How do you test the strength of a carton?
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How do you test the strength of a carton?
There are two common methods for measuring corrugated material strength in the carton industry: the Burst (Mullen) Test, and the Edge Crush Test (ECT). Let’s take a closer look at how each test is done, how they compare and how to understand ratings from each type of test.
How do you calculate box strength?
The best way to calculate Bursting Strength of a 5 Ply Corrugated…
- The best way to calculate Bursting Strength of a 5 Ply Corrugated Box.
- Burst factor = Burst strength (gf/cm2) / Grammage (grams/m2)
- Burst Index = Burst strength (kPa) / Grammage (Kg/m2)
How do you measure the compressive strength of corrugated box?
The box testing machine tries to puncture the hole in the corrugated sheet. The device slowly increases the weight on the sample board. After a point, the sample board breaks and the weight at which the sample board breaks is the Burst Strength of the corrugated sheet.
How do I know if my carton box is GSM?
This round sheet cut form the sample is weighed which gives the weight of the material per 100sq cm. When the weight is multiplied by 100, it gives the weight of the material per sq. meter which is the GSM value of the material being tested.
What is carton test?
The carton drop test is a regular part of packaging inspection that professional QC inspectors use to evaluate packaging quality. It’s one of the easiest packaging tests to conduct and requires minimal equipment, formal training and time.
What is burst test?
A burst test is a destructive test and performed to determine the pressure overload capacity of pressure containing parts. The tests are performed with a fluid. working pressure and the pressure when the product completely fails (burst pressure).
How is carton box weight calculated?
Both carriers base their shipment density on 10.4 lbs/cu ft and both will charge the higher of the actual weight or the dimensional weight. The formula used for this calculation is to measure the exterior of the box used, multiply the length times the width times the height, and then divide the result by 166.
How do you measure a carton box?
How do you measure a box?
- The first dimension to measure is length. Length is always the longest side of the box that has a flap.
- The next dimension is width. The width side also has a flap, but is always the side shorter than the length.
- Measure the height of the package. Height is the only dimension without a flap.
What is BCT and ECT?
The ECT (Edge Crush Test) and BCT (Box Crush Test) are two completely separate tests yet they are similar in various ways. The Edge Crush Test involves taking a 2 x 2 cardboard specimen and crushing the edge between compression platens with our lowest cost tabletop machine.
What is GSM test?
The GSM test is a measurement of Grams per Square Meter, and is one of the most important methods of determining the weights of knitting fabric, non-woven fabric or paper cardboard.
How do you increase the strength of a corrugated box?
Compressive strength of linerboard exposed to high moisture conditions can be improved by treatments with water-soluble phenolic resins. The low-molecular weight type resins gave the higher compressive strength, but these also cause more embrittlement of the board than the medium-condensed phenolic resins.