ASTM D6055 Mechanical Handling of Unitized Loads, Large Shipping Cases & Crates

ASTM D6055 shipping container testing evaluates the integrity of unitized loads, large cases, and crates. Keystone Package Testing understands the challenges of meeting ASTM D6055 requirements. Additionally, we guide companies through the testing process and help them achieve compliance.

We provide accurate test reports quickly with detailed recommendations. As a result, our testing plans help prevent costly over-testing. Furthermore, we maintain clear communication throughout the entire test process. Keystone Package Testing delivers the confidence that your packaging meets your performance needs.

Request a Quote to learn why we are one of the fastest-growing package test labs in the country. Contact us to receive more information on ASTM D6055 testing.

Summary of ASTM D6055 Standard Test Method Information

ASTM D6055 evaluates how well package contents withstand normal handling with standard mechanical equipment. Additionally, the standard does not apply to individual drums or palletized drums.

However, not every test method applies to all containers or loads. Therefore, users should select procedures that match their specific package and handling conditions. ASTM D6055 also evaluates whether shipping units can withstand mechanical handling with user-specific equipment.

ASTM Mechanical Handling Testing Procedures

Before testing, it is recommended that atmospheric conditioning is conducted in accordance with ASTM D4332.

An accredited test lab must be able to provide the testing using one of the following six general test methods:

Test Method A: Fork Truck Handling

This method is used for testing the ability of the shipping unit to withstand repeated handlings of a fork truck. In performing the fork truck handling test, use an actual lift truck with a fork attachment to lift the shipping unit. The lift truck and blade(s) shall be capable of handling the size and quantity of products per current practice.

Test Method B: Spade Lift Test

Test Method C: Clamp Handling Test

This method evaluates shipping units lifted with hydraulic clamp attachments. It determines whether the unit can withstand repeated side compression and lifting during clamp handling.

During the clamp handling test, use an actual lift truck with the appropriate clamping device. Additionally, measure the clamping force between the platens with load cells or another suitable measurement device.

Test Method D: Push-Pull Handling Test

The push-pull handling test evaluates whether a unitized load on a slip sheet can withstand repeated handling. During this test, use an actual lift truck with the appropriate gripper jaw. The gripper jaw pulls the load onto the load plate using the slip sheet tab.

Alternatively, use any suitable pulling device equipped with a gripper jaw. This method helps verify that the unitized load maintains integrity during repeated push-pull handling.

Test Method E: Grabhook Test

This test method uses grabhooks to evaluate whether a shipping unit can withstand horizontal pressures from grabhooks. During the test, lift the case or crate with grabhooks or slings attached to a hoist.

Additionally, you can perform the test with a tackle system. You can also lift the case or crate with jacks and place it into grabhooks or slings supported by a truss system. These methods help simulate handling stresses during lifting operations.

Test Method F: Sling Tests

The method is used for lifting by wire rope, cable, or woven fiber slings to determine the ability of the shipping unit to withstand the compression of slings.

Additional Testing

Additional test methods that apply to mechanical handling and rough handling tests of unitized loads and large cases and crates can be used. These can include incline impact tests, described in Test Method D 880; horizontal impact tests, described in Test Method D 4003.

Test Report

After completing testing, a report is written comprising the following information:

• Conditioning
• Dimensions of the unit under testing
• Description of the contents of the unit under testing
• Description of the specimen after testing and if any damage occurred
• Detailed record of tests including parameters, procedures used, angle of free-fall drop, etc.

Expert Mechanical Handling of Unitized Loads and Large Shipping Cases and Crates

Keystone Package Testing can accommodate flexible and rigid packages of all sizes, including large pallets. We have a full lab of test equipment which permits us to provide short lead times on scheduling. In addition to ASTM D6055 testing, Keystone has a full scope of expertise including leak penetration, inclined impact, and compression.

With significant experience, we not only provide experienced testing but also assist with developing a test plan and identifying potential solutions when packages do not meet the requirements. Contact us to see firsthand why so many companies partner with Keystone Package Testing to meet their transit testing needs.

For more referenced ASTM standards and similar testing, please follow the links below:

• ASTM D 880 Test Method for Impact Testing for Shipping Containers and Systems
• ASTM D 996 Terminology of Packaging and Distribution Environments
• ASTM D 4003 Test Methods for Programmable Horizontal Impact Test for Shipping Containers and Systems
• ASTM D 4169 Practice for Performance Testing of Shipping Containers and Systems
• ASTM D 4332 Practice for Conditioning Containers, Packages or Packaging Components for Testing

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