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ISO 8318 Vibration Package Testing

ISO 8318 Vibration Package Integrity Testing Using Variable Frequencies

ISO 8318 assesses the strength of items subjected to vertical vibrations. As an ISTA and ISO 17025 certified lab, we realize the importance of variable frequency vibration testing. Meeting the ISO 8318 requirements can be difficult. We understand the challenges and guide companies through the process.

Keystone Package Testing creates an accurate test plan to eliminate expensive over-testing. Our proven process helps avoid product launch delays. When packages do not meet the requirements, we assist with finding solutions. Keystone offers competitive pricing and volume discounts.

Request a quote and find out first hand about our competitive pricing, timely process, and outstanding reputation. Contact us to receive more information on ISO 8318 sinusoidal vibration testing.

Summary of ISO 8318 Vertical Vibration Testing on Filled Transport Packages

The international standard specifies two methods. These methods are both used to carry out a sinusoidal vibration test on a complete, filled transport package or unit load. The testing procedures both use variable frequencies to accomplish these tests. ISO 8318 testing method also evaluates the performance of a unit load in terms of the protection that it offers to its contents.

Each method may be performed as either a single or a part of a sequence of tests. The single test investigates the effects of vertical vibration. The sequence of tests measures the ability of a unit load to withstand a distribution system that includes a vibration hazard.

ISO 8318 Random Vibration Testing Procedures

Conditioning

Wherever possible, the test is carried out in atmospheric conditions identical to those used for conditioning. In other circumstances, the test is carried out in atmospheric conditions of those used for conditioning as closely as possible.

Test Procedures

Method 1

The test item is first placed in the predetermined attitude on the vibration table. If a superimposed load is required, the loading procedure will comply with ISO 2234. The packaged product is then subjected to a predetermined vertical sinusoidal vibration. These vibrations can vary up and down between 3 Hz and 100 Hz.

The acceleration is measured with an accelerometer which is attached to the table as close as possible to the test item. Lastly, horizontal frequency components may be present. Its acceleration is not recommended to exceed 20% of the value for the vertical component.

Method 2

A resonance search test is performed over one or more complete sweep cycles applying a suitable lower-level acceleration. This typically can range from 0,2 g to 0,5 g. The acceleration is then recorded and measured on the test item and table.

The most severe and critical resonances are determined. These may usually be up to three. Lastly, the endurance test is performed.

This is performed by sweeping over a frequency range varying between ± 10% of the defined resonance frequency. The procedure is repeated for other selected severe or critical resonances.

Test Report

After ISO 8318 Sine Testing is completed, the data included within the report introduces general and specific information. General details may encompass the date, time, location, and test engineer. More specific data about the testing protocol and package performance may include, but is not limited to:

  • A statement to the effect that the results related only to the test item.
  • The number of replicate test items tested.
  • A full description, including dimensions, structural and material specifications of the test item.
  • A description of contents, if simulated or substituted contents were used.
  • The duration of the tests.
  • The method of restraint.
  • The type of apparatus used.
  • Any deviations from the test method described in this international standard.

Significance of ISO 8318 Sine Vibration Laboratory Testing

ISO 8318, also known as “Package Testing – Vibration Testing of Filled Transport Packages,” provides a standardized approach to evaluate the ability of packages to withstand the dynamic stresses experienced during their distribution.

Vibrations experienced during transportation can cause shifting, rubbing, or impact between the product and its packaging, leading to damage, breakage, or spoilage. By subjecting packages to controlled vibration conditions, ISO 8318 testing enables manufacturers to detect vulnerabilities and make necessary improvements, ultimately ensuring the integrity and protection of the product.

Additionally, package vibration testing can lead to significant cost savings in the long run. By identifying potential weaknesses early in the development process, manufacturers can make informed design modifications to improve the package’s ability to withstand vibrations. This proactive approach reduces the likelihood of product damage or loss during transportation, minimizing the need for replacements, refunds, or customer complaints. Moreover, it helps prevent delays in the supply chain and associated costs, including storage, rework, and reshipment.

Expert ISO 8318 Sine Wave Vibration Integrity Testing

Keystone can accommodate flexible and rigid packages of all sizes, including large pallets. Our team strives to give our customers more time and energy on product development instead of testing. Keystone has a full lab of test equipment which permits us to provide short lead times on scheduling.

Contact us to learn firsthand why so many companies partner with Keystone to achieve their supply chain certification needs.

 

For more ISO testing standards, follow the links below:

 

Interested in the EMC/EMI, climatic, dynamic, shielding effectiveness, or IP Code testing of a product? Follow the corresponding links or www.keystonecompliance.com for more information.