ISTA 7D Package Testing

ISTA Procedure 7D package testing is the standard for the temperature testing of transport packages. This package test standards covers the thermal performance testing of packaged products to evaluate the effects of external temperature exposure. ISTA 7D shipping tests can be used for the development of temperature-controlled transport packages made of any material. It is designed the measure the relative ability of a package to protect a product when exposed to test cycles of temperature conditions.

It is important to note that the temperature test cycles in this test standard are general simulations. This standard does not represent a worst-case temperature exposure. If the testing required is for specific government, industry, laboratory or validation conditions, those requirements would supersede ISTA 7D.

One sample unit is required for testing. However, it is important that samples should be the untested actual package and product. If substitutes are needed, they should be as close to identical as possible. Identical should be measured in terms of content, composition, thermal mass and consistency.

An ISTA 7D test program starts with preconditioning. This preconditioning involves storing the test sample at its required storage temperature for a minimum of 24 hours. Once the preconditioning is completed, the temperature testing can commence.

Different types of products are assigned different temperature profiles. Some of the examples include 24-hour domestic small package express freight transport and 72-hour international expedited airfreight transport. Each temperature profile has two sub profiles. One is for winter, referred to the cold shipping and receiving. The other is summer, referred to as the hot shipping and receiving.

For most of the temperature profiles, there are four or five temperature cycles ranging from two hours to 56 hours per cycle. Each cycle has a specified steady temperature target that must be maintained during the entire cycle. Most of the cold temperature cycles typically range from 14 degrees Fahrenheit to 65 degrees Fahrenheit. Most of the hot temperature cycles range from 72 degrees Fahrenheit to 95 degrees Fahrenheit. There is some cross over in the cycles during the 72-hour international expedited airfreight transport profile.

In addition to the steady-state temperature testing, there are also ramp profiles that simulate drastic temperature swings over shorter periods of time. The profiles can range from negative four degrees Fahrenheit to 65 degrees Fahrenheit on the cold side and 72 degrees Fahrenheit to 113 degrees Fahrenheit on the hot side. During these ramp profiles, the typical transition time permitted from one temperature to another is two hours.

Keystone Package Testing is an ISTA-certified test lab with significant experience in ISTA 7D transit testing. We have nearly 20 temperature and humidity chambers ranging from large walk-in chambers to small reach-in chambers. This fleet of chambers allows us to have short lead times on scheduling. It also allows us to have affordable pricing since we will always use the appropriately-sized chamber for your products.

We have experienced award-winning growth, due in large part to customer experience we offer. Our technicians and engineers are experts. They design and implement test programs that meet the requirements. There is no over testing or under testing. When problems arise, they offer solutions such as alternatives for package design or package materials. Our test reports are concise and completed in a timely manner once the test program is done. Contact us to receive a quote. You will witness why so many companies partner with Keystone to receive their ISTA 7D temperature testing.

 

Other ISTA Standards: