The Edge Compression Test method or ECT describes procedures for determining the edgewise compressive strength, parallel to the flutes, of a short column of single-, double-, or triple-wall corrugated fiberboard (constant strain rate, or constant load rate). The test method includes procedures for cutting the test specimen (saw cutting and knife cutting), one procedure for specimen support (spring support clamp fixture), and two procedures for applying the ECT method, compressive force (constant strain rate, or constant load rate). Studies have shown that any combination of these procedures will yield similar test results with the stated precision (Section 9). This test accomplishes the same crush force measurement as TAPPI T 838 and FEFCO No. 8, but all three tests call for different geometry of the fluted cardboard specimen and clamps.
Equipment Required
The ECT method requires a precise compression test machine with force capacity no less than 500 lbs. By means of our ECT testing expertise and modular product design, we will help find the solution that is right for you. Give our test engineers a call today for help configuring the best test machine and accessories according to your standard.
Recommended Test Machine
Forces up to 10 kN (2,250 lbf)
Low force tabletop systems
Modular series of five frame options with adjustable test space
Affordable testing option for tension, compression, bend, peel and much more
Forces up to 5 kN (1,125 lbf)
Low force tabletop systems
Tests at speeds up to 2,500 mm/min (100 in/min)
Best for high travel or high elongation test requirements
Force range of 5 kN to 600 kN (1,125 lbf to 135,000 lbf)
Adjustable test space
The most popular choice for static tension and compression tests
These dual column testers are available in both tabletop and floor standing models
Recommended Testing Accessories
Designed in accordance to Tappi T 839
Standard load ratings up to 300 kN (67,500 lbf); higher ratings available upon request
Platen diameters from 56 mm to 346 mm (2.2 in to 13.6 in)
Available in steel, stainless steel, aluminum, or delrin construction
Machined surface for flat interface with test specimen
