How to evaluate glove cut ratings

We want to assist you in understanding how cut test methods are performed and calculated into a Cut Level Rating. Currently the cut resistance of protective gloves is assessed using two test methods:
  • For the European market, the mandatory standard is EN 388 (first version: 1994 – current version: 2004).
  • In the U.S. market, the standard is ASTM F1790 (first version: 1997 – current version: 2005). This method was adopted by ISO in 1999 as an international standard: ISO 13997.

EN method

EN method uses a circular blade with a constant pressure of 5 N (~ 500 grams) applied to the blade. The blade makes an alternating horizontal movement over 50 mm (2 inches) of the glove material and rotates in the opposite direction of the movement. This results in a sinusoidal blade speed with a maximum of 100 mm/second.

The value measured is the number of cycles it takes to cut the material. A cotton reference material is used to control the sharpness of the blade. Test on the cotton material is performed before and after test on glove material, then the average value of cycles for the cotton material (Cn) is calculated. This value is correlated with the value obtained for glove material (Tn) using the following equation: In = (Cn + Tn)/Cn, where “In” is the index value for the test sequence. Index value is a number without unit and is also called “cut index”. Five test sequences (cut on the reference/cut on glove material/cut on the reference) are performed and the average index value I is calculated.

EN 388 defines five levels of cut resistance with level 1 being the least and level 5 being the most cut-resistant gloves:

A drawback of the EN test method is that it is not, for the most part, representative of the cut risks end-users are exposed to in industrial workplaces:
  • the 5 N (~ 500 grams) pressure applied on the blade is too low;
  • the alternating displacement of the blade makes the contact time with the glove sample very short.
Moreover, EN 388 is not suitable for high cut resistance materials. High cut resistant materials dull the blade quickly by the numerous alternating movements required to cut the sample, thus results are overestimated.

ASTM method

ASTM method uses a 50 mm (2 inch) length straight blade, which is moved one time across the glove material under a given load, at a constant speed of 2.5 mm/s. The test result is expressed as the load required to cut the glove material after the blade travels 20 mm (3/4 inch). This load is called rating force (unit of grams force), with a larger load indicating a higher cut resistance. A series of tests are performed with different loads (minimum three) and blade displacements necessary to cut the sample are recorded. From this data, load vs. distance curve is plotted and the rating force is determined.

ASTM method is more representative of workplace conditions vs. the EN method:
  • The straight blade cuts the material in a single stroke; which is the mechanism involved when there is a risk of laceration with a sharp edge such as knife or box cutter;
  • Various weight loads are applied to the blade as it travels across the glove material.
ASTM F1790 does not specify any level of performance. The classification for cut resistance is provided by ANSI/ISEA 105-2005 standard. ANSI/ISEA refers to the previous version of ASTM test method (ASTM F1790-97) where the reference displacement for the blade was 25 mm (1 inch) vs. 20 mm (3/4 inch) for the current version ASTM F1790-05.

It is worth noting both cut test methods use control weight, not sudden force, which is very often the case in the workplace. The current ASTM test method will provide a reliable glove selection component when choosing cut protective gloves to protect workers in your facilities.

Moderate/standard protection: Level 1 to 2 according to ANSI/ISEA cut standard. These woven gloves allow the skin to breathe more easily. They are recommended for continuous use in situations where the objects handled are only mildly abrasive, i.e. using a safety knife or handling untrimmed sheet metal.

Heavy duty/high-performance protection: Level 3 to 5 according to ANSI/ISEA cut standard. These gloves have been coated or are multi-layered to improve their resistance to frequent contact with sharp or abrasive objects. As a result, they have a longer service life, i.e. repeated handling of heavy and rough, sharp-edged parts.

Did you enjoy this article? Click here to subscribe to ISHN.

You must login or register in order to post a comment.



Image Galleries

Scenes from the World of Safety

Sights, signs & symbols from the National Safety Congress & Expo held in San Diego, CA, September 15-18

3/31/15 11:00 am EST

Changes to NFPA 70E® – What You Need to Know

NFPA ® for Electrical Safety in the Workplace is revised every three years, providing the most up-to-date requirements for safe work practices to reduce exposure to electrical hazards. This program analyzes several significant changes in 70E ® and is designed to clarify the reasoning behind the changes, and assist in determining how the changes impact employees and employers.

ISHN Magazine


2015 March

Check out ISHN's March issue, which features articles about moisture wicking technology, toxic gas detection and fall protection.

Table Of Contents Subscribe


M:\General Shared\__AEC Store Katie Z\AEC Store\Images\ISHN\safetyfourth.jpg
Safety Engineering, 4th Edition

A practical, solutions-driven reference, Safety Engineering, 4th edition, has been completely revised and updated to reflect many of today’s issues in safety.

More Products

For Distributors Only - January 2015



For Distributors Only is ISHN's niche brand standard-sized magazine supplement aimed at an audience of 2,000 U.S. distributors that sell safety products. Circulation only goes to distributors. 



Facebook logo Twitter YouTubeLinkedIn Google + icon

ishn infographics

2012 US workplace deathsCheck out ISHN's new Infographic page! Learn more about worker safety through these interactive images. CLICK HERE to view the page.