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ISTA 1C Integrity Package Testing

ISTA 1C testing protocols determine the integrity of individual packaged-products over 150lbs. As an ISTA and ISO 17025 certified lab, we realize the importance of ISTA 1C integrity testing. Meeting the ISTA 1C 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 Compliance provides comprehensive reports shortly after completion of the testing. Our pricing is competitive and we offer volume discounts. Lastly, our proven process helps avoid product launch delays.

Request a quote and find out first hand about our competitive pricing, timely process, and outstanding reputation. Have a question about ISTA 1C integrity testing? Contact us and we will determine the best course of action.

Summary of ISTA 1C Package Integrity Testing

ISTA Test Procedure 1C is an integrity test that covers the testing of individual packaged products weighing 150 pounds (68 kg) or less when prepared for shipment. There is one exception, which is individual packaged-products on a visible skid or pallet that weigh more than 100 pounds (45 kg). may be tested according to Test Procedure 1E or Procedure 3E.

ISTA 1C challenges the capability of the package and the product to withstand transport hazards. The tests are simulations of actual transport hazards and do not necessarily comply with carrier packaging regulations.

The test sequence for ISTA Procedure 1C is as follows:

Atmospheric Measurement Test Block – Temperature and Humidity.

Compression Conditioning Test Block – Compression.

Vibration Test Block – Fixed Displacement.

Vibration Test Block – Random.

Shock Test Block – Drop or Impact.

The chart below is from the standard and provides more guidance on the testing procedure and requirements:

Sequence #

Test Category

Test Type

For ISTA Certification


Compression Conditioning

Machine or Static




Fixed Displacement




Alternative Drop








Alternative Incline




Alternative Horizontal


Expert ISTA 1C Package Integrity and Transit Testing

As an ISTA-certified package testing lab, Keystone Compliance can meet your package testing needs, including ISTA 1C. By providing quick turnarounds, competitive pricing and engineering assistance, Keystone Compliance has become a leader in the package test lab industry.

In addition to package transit testing, Keystone has a full scope of expertise including high impact shock, sterile barrier, and temperature validation. We 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.

Contact us to learn first hand why so many companies partner with Keystone to achieve their packaged-product certification needs.