ISTA 1G

ISTA 1G is a test for packaged products weighing 150 lb (68 kg) or less (random vibration). It is part of ISTA series 1 tests. This test is one of the basic test procedure and is to be looked at as a screening test.

Micom offers ISTA 1G testing as part of its Packaging testing services.

ISTA 1G Uses and Factors to Consider

ISTA 1G can be used to evaluate the performance of a packaged product and compare the relative performance of package and product design alternatives. While testing to ISTA 1G, the package and product are considered together and not separately. Both product and package need to be tested together. This standard does not cover specific conditions of transit such as moisture, pressure or unusual handling. Should you wish to address these distribution hazards, you should consider ISTA series 2 and 3 tests instead.

ISTA 1G calls for the use of a random vibration test. Alternatively, ISTA 2A or ISTA 3A or ASTM D4169 should also be considered. To use fixed displacement vibration instead of random vibration, use ISTA 1A.

ALL ISTA standards require a minimum of 1 sample to be tested. For final packaging design purposes a higher number of samples is recommended; ideally 5 or more. However, only testing one is mandatory.

Packages that have already been subjected to the rigors of transportation prior to the test cannot be assumed to represent standard conditions. In order to ensure testing in optimal condition, products and packages shipped to certified laboratories for testing must be over-packaged for shipment to the laboratory or repackaged in new packaging at the laboratory.

ISTA 1G Test sequence

The tests shall be performed on each test sample in the sequence indicated in the following table:

Sequence No. Test Category Test Type Test Level For ISTA Certification
1 Vibration Random Overall  Grms level of 1.15 Required
2 Shock

(Alternative methods allowed – select one test type)

Drop Height varies with packaged-product weight Required
Incline Impact (Conbur) Impact  Velocity varies with packaged-product weight
Horizontal Impact Impact Velocity varies with packaged product weight

Typical Experimental Parameters

  • Number of specimens/product: 1 (min.)
  • Maximum sample weight: 150 lbs

Other Related Test Methods

For additional related test methods to ISTA 1G, we invite you to consult the following resources: ISTA TestingPackage Testing or ASTM Packaging.

If you have any questions about ISTA 1G package tests, we invite you to contact our material testing laboratory today. We will review your custom testing requirements, provide feedback and answer your questions.