The Edge Crush Test, or ECT, is a newer test developed to look specifically at how much force a corrugated material can withstand on its edges without crushing. Instead of applying force to the face of the corrugated material, as the Mullen Burst Test does, ECT applies force to the edge.

What is ECT material?

ECT is a measure of the edgewise compressive strength of corrugated board. … It is measured by compressing a small segment of board on edge between two rigid platens or plates perpendicular to the direction of the flutes until a peak load is established.

What is ECT unit?

ECT is a measure of the edgewise compressive strength of corrugated board. 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 32 ECT corrugated boxes?

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. test boxes, which provide more strength and protection than 32 ECT boxes – a budget-friendly alternative for lightweight shipments.

What does 48 ECT stand for?

ECT stands for Edge Crush Test and is one of the most popular methods of determining the actual strength of a corrugated box or other corrugated material. … Ultimately, edge crush testing shows us two things: box compression strength and stacking strength.

Is a 44 ECT a double wall?

This type of box can be purchased in single or double wall to resist tearing, splitting, or bursting. All of our heavy duty boxes are 44 ECT and are approximately 35% stronger than standard boxes.

What is the difference between Mullen and ECT?

ECT is often looked at by customers who are concerned about the max weight a box can stand during pallet shipments or warehouse stacking. The most common and universal boxes used today are 32 ECT. The Mullen Test measures the bursting strength or the force required to burst a hole through the corrugated material.

How much weight can a 32 ECT box hold?

Box TypeMaximum Carton Weight (Box and Contents)Maximum Outside Carton Dimensions (L + W + D)Single-wall 32 ECT65 lbs.75 in.Single-wall 200# Mullen Test*65 lbs.75 in.Double-wall 275# Mullen Test110 lbs.95 in.

Is ECT 32 good?

ECT offers customers a gauge for how heavy duty their box is. If you need to stack product that is small but very heavy, a small box with a high ECT would work best. If you are storing a large lightweight object, you can opt for a larger box with a low ECT. For most applications, a 32 ECT will suffice.

What is meant by edge crush test?

An edge crush test (ECT) is a laboratory test method used to measure the cross-section crushing of corrugated cardboard. This offers the necessary information to determine the ability of a sheet of corrugated cardboard to resist crushing forces.

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How is ECT performed?

With ECT, electrodes are placed on the patient’s scalp and a finely controlled electric current is applied while the patient is under general anesthesia. The current causes a brief seizure in the brain. ECT is one of the fastest ways to relieve symptoms in severely depressed or suicidal patients.

Is ECT still used?

But electroconvulsive therapy (ECT) is still being used — more in Europe than the United States — and it may be the most effective short-term treatment for some patients with depressive symptoms, a newly published review in the journal The Lancet suggests.

What are the indications for ECT?

• Need for a rapid antidepressant response.
• Failure of drug therapies.
• History of good response to ECT.
• Patient preference.
• High risk of suicide.
• High risk of medical morbidity and mortality.

What ECT 40?

40 Edge Crush Test (ECT): Great force, can hold a maximum load of 80 lbs, and over 40 lbs of pressure needed to rupture or be punctured.

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).

What is Mullen in paper making?

A test performed to measure the bursting strength of paper or paperboard. Mullen tests are performed for each side of a paper or paperboard, and the bursting strength can be expressed as the average of both sides. … Bursting strength expressed as a percentage is called the percent Mullen.

What is Mullen packaging?

Mullen, or burst test is one of two industry standards for testing corrugated packaging. The Mullen test was the original test used throughout the industry. Mullen tests the liner-boards strength against bursting. This is ideal when you are packing products that would put pressure on small spots.

What is Mullen rated?

The Mullen Test (also known as the “burst test”) has widely used for most of the last century. This indicates how the box might perform when handled individually and perhaps subject to rough handling as well.

What is Mullen burst?

The Mullen Burst Test uses a pressurized diaphragm to measure how much pressure (in pounds per square inch) the side of a corrugated box can take before it breaks. And analogy to this would be: how hard do you have to punch the side of a box to break through it.

What is RCT paper?

The ring crush test (RCT) is used to determine the ring crush resistance of a paper strip formed into a ring with a standardized length and width.

What is the thickness of triple wall corrugated?

Groove G or N with a thickness of about 0.8 mm; Groove O, with a thickness of about 0.5 mm. But, there may be different groove combinations on the same cardboard box, for example, a BC groove carton can have a 2.5mm groove and a 4.5mm groove.

What is BC flute?

BC Flute. Being between 6mm and 7mm in thickness, this is a double walled container combining B and C fluting. The most common applications for a cardboard such as this is transit boxes/ shipping boxes and items that require a higher level of transit protection.

What is burst strength?

Burst strength is the amount of internal pressure a pipe can withstand before the pipe fails or bursts. … Trenchless rehabilitation methods such as sliplining, thermoformed pipe and pipe bursting can be used to rectify or replace burst pipes without the need to excavate.

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.

How do you increase bursting strength of corrugated box?

The number of plies can be added in a corrugated sheet to enhance the strength of the boxes. Hence, we can conclude that one can easily increase bursting strength by increasing the number of plies of a fluted paper to enhance the strength of the corrugated boxes.

Are corrugated boxes strong?

Corrugated, on the other hand, is the packaging material of choice for shipping boxes. When formed into boxes, corrugated sheets are ideal for shipping because they are very strong and durable, and are easily recycled.

What is double wall corrugated cardboard?

Double wall cardboard boxes are heavy-duty storage boxes produced using two layers of corrugated cardboard stacked side by side. They are ideal solutions for a long list of storage and transport tasks where extra protection is required.

How much weight can be stacked on a 29 ECT box?

Minimum Bursting Test, Singlewall, Doublewall (lbs. per sq. in)Minimum Edge Crush Test (ECT) (lbs. per in. width)Maximum Weight of Box and Contents (lbs.)1752950200326525040802754495

What is ECT and BCT?

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 the formula for ECT?

The fourth and final step is to calculate the ECT dose that is set, measured in units of electrical charge; that is, millicoulombs (mC). The dose is calculated using the formula: Charge = current × time.

What is BCT value?

BCT, which stands for box compression test, is a test done to determine the strength of a corrugated board box in direct measure of its stacking strength. Box strength will change as they are transported from one place to another while stacked and also based on the weather conditions.