ISTA 2A Package Integrity Testing of Packaged-Products Weighing 150 lb or Less

ISTA 2A: Package Integrity Testing of Packaged-Products Weighing 150 lb or Less

ISTA 2A is designed for advanced testing of packaged products weighing 150 pounds or less. As an ISTA and ISO 17025 certified lab, we realize the importance of partial simulation testing. Meeting the ISTA 2A requirements can be difficult. We understand the challenges and guide companies through the process.

When packages do not meet the requirements, we assist with finding solutions. Keystone Package Testing creates an accurate test plan to eliminate expensive over-testing. Likewise, Keystone takes a consultative approach throughout the entire test program. We have a reputation for helping customers achieve their package certifications.

Request a quote to see why so many companies partner with Keystone Package Testing. Contact us to receive more information on partial simulation performance testing.

Summary of ISTA 2A Transit Compliance Testing

The ISTA 2 Series tests are a combination of basic integrity test elements from the ISTA 1 Series and advanced test elements from ISTA Series 3. ISTA 2 challenges the capability of a packaged product to withstand transportation hazards.

More specifically, ISTA Procedure 2A shipping testing is designed for packaged products weighing 150 pounds or less. Products that are individually packaged on a skid or pallet that weigh more than 100 pounds should not be tested for this procedure.

Additionally, the ISTA 2A test procedure can be used to compare relative performance of package and product design alternative. The standard is also considered for the evaluation of packaged-products intended for international distribution.

ISTA 2A Package Integrity Testing Procedures

The test sequence of ISTA 2A includes atmospheric preconditioning, which is essentially a soak at ambient room temperature for six hours. The next step is atmospheric conditioning. This involves a controlled temperature and humidity for a specified duration. Most of the test durations are 72 hours.

Once the ISTA 2A conditioning test is completed, the package is compressed. There are three options available. The first is machine apply and release. The second is machine apply and hold. The third is the use of a weight and load spreader. When conducting compression tests, a box failure that could result in a stacking failure is considered as a failed test.

Following the ISTA 2A compression testing the package will undergo vibration testing. Like compression, sellers have a choice between methods. One method is fixed displacement vibration. The other method is random vibration.

Once vibration testing is complete, the next step is shock testing. Shock testing offers three methods, of which one must be selected. The first available method is drop.

The next method is incline impact. The third method is horizontal impact. The ISTA 2A test drop height will vary with the weight of the packaged product. This applies to all three of the shock test methods.

After shock testing, another round of vibration testing is performed. It is important to note that the vibration testing in sequence six does not have to match the vibration test method used in sequence four. The methods can match or be different. It is completely up to the seller as to what methods are selected. The vibration testing is completed on four faces of the package. The vibration test duration varies on the face being tested but ranges from 10 minutes to 30 minutes.

Included below is a summary of the various test sequences for ISTA 2A transit testing package validation:

Sequence #Test CategoryTest TypeFor ISTA Certification
1Atmospheric PreconditioningTemperature and HumidityRequired
2Atmospheric conditioningControlled Temperature and HumidityRequired
3Compression (Alternative methods allowed-select one test type)Machine Apply and ReleaseRequired
Machine Apply and Hold
Weight and Load Spreader
4Vibration (alternative methods allowed-select one test type)Fixed DisplacementRequired
5Shock (alternative methods allowed-select one test type)DropRequired
Incline Impact (Conbur)
Horizontal Impact
6Vibration (alternative methods allowed-select one test type)Random FixedRequired

Accredited ISTA 2A Package Compliance Testing Laboratory

As an e-commerce package testing and ISTA-certified test lab, Keystone Package Testing offers expertise in ISTA 2A testing. Our lab features four shakers and nearly 20 temperature and humidity chambers.

Additionally, our trained technicians, engineers, and report writers provide a tremendous customer experience and valuable technical insight. Our lead times are short. We offer affordable pricing and expedited reports.

Contact us when you are ready to experience the Keystone Package Testing difference.


Other ISTA Standards:


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