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Martens degree of deformation |
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UNE 53026 Standard: Method for measuring, under specified conditions, the temperature at which a test specimen under a determined flexion force is displaced a pre-established distance. |
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Water absorption |
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ISO 62 Standard: Method for determining the water absorbed when a moulded test sample of a moulding compound is submerged in water at room temperature and at 100°C. |
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Transfer flow of a moulding compound |
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ISO 7808 Standard: Method for determining the fluidity of a moulding compound by pressing it in a standard mould under controlled conditions of pressure and temperature. |
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Granulometric analysis of powdered additives and loads |
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Method for determining the percentage of material retained in a sieve. The test material is placed on a sieve and subjected to a vacuum of 2.5 kPa.
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Softening point of resins |
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ASTM D 3461 Standard: Method for determining the softening point of resins at a range of 50 to 180 °C. The resin is placed in a cylindrical cone with a 7.77 mm diameter hole in the bottom. A measurement is taken of the temperature at which the resin flows a distance of 19 mm and breaks a light beam. The resin is heated at a constant gradient of 2°C / min. |
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Percentage water content using Karl-Fisher methods |
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ISO 760 Standard: The method is based on the reaction of the water present in moulding compounds placed in a methanol solution of iodine and sulphur dioxide. |
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Apparent density of moulding compounds |
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UNE-EN-ISO 60 and UNE 53015 (II) Standards: Method for determining the weight of the moulding compound that fills a 100 ml capacity cylinder. |
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Charpy impact properties |
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UNE-EN-ISO 179 Standard: Method for determining the impact strength of a test specimen moulded from a moulding compound using a pendulum with a specific weight and period. |
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Post-moulding shrinkage of a moulding compound |
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ISO 2577 Standard: Method for determining the shrinkage of a standard test specimen after moulding under controlled pressure and temperature conditions. The determination is made using a micrometre after allowing the moulded test sample to stand for 16 hours at 23 ± 2°C and 45-55% relative humidity. |
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Density of a moulded product |
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ASTM D 792 Standard: Method for determining the density of a test specimen by calculating its mass in air and when immersed in water. |
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