container with ventilation  
Nonmechanical system, vents at lower and upper parts of cargo space V0
Mechanical ventilation system, located internally V2
Mechanical ventilation system, located externally V4
 
B Dry bulk container  
Nonpresurized, box type, closed B0
Nonpresurized, box type, airtight B1
Pressurized, horizontal discharge, test pressure 150kPa1) B3
Pressurized, horizontal discharge, test pressure 265kPa B4
Pressurized, tipping discharge, test pressure 150 kPa B5
Pressurized, tipping discharge, test pressure 265kPa B6
 
S Named cargo container  
Livestock carrier S0
Automobile carrier S1
Live fish carrier S2
 
R Thermal container  
Refrigerated, mechanically refrigerated R0
Refrigerated and heated, mechanically refrigerated and heated RI
Self-powered refrigerated/heated, mechanically refrigerated R2
Mechanically refrigerated and heated R3
 
H Thermal container  
Refrigerated and/or heated, with removable equipment located externally; heat transfer coefficient K=0,4W/(m2*K) HO
Refrigerated and/or heated with removable equipment located internally HI
Refrigerated and/or heated with removable equipment located externally; heat transfer coefficient K =0,7W/(m2*K) H2
Insulated; heat transfer coefficient K= 0,4W/(m2*K) H5
Insulated; heat transfer coefficient K= 0,7W/(m2*K) H6
 
U Open-top container  
Opening(s) at one or both ends U0
Opening(s) at one or both ends, plus removable top member(s) in end frame(s) U1
Opening(s) at one or both ends, plus opening(s) on one or both sides U2
Opening(s) at one or both ends, plus opening(s) on one or both  sides plus removable top  member(s) in end frame(s) U3
Opening(s) at one or both ends, plus partial opening on one side and full opening on the other side U4
Complete, fixed side and end walls (no doors) U5
 
P Platform (container)  
Platform (container) P0
Platform-based containers with  in complete superstructure:  
Fixed, two complete and fixed ends P1
Fixed, fixed posts, either free-standing or with removable top member P2
Folding (collapsible), folding complete end structure P3
Folding (collapsible), Folding posts, either free-standing or with removable top member P4
Platform-based containers with complete super structure  
Open top, open ends (skeletal) P5
 
T Tank container  
For non dangerous liquids, minimum pressure 45kPa T0
For non dangerous liquids, minimum pressure 150kPa Tl
For non dangerous liquids, minimum pressure 265kPa T2
For dangerous liquids, minimum pressure 150kPa T3
For dangerous liquids, minimum pressure 265kPa T4
For dangerous liquids, minimum pressure 40kPa T5
For dangerous liquids, minimum pressure 60kPa T6
For gases, minimum pressure 910kPa T7
For gases, minimum pressure 220 kPa T8
For gases, minimum pressure (to be decided) T9
 
