How do you do the Edge Crush Test?
It is measured by compressing a predefined section of board on its edge between two rigid platens. This compression is performed perpendicularly to the direction of the flutes until the board collapses and a peak load is reached.
What is the purpose of Edge Crush Test?
The edge crush test is a laboratory test method that is used to measure the cross-direction crushing of a sample of corrugated board. It gives information on the ability of a particular board construction to resist crushing.
What does 32 Edge Crush Test mean?
The higher the number, the stronger the corrugated box. The Edge Crush Test, which was developed in the 1990’s, measures the stacking strength of corrugated board – how much top to bottom pressure a box can withstand before crushing. Boxes conforming to the Edge Crush Test standard are identified as 32ECT, 44 ECT, etc.
How do you measure an edge compression test?
How to Use the Edge Crush Test. The resistance of edge crush, R, is measured and specified in kilonewtons per meter (KN/m) and it can be calculated as following; R = 0.01 x Fmax, where Fmax shows the average value of maximum force and is calculated in newton.
What is ECT value?
ECT is measured in pounds per lineal inch of load bearing edge (lb/in), however it is typically expressed as an ECT value such as 44 ECT. This value is then used to calculate a box’s theoretical compression strength.
What does 200 mean for boxes?
200 lb. test refers to bursting strength, while 32 ECT refers to stacking strength. Boxes that meet 200 lb. test will also exceed 32 ECT stacking strength. Uline and UPS recommend 200 lb.
What is the difference between 32 ECT and 200 lb test?
What is the difference between 200 lb. test boxes and 32 ECT boxes? 200 lb. test refers to bursting strength, while 32 ECT refers to stacking strength.
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.
How is Cs of corrugated box calculated?
Stack load = (6 – 1) X 5.2 = 26Kg of weight will be on the lowest carton. This box must be able to withstand this calculated test force, otherwise, the stack may collapse, the box may deform, and the product/s inside may be damaged.
What is bursting factor of corrugated box?
What is Bursting Factor of Corrugated Boxes? Bursting Factor is that property which can be calculated after measuring the bursting strength of the boxes. The bursting factor can be calculated by dividing the bursting strength of a board by the basic weight of the paper. This property is expressed in grams per sq.