Tensile and compression tests using a universal tensile testing machine; we measure:
Tensile strength of the polyester yarns
Tensile strength of the sewing yarns
Tensile strength and elasticity of the gauntlets, woven and non-woven
Rigidity of the gauntlets
Cycle test
Bursting strength and fatigue test
Chemical tests
Determination of the resin content by extraction in the Soxhlet apparatus before thermo formation Unfortunately it is not possible to extract the total quantity of acrylic resin of the finished gauntlet. Only the total weight of the gauntlets gives some information about the resin content.
Oxidation test: we measure the weight loss of the gauntlet after oxidation in a dichromate-sulfuric acid solution during 7 days at high temperature (70 °C).
Physical tests
Control of the length of the gauntlets
Control of the inner diameter or with cylindrical calipers with a conical caliper
Permeability (free surface) ist the total surface of the pores related to the total surface of the gauntlets
Electric resistance
Porosity
Light permeability: only for woven gauntlets
Air permeability: for both woven and non-woven gauntlets
