Cut & Puncture Resistance Standards

Application Hazards

Line Repair Frayed cable

Wire Cutting Utility knives

Pallets, Wings, Iron Slivers (wood, metal, nails, burrs)

Application Hazards

3

Cut Resistance Standard

•ASTM F1790-97 Test for Cut Resistance

- Weight (grams) needed to cut through material with 25mm of straight-edged blade travel @ constant speed

•ANSI/ISEA Testing Body- Creates testing index for ASTM F1790-97 cut resistance- Six levels are noted in ISEA/ANSI rating index (0-5)

•EN 388 EN # # # #•European Standard Test•Different method than ASTM•Yields lower results•The 4 #s stand for: Abrasion, Cut, Tear, Puncture

4

Differences In The Standards

LevelISEA-ANSI

Cut Resistance (g)

EN 388 Cut Resistance

(g)

0 < 200 <120

1 ≥ 200 <249

2 ≥ 500 <499

3 ≥ 1000 <999

4 ≥ 1500 <1999

5 ≥ 3500 >2000

US vs European Standards

NOTE: Most EN388 Level 5 gloves max out at a ISEA level 3 cut rating.

5

ISEA Cut Resistance Ratings

Level 0< 200

Level 1≥ 200

Level 4≥ 1500

Level 5≥ 3500

Level 2≥ 500

Level 3≥ 1000

Synthetic leather

Areas of possible concern for cut resistance: • cuts from utility knives • wire cables • burrs on wings

Areas of possible concern for puncture resistance: • wire pokes • utility knives• nails in crates or pallets • splinters from crates or pallets• metal backing from rubber hoses

Where you need cut and puncture protection:

7

Puncture Resistance Ratings

Low PunctureResistance

MediumPuncture

Resistance

High PunctureResistance

Synthetic leather

Example: EXPOSED NAILS FROM CRATE

SuperFabric lining stopped the nail when leather did not

Halliburton

Learning from field trial

Grip Field Test: rough comparison

• What we found– 4020 was optimal for all degrees of saturation with a

variety of lubricants, increases performance– Synthetic Leather gloves lose grip immediately after

contact with lubricant– As saturation occurs, performance drops off dramatically

GGT5 Grip Advantage: Lubricant Channeling

- the gaps between the plates and the rough surface both allow for the oil to be displaced from the surface

-the guard plates prevent the formation of a continuous oil film (slippery surface) and allows direct contact between the guard plates and the metal surface

- the rough surface of the guard plates and the gaps allow for the oil to be displaced from the top of the surface which allows it to grip the metal

- silicon or rubber dots on leather or synthetic surface don’t displace any oil, thin film will remain on surface limiting grip

GGT5 Grip Advantage: Lubricant Channeling