The following equipment is used to assess the properties of gloves specified by the EN388 standard, which is symbolised by the pictogram above.
A Martindale wear and abrasion tester is used to measure the abrasion resistance. The test involves rubbing samples, cut from the palms of gloves, against a standard glass paper until a hole is worn through one of the samples. The number of abrasion cycles is used to assess the performance.
A Sodemat cut tester is used to measure the resistance to cutting. Samples are cut from gloves and placed in a frame which enables a circular, counter-rotating blade to slice through the glove material. The number of cycles required by the blade to cut through the glove are recorded. These are converted into a cutting index by comparison with the number of cycles required to cut through a standard reference material. The standard now allows for an alternative test method to be used for highly cut resistant products and this test is described in EN ISO 13997. It measures the force required to make a cut in the test sample 20mm long and is often referred to as the ISO Cut Test. Performance levels are established according to cutting index.
|Tear Force (N)||10||25||50||75||n/a|
|Puncture Force (N)||20||60||100||150||n/a|
|ISO Cut Load (N)||13||22|
Puncture and tear resistance are measured with a tensometer. Puncture resistance is measured as the force required to break through samples from gloves with a standard puncture needle (it should be noted that the design of this needle is comparable to that of a large nail, and the puncture strength from this test cannot be used to assess resistance to puncture by hypodermic needles). Tear resistance is measured as the force required to tear apart samples from the glove which are in the form of a pair of trousers (this test is also known as a trouser tear test). The legs of the trouser samples are pulled apart and the maximum force used to assess tearing resistance of the material.
Please click here to download further information on ‘Cut Resistance Testing' (PDF).