PET bottles are widely used for packaging and storing. Due to its strong barrier properties against moisture, water, humidity and dust, PET bottles are perfect to use for liquids, powder and solid contents. Despite having some predefined parameters, the manufacturer has to do some mandatory tests, before declaring it fit to use. Before conducting any tests, the manufacturer should be aware of subjected real-life conditions, the storing conditions, warehouse conditions, transportation, etc. To satisfy the working conditions, a series of tests can be performed.
Top load testing – This test determines the load bearing capacity of the bottle or jar, depending upon the industrial demand. A top load tester applies force on the test sample from the top, until deformity occurs. The other way to assess the load bearing capacity is, preset the load in the machine and investigate if any deformity occurs when a certain load is applied to the bottle. This test is an important part of the quality check. If the buckling appears from similar spots, repeatedly, this means there is a defect in the moulding process or preforms are faulty. Thus, mass production can be postponed and
preforms can be sent for reconsideration.
Bottle burst testing – In this test, the bottle is tested for pressure bearing capacity. The bottle is clamped in bottle burst tester and a pneumatic pressure is created inside the bottle. The bottle is made to hold this pressure for some time or pressure is exerted till it bursts.
For more information regarding top load tester, bottle burst tester or any other PET bottle testing machine, contact us.