ISO or intermodal containers are used for the intermodal transport of freight. They are manufactured according to specifications from the International Orginization for Standardization (ISO) and are suitable for multiple transportation methods such as truck, rail, or ship. These regulations define a shipping container that meets size, strength, and durability requirements. The basis of these regulations is to guarantee that the container can withstand extreme environments endured during transport as well as possess the structural integrity needed to be lifted by cranes or other heavy equipment. Image Credit: ISOCONTAINER.com Container safety certificate (CSC) ISO containers include a container safety certificate (CSC) issued by the manufacturer that must be renewed every 30 months by a certified inspector.

If necessary, an approved continuous examination program (ACEP) can be used in place of this procedure. Image Credit: ContainersforSale Selection Criteria When selecting an ISO container the most important criteria to consider are the type and dimensions of the container.

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It is also important to understand the codes used to mark and identify the container as well as features that may be available. Types of ISO Containers There are several basic types of ISO containers including flat racks, open-top, dry freight, insulated, reefer, and tank containers. Flat racks and platforms are ISO containers that are used to transport heavy machinery. They do not have side walls, but may have end bulkheads and are often collapsible. Image Credit: flatrackcontainer.org Open-top containers are shaped like a box and loaded from either the top or end. They are designed to carry heavy, tall, or hard to load materials such as coal or grain. Image Credit: Shipping Containers24 Dry freight or cube containers are front loaded, completely enclosed and suitable for general-purpose transportation.

Image Credit: Insulated or thermal containers are suitable for transporting chilled and frozen goods, as well as temperature-sensitive materials and products. They have insulated walls, but are not refrigerated. Image Credit: Coastal Container Reefer or refrigeration containers are temperature controlled containers that have an integral refrigeration unit. They are used to ship and transport perishables or other items that require a temperature controlled atmosphere. Image Credit: Tank containers are built to the same standard dimensions as other ISO containers, but are cylindrical vessels mounted in a rectangular steel framework.

Typically, these containers are used to transport liquid or bulk materials. Image Credit: Dimensions ISO containers are the ideal shipping container as their dimensions are regulated by the International Standards Organization (ISO). These regulations allow ISO containers to use space as efficiently as possible regardless of the method of transport. Height Standard ISO containers measure 8 ft. 6 in., but they are available in several discrete heights measuring from 4 ft. Containers that measure 9 ft. Tall are called extended height or high cube containers while 4 ft.

Containers may be referenced as half height containers. Width The majority of all ISO containers measure 8 ft. Or 2,438 mm wide. ISO Containers that exceed this dimension are grouped into two other size ranges. Alpha characters C, D, E, and F identify containers that are greater than 2,438 mm, but less than 2,500 mm. Containers that exceed 2,500 mm are referenced by L, M, N, and P. Length The most common lengths are 20 and 40 ft.