Katermaster explains the measure of a quality disposable glove
How do you determine whether the quality of one glove is superior to another?
Katermaster explains a few measures commonly used below.
The test for pinholes in the glove is used to help determine the glove’s integrity and performance as an effective barrier. The AQL is the “Acceptable Quality Level”. It is defined as the “quality level that is the worst tolerable” by ISO 2859-1:1999, essentially the tolerance level for defective units in a batch. The lower the AQL number, the better the quality. For example, AQL 4.0 for pinholes means that the maximum level of defects that will be accepted in the batch is 4.0%.
The standard vinyl glove has an AQL for pinholes of 4.0, whilst NitraOne has an AQL of 2.5.
Elongation is the glove’s ability to stretch and then return to its previous form/shape. A higher ultimate elongation percentage will generally result in the glove being more comfortable, form-fitting, and puncture resistant. If a glove has a minimum of 300% elongation, it means that it is able to stretch 3 times its original length.
The standard vinyl glove has a minimum of 300% ultimate elongation / elongation at break, whilst NitraOne has a minimum of 500%.
Tensile strength is measured by the amount of force required to break the glove - measured in megapascals (MPa). Getting the balance right between tensile strength and elongation is crucial. If the tensile strength is too high, it will make the glove stiff and uncomfortable to wear. If it's too low, the risk of glove tears increases.
The standard vinyl glove has a minimum of 11 MPa, whilst NitraOne has a minimum of 17 MPa.
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