ISTA 1H compares the relative performance of package and product design variations using random vibration and shock tests (drop or incline impact). The procedure creates harsh, worst-case hazards in a laboratory environment.
The results of the test are used to evaluate the effectiveness of the packaging for the intended transportation method, whether by land, sea, or air. This data is then used to make any necessary improvements to the packaging for better product protection during shipment. Purple Diamond Testing offers ISTA 1H testing as part of our packaging distribution testing services.
Interested in ISTA 1H testing? Contact us for a free quote!
| Test Category | Test Type | Test Level | For ISTA Certification |
|---|---|---|---|
| Atmospheric Preconditioning | Temperature and Humidity | Ambient | Required |
| Vibration | Random | Overall Grms level of 1.15 | Required | Shock | Drop | 6 in (150 mm) | Required |
| Incline Impact | 69 in (1.7 m) per second impact velocity | - | |
| Horizontal Impact | 69 in (1.7 m) per second impact velocity | - | |
| Shock | Rotational Edge Drop | 8 in (200 mm) | Required when not testing face 1 |
ISTA 1H uses random vibration testing, while ISTA 1B uses fixed displacement vibration. Random vibration testing is often considered more reflective of real-world transport scenarios.
Only one sample is required for ISTA 1H testing. However, it is recommended to test at least 5 samples for more accurate results.
There are several other ISTA procedures you can turn to depending on the type of product and transportation method you will use. For packaged products requiring compression testing, ISTA 1D is recommended. For international distribution, consider ISTA 2B. And for unitized loads, ISTA recommends ISTA 1E.
Purple Diamond is an ISTA-certified testing lab that is also ISO 17025 accredited. Our team of experts will help you optimize your packaging, prevent distribution damage, and enhance your customer experience with innovative testing solutions and data-driven analysis. If you’re looking for ISTA testing, ASTM testing, or even package engineering, design, and consulting, request a quote from our team.
Whether you’re looking for a team of experts to engineer your new packaging product for optimal sustainability, or seeking a team who can ensure your products stay safe and secure during transport, Purple Diamond can help.
© 2025 Purple Diamond
© 2025 Purple Diamond
