The standard describes tests for stacking, transport, sling, forklift and pallet jack, impact, drop tests, tip, water-retention, and disassembly. Quality improvements[ edit ] The least expensive way to improve a pallet is usually to specify better nails. Flush pallet[ edit ] Flush pallets are pallets with deck boards that are flush with the stringers and stringer boards along the ends and sides of the pallet. Metal units today are increasingly price competitive and lighter in weight. Types[ edit ] Pallets being used in a warehouse in Finland Although pallets come in all manner of sizes and configurations, all pallets fall into two very broad categories:
These pallets are simple stringer pallets, and liftable from two sides. They also deliver significant time and cost savings by reducing supply chain handling. Some plastic pallets can collapse from plastic creep if used to store heavy loads for long periods. Treated wood pallets must be stamped on two opposite sides indicating either HT for heat treated or MB for methyl bromide treatment. Pallets made of raw, untreated wood are not compliant with ISPM Plastics' reusability has contributed to an increase in usage of plastic pallets. Ecopallets are also ISPM 15 exempt, negating fumigation and barrier "slip" sheets. Quality improvements[ edit ] The least expensive way to improve a pallet is usually to specify better nails. To be compliant the pallets or other wood packaging material must meet debarked standards,  and must be treated by either of the following means under the supervision of an approved agency: For example, it may not need to turn a pallet to rack it, and operation is less sensitive to pallet orientation. Metal is primarily used in captive or closed loop environments where durability and product protection are key performance requirements. They often use steel pallets, steel straps with notched seals, outdoor plywood, and plastic film. RFID chips can be molded into the pallets to monitor locations and track inventory. While automated handling equipment can be designed for this, often it can operate faster and more effectively if the bottom edges of a pallet have bottom boards oriented in both directions. Other organizations choose to focus on pallet standards for a specific industry such as groceries or type of material such as wood. HDPE is impervious to most acids and toxic chemicals clean from them more easily. Plastic pallets are exempt by inspection for biosafety concerns, and easily sanitize for international shipping. While the standards are voluntary in nature, many companies and organizations involved in transportation have adopted them. These costlier pallets usually require a deposit and are returned to the sender or resold as used. Extensively used in storage and warehousing, they are popular pallets for racking, with the right shape and size to be removed from transport and directly onto warehouse racking for storage. Specifying tolerances on flatness and water content may help the supplier meet target requirements. Steel pallets are strong and are used for heavy loads, high-stacking loads, long term dry storage, and loads moved by abusive logistic systems. Paper pallets are also used where recycling and easy disposal is important. The standard describes tests for stacking, transport, sling, forklift and pallet jack, impact, drop tests, tip, water-retention, and disassembly. Wooden pallet construction specifications can depend on the pallet's intended use: They are usually extremely durable, lasting for a hundred trips or more,  and resist weathering, rot, chemicals and corrosion.
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