BS ISO 3537:2015 pdf free
BS ISO 3537:2015 pdf free.Road vehicles一Safety glazing materials一Mechanical tests
The abrasion test shall be carried out on both inside and outside surfaces of the safety glazing material except in the case where both surfaces are comprised of glass. In this case it shall be carried out only on the outside surface.
Cleaning. Before testing, remove any protective masking material from the test pieces. If required,clean the test pieces using a practice recommended by the manufacturer, or if none is recommended,clean the test pieces in the following manner:
a) Using an Isopropyl alcohol (IPA) soaked lint free cloth, gently wipe both surfaces of the test piece in a linear motion to remove any remaining particulate. For those materials where IPA influences the surface characteristics or does not yield a satisfactory result, use a cleaning solution of water with a commercial (e.g. dish-washing) detergent added or a cleaning solution that is compatible with the test piece. First, wipe the test piece vertically; then wipe the test piece horizontally; and as a final cleaning step, wipe the edges.
b) Rinse with distilled, deionized, or demineralised water.
c) Dry by pressing lightly between two linen cloths, or blow dry with clean air or nitrogen.Inspect to confirm that there are no water spots or other residue before haze measurement.Any treatment with ultrasonic equipment shall be avoided.
After cleaning, the test pieces shall be handled only by their edges and shall be stored to prevent damage to, or contamination of, their surfaces. It is recommended that latex gloves be worn at all times throughout this test.
Abrasion. Mount the test piece on the abraser turntable platform with the side to be abraded facing up. The test piece shall be mounted at a 45° angle from the front of the machine as shown in Figure 4. Secure using the clamp plate and nut. Select the load to be used and affix it to the abraser. Lower the vacuum pick-up nozzle and adjust the height to 1 mm above the test piece surface with a gage having a thickness equal to 1 mm or a gage pin having a diameter equal to 1 mm. After setting the height of the vacuum nozzle, ensure the rear vacuum nozzle does not contact the test piece surface. Set the counter to zero and programme the appropriate number of cycles.BS ISO 3537 pdf download.
