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EN 388: 2016 (ISO 13997)

EN 388: 2016 (ISO 13997)

Uses Coup Test as well as the TDM-100 cut machine (ISO 13997) to test cut level to accommodate limitations (dulling of the blade) in the Coup Test when testing strong cut-resistant fabrics

Coup Test measures number of cycles required to cut through the glove > Reporting is 1 - 5

TDM-100 measures NEWTONS of force up to 30+N > Reporting is A - F

Abrasion: 0 - 4

Blade cut resistance (Coup Test): 0 5 / X

Tear: 0 4

Puncture: 0 4

Cut Resistance also ISO 13997 (TDM-100): A F / X

Impact: P / blank

EN 388 s testing method using only the Coup Test would at times result in two different gloves both having a cut level 5. However, after being tested with the ISO 13997 method where the TDM machine is used, the same gloves could score a cut level 5/C while the other an 5/E-a difference of up to 2000 grams of force! The new levels make it much easier to identify the different cut protection levels.

Using a circular blade that moves back- and- forth and under a fixed load of 500 grams, the Coup test machine measures the ratio of the number of cycles required to cut through the test sample vs. the reference material.

COUP TEST CUT MACHINE

The Tomodynamometer (TDM-100) is used to determine the load required to cut through a glove sample using a straight-edge blade that moves along a straight path within a distance of 20mm. The sample is cut 5x each at three different loads.

TDM-100 CUT MACHINE

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WHAT YOU NEED TO KNOW ABOUT THE NEW GLOBAL CUT STANDARDS

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UNDERSTANDING YOUR CUT GLOVE IDENTIFYING YOUR PROTECTION: REPORTING & MARKINGS

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THE NEW NORM STATES THAT IF BLADE DULLING OCCURS DURING THE COUP TEST, THE ISO 13997 TEST METHOD USING TDM-100 MUST BE PERFORMED.

new blade

VARIABLE LOAD (g) FIXED LOAD (500g/N)

20mm

Ratings = Mass required Ratings = Ratio of number of cycles

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