Cut Resistant Glove Selection and Use
Cut-resistant gloves are designed to protect hands from direct contact with sharp edges such as glass, metal, ceramics and other materials. Cut-resistance is a function of a gloves material composition and thickness. You can increase your cut protection by increasing material weight, i.e. ounces per square yard, using high-performance materials such as Spectra, Kevlar, etc., or by using composite yarns made with varying combinations of stainless steel, fiberglass, synthetic yarns and high-performance yarns.
Performance characteristics can also be affected by a material's weight and coatings applied to the outside surface. Lighter weight styles are typically more flexible, resulting in less hand fatigue, while their heavier counterparts will generally provide the wearer with more cut and abrasion protection. Coated gloves enhance grip, especially on slippery surfaces. However, some coated gloves may not be appropriate for food handling applications.
- Spectra Fiber: Ultrahigh molecular-weight polyethylene fiber that offers high cut-resistance, even when wet. It's 10 times stronger than steel per unit weight.
- Spectra gloves are cut and abrasion resistant, often lightweight, flexible and used for food processing, appliance assembly, food service, automotive assembly and the paper industry.
- Dyneema: A superstrong polyethylene fiber that offers maximum strength combined with minimum weight. It is up to 15 times stronger than quality steel and up to 40% stronger than aramid fibers, both on weight-for-weight basis. Dyneema floats on water and is extremely durable and resistant to moisture, UV light and chemicals.
- Kevlar® Aramid Fiber: Five times stronger than steel per unit weight. Inherently flame resistant it begins to char at 800°F (427°C). The thread made of Kevlar® fiber is used to sew seams on temperature-resistant gloves.
- Kevlar® gloves offer cut- and heat-resistance. Typically a lightweight flexible material that is used for many applications relating to automotive assembly, sheet metal handling and glass handling.
- Fiber-Metal Blends: Many durable, abrasion-resistant gloves are made of a woven fabric blend of Spectra, Kevlar and stainless steel.
- Metal Mesh: Interlocked stainless steel mesh offers superior cut and puncture protection due to its strength.
- Metal mesh gloves are very cut- and abrasion-resistant and are used often in meat/poultry applications.
- SuperFabric: Combinations of the number of layers, thickness, substrates, surface coatings, etc., lead to fabrics which have varying levels of puncture, cut and abrasion resistance, grip and flexibility. Tactile surface offers improved grip of wet and oily surfaces.
- Steel Core: Cut- and abrasion-resistant and are often used for meat/poultry processing, glass handling, metal fabrication, automotive manufacturing as well as being used in the paper industry.
There are many different glove materials in the market that have a variety of performance characteristics and are used for many different applications.
Although the above materials are known to provide excellent cut-resistance, any glove material will provide some measure of cut-resistance. Dupont manufacturing performed a cut-resistance test called a cut protection performance test (CPPT) comparing leather, cotton, standard Kevlar® and Kevlar® Plus materials. They found that the Kevlar Plus outperformed the standard Kevlar, cotton and leather materials. The results showed that standard Kevlar had the next best results followed by cotton and then leather pertaining to these specific materials.
Manufacturers typically use the ASTM F-1790 standard for measuring the cut protection performance of protective apparel. This test method uses force-distance testers to determine how resistant a material is to cuts when exposed to a cutting edge under specific loads. This method provides data to differentiate the cut-resistance of common material such as cotton, leather and high-performance fibers. Results are provided in terms of grams of weight applied to the specific material tested.
Another testing agency which rates fabric and cut-resistance is ANSI/ISEA (American National Standards Institute)/(International Safety Equipment Association). This standard is similar to the European standard:
|Rating||Level 0||Level 1||Level 2||Level 3||Level 4||Level 5||Level 6|
|Abrasion-Resistance* (Cycles)|| |
|Cut-Resistance (Grams)**|| |
|Puncture-Resistance (Newtons)|| |
* Abrasion ratings 0 through 3 are based on measurement with a 500-gram load. Levels 4 through 6 are measured with a 1,000-gram load.
** Weight needed to cut through material with 25mm of blade travel
The European standard EN388 (which does not apply or affect other regions - it is only provided for reference) is slightly different, offering a matrix based rating system:
First Rating: Abrasion resistance ranges from 0–4 and is based on the number of cycles required to abrade through a sample glove using a specially designed machine for measuring the abrasion of textiles.
Second Rating: Cut resistance ranges from 0–5 and is based on the cut resistance of a rotating circular blade with mass applied to it.
Third Rating: Tear resistance ranges from 0–4 and is the force in Newtons needed to tear a previously cut specimen.
Fourth Rating: Puncture resistance ranges from 0–5 and is the force in Newtons needed to puncture the PPE material using a specially designed stylus.
In summary, as shown in the table below, a glove rated 2/3/2/1 would exceed 500 abrasion cycles, 5.0 cut-resistance cycles, 25 Newtons tear resistance, and 20 Newtons puncture resistance.
According to statistics found from Ansell Edmont manufacturing website AnsellPro.com:
- The average indemnity compensation for OSHA recordable hand finger injuries is approximately $3,856.00
- The average medical payment is approximately $2,600.00
- There are approximately 439,000 disabling yearly hand and finger injuries which equates to a cumulative cost into the millions each year
Although there are no OSHA regulations specific to cut-resistant gloves, OSHA 1910.138(a) and 1910.138 (b) do pertain to hand protection:
"Selection: Employers shall base the selection of the appropriate hand protection on an evaluation of the performance characteristics of the hand protection relative to the task(s) to be performed, conditions present, duration of use, and the hazards and potential hazards identified."
|Q.||Do cut-resistant gloves offer good puncture-resistance?|
|A.||Many cut-resistant gloves are manufactured to provide protection from a SLASH from sharp items like knives/blades. However, they may provide very little, if any, puncture-resistance from a pointed item like a needle.|
|Q.||Should cut-resistant gloves be used to protect one from cuts from powered/mechanical equipment like powered saws and drills?|
|A.||Most all manufacturers of cut-resistant gloves will not suggest the use of cut-resistant gloves for protection against powered devices. Gloves are typically tested for use with non-powered blades and sharps only. |
The use of a cut-resistant glove with powered equipment could potentially harm an individual. If the moving blade catches the glove, it could result in a person getting pulled into moving machinery. Moving machine parts have the potential for causing severe workplace injuries, such as crushed fingers or hands, amputations, burns or blindness. Safeguards are essential for protecting workers from these needless and preventable injuries. Any machine part, function or process that may cause injury must be safeguarded, especially when the operation of a machine or accidental contact with it can injure the operator or others in the vicinity. These hazards must be either eliminated or controlled.
Standards and Trends in the Glove Industry, By Donald F. Groce, September 2003
Find even more information you can use to help make informed decisions about the regulatory issues you face in your workplace every day. View all Quick Tips Technical Resources at www.grainger.com/quicktips.
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The content in this newsletter is intended for general information purposes only. This publication is not a substitute for review of the applicable government regulations and standards, and should not be construed as legal advice or opinion. Readers with specific compliance questions should refer to the cited regulation or consult with an attorney.
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