A Air/surface container  
A0


Second Chart
 

ISO Codes for container Size and Type

Comparison between the 1984 codes and the current 1995 codes

1984 1995 Length (ft) height (ft) Group Characteristics
2000 20G0 20 8 G0 Opening(s) at one end or both ends
2020 20 8 Insulated/Vented
2030 20R0 20 8 R0 Refrigerated, mechanically refrigerated
2032 20 8 Reefer/heated
2050 20U0 20 8 U0 Opening(s) at one or both ends
2052 20 8 Open Top, Open Side
2054 20G2 20 8 G2 Opening(s) at one or both ends plus “full” opening(s) on one or both sides
2060 20P0 20 8 P0 Platform (container)
2063 20P1 20 8 P1 Fixed, two complete and fixed ends
2070 20T0 20 8 T0 For non dangerous liquids, minimum pressure 45kPa
2080 20B0 20 8 B0 Nonpresurized, box type, closed
2150 20 8 Open Top
2160 20 8 Flat
2163 20 8 Flat, Collapsible
2200 22G0 20 8.6 G0 Opening(s) at one end or both ends
2210 22G1 20 8.6 G1 Passive vents at upper part of cargo space
2213 20 8.6 Dry Van
2215 22V1 20 8.6 V1 Mechanical ventilation system, located internally
2220 20 8.6 Insulated/vented
2230 22R0 20 8.6 R0 Refrigerated, mechanically refrigerated
2232 22R1 20 8.6 R1 Refrigerated and heated, mechanically refrigerated and heated
2250 22U0 20 8.6 U0 Opening(s) at one or both ends
2251 22U1 20 8.6 U1 Opening(s) at one or both ends, plus removable top member(s) in end frame(s)
2252 20 8.6 Open Top, Open Side
2253 20 8.6 Open Top, Open Side/remv. member
2254 22G2 20 8.6 G2 Opening(s) at one or both ends plus “full” opening(s) on one or both sides
2260 22P0 20 8.6 P0 Platform (container)
2261 22P1 20 8.6 P1 Fixed, two complete and fixed ends
2263 22P3 20 8.6 P3 Folding (collapsible), folding complete end structure
2270 22T0 20 8.6 T0 For non dangerous liquids, minimum pressure 45kPa
2275 22T5 20 8.6 T5 For dangerous liquids, minimum pressure 40kPa
2280 22B0 20 8.6 B0 Nonpresurized, box type, closed
2432 25R1 20 9 R1 Refrigerated and heated, mechanically refrigerated and heated
2500 25G0 20 9.6 G0 Opening(s) at one end or both ends
2510 25G1 20 9.6 G1 Passive vents at upper part of cargo space
2530 25R0 20 9.6 R0 Refrigerated, mechanically refrigerated
2550 25U0 20 9.6 U0 Opening(s) at one or both ends
2554 25G2 20 9.6 G2 Opening(s) at one or both ends plus “full” opening(s) on one or both sides
2560 25P0 20 9.6 P0 Platform (container)
2563 25P3 20 9.6 P3 Folding (collapsible), folding complete end structure
2570 25T0 20 9.6 T0 For non dangerous liquids, minimum pressure 45kPa
2580 25B0 20 9.6 B0 Nonpresurized, box type, closed
2600 20 >9.6 Dry Van
4000 40G0 40 8 G0 Opening(s) at one end or both ends
4020 40 8 Insulated/vented
4030 40R0 40 8 R0 Refrigerated, mechanically refrigerated
4050 40U0 40 8 U0 Opening(s) at one or both ends
4054 40G2 40 8 G2 Opening(s) at one or both ends plus “full” opening(s) on one or both sides
4060 40P0 40 8 P0 Platform (container)
4063 40P3 40 8 P3 Folding (collapsible), folding complete end structure
4070 40T0 40 8 T0 For non dangerous liquids, minimum pressure 45kPa
4080 40B0 40 8 B3 Nonpresurized, box type, closed
4132 40 8 Reefer/heated
4170 40 8 Tank
4260 40 8.6 Flat
4263 40 8.6 Flat, Collapsible
4300 42G0 40 8.6 G0 Opening(s) at one end or both ends
4301 40 8.6 Dry Van
4305 40 8.6 Dry Van
4310 42G1 40 8.6 G1 Passive vents at upper part of cargo space
4315 42V1 40 8.6 V1 Mechanical ventilation system, located internally
4320 40 8.6 Insulated/vented
4330 42R0 40 8.6 R2 Self-powered refrigerated/heated, mechanically refrigerated
4332 42R1 40 8.6 R1 Refrigerated and heated, mechanically refrigerated and heated
4350 42U0 40 8.6 U0 Opening(s) at one or both ends
4351 42U1 40 8.6 U1 Opening(s) at one or both ends, plus removable top member(s) in end frame(s)
4354 42G2 40 8.6 G2 Opening(s) at one or both ends plus “full” opening(s) on one or both sides
4360 42P0 40 8.6 P0 Platform (container)
4361 42P1 40 8.6 P1 Fixed, two complete and fixed ends
4363 42P3 40 8.6 P3 Folding (collapsible), folding complete end structure
4370 42T0 40 8.6 T0 For non dangerous liquids, minimum pressure 45kPa
4380 42B0 40 8.6 B0 Nonpresurized, box type, closed
4400 40 9 Dry Van
4420 40 9 Insulated/vented
4426 40 9 Insulated/vented
4432 40 9 Reefer/heated
4500 45G0 40 9.6 G0 Opening(s) at one end or both ends
4510 45G1 40 9.6 G1 Passive vents at upper part of cargo space
4511 40 9.6 Dry Van
4530 45R0 40 9.6 R0 Refrigerated, mechanically refrigerated
4531 40 9.6 Reefer
4532 45R1 40 9.6 R1 Refrigerated and heated, mechanically refrigerated and heated
4550 45U0 40 9.6 U0 Opening(s) at one or both ends
4554 45G2 40 9.6 G2 Opening(s) at one or both ends plus “full” opening(s) on one or both sides
4560 45P0 40 9.6 P0 Platform (container)
4563 45P3 40 9.6 P3 Folding (collapsible), folding complete end structure
4570 45T0 40 9.6 Tank
4580 45B0 40 9.6 Dry Bulk, clossed
4599 40 9 Special
4650 40 4.3 Open Top
4699 40 4.3 Special
4960 40 4 Platform
8500 35 8.6 Dry van
8520 35 8.6 Insulated/vented
8532 35 8.6 Reefer/heated
8550 35 8.6 Open Top
8599 35 8.6 Special
8770 35 4.3 Tank
9200 45 8.6 Dry Van
9400 45 9.6 Dry Van
9500 L5G0 45 9.6 Dry Van
9510 45 9.6 Dry Van
9530 L5R0 45 9.6 Refrigerated, mechanically refrigerated
9532 45 9.6 Reefer/heated
9550 L5U0 45 9.6 Open Top
9554 L5G2 45 9.6 Dry Van
9560 L5P0 45 9.6 Flat
9563 L5P3 45 9.6 Flat, Collapsible
9570 L5T0 45 9.6 Tank
9580 L5B0 45 9.6 Dry Bulk, clossed

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