REGULATION 12 SCHEDULE 3 4.4.5 Impact Load Testing 4.4.5.1 Principle The Device is impacted with a metal stud and assessed for damage. 4.4.5.2 Apparatus The following apparatus is required: • A method of reducing the temperature of the sample to 0°C ±0.1°C. • A humidity gauge capable of recording to ±1% humidity. • A thermometer or thermocouple capable of recording temperatures at 0.1°C increments • A camera capable of producing a digital record of all features pre and post testing. • Double-sided adhesive tape 10x30 ±1 mm with a thickness of 0.15 ±0.1 mm and an adhesive strength of at least 15 ±5N/cm to steel shall be used to secure the Device to the steel plate. • Distance measuring Device capable of measuring to 0.1mm increments • A stud, as defined in Section 2 above, which is free from visual defects. • A test machine which includes: o A test area that allows the Device to be laid horizontally across a steel plate of a minimum thickness of 10mm. There must be a clear surround on the plate of 15mm in all directions when the sample is mounted. o A steel frame capable of dropping a mass of 6.2kg ±0.050kg vertically on guide rails from various heights between 0mm and 150mm from the top of the fixed sample. Care must be taken to ensure the friction between the mass and the guide rails is kept to a minimum (free slide). The guide rails must be frictionless or as close to frictionless as possible. This should be verified by measuring the free drop acceleration which must be within 5% of the theoretical acceleration due to gravity. o A means of securely connecting the stud to the mass in a manner which ensures that it is the only item striking the Device. Last update: 3 January, 2017 249
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