Static compression and bending tests provide data that are used to estimate stiffness, strength, and safe working loads for pallets under specified load and support conditions. These estimates provide a basis for designing pallets and comparing the performance between pallets of different designs and constructions.
Dynamic tests provide data which are used to estimate the physical durability and functionality of a pallet in specified material handling and shipping environments. These estimates provide a basis for designing single or multiple-use pallets.
Other tests may be performed to assess the properties of specific materials (Test Methods D 2395
1.1 These test methods cover the performance of pallets and related structures, functioning as skids, bases, platforms, and bins in materials handling and shipping. Their use facilitates the protection of both packaged and unpackaged products during storage and transportation. The test methods include measurements of the relative resistance of pallets and related structures to deformations, damages, and structural failures which detrimentally affect the functionality of the unit load.
1.2 These test methods include conditioning requirements, static stiffness and strength tests, and dynamic tests of structural reliability. These test methods are used to evaluate the relative performance of new, used, or reconditioned general and special-purpose pallets fabricated from various materials including solid wood, wood composites, fiberboard, honeycomb, plastics, or metal, or to compare the performance of such pallets and related structures to specified performance criteria. Recommended criteria for all tests specified in this standard are listed in Appendix X2.
1.2.1 These test methods are also used to classify pallets as single- or multiple-use pallets and to determine the safe working loads for pallets under specified load and support conditions.
1.3 Nonmandatory Preliminary Tests8212;Because each pallet may be used under several different conditions of load and support, pallet-design considerations and safe working-load estimates shall be based on that condition under which the pallet offers least resistance or is most severely stressed.
1.3.1 Preliminary, short-duration static tests up to the ultimate (see 8.2, 8.3, and 8.4) shall be performed on previously non-tested pallets to determine which load and support conditions influence most severely the pallet load-carrying capacity and safe working loads.
1.3.2 During the development of prototypes leading to designs that will be subject to acceptance testing, as described in 1.4, these preliminary tests shall include the free-fall drop tests in accordance with 9.1.
1.4 Mandatory Acceptance Tests:
1.4.1 General-Purpose Pallets8212;When the objective of the test is to determine the safe working load or to classify a general-purpose pallet as a single- or multiple-use pallet, all tests described in these test methods shall be performed in the order specified. The same pallet shall be used for all static and dynamic tests, where feasible.
1.4.2 Special-Purpose Pallets8212;When the objective of the test is to determine the safe working load or to classify a special-purpose pallet, as a s......
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