9. Procedure A - Manual Operation.9.1 Select conditions of temperature and load from 8.2 or in.Accordance with material specifications. Where multiple test.Conditions exist test conditions, shall be agreed upon by the.Cooperating laboratories. If test conditions are, not knownSelect conditions that result in flow rates between 0.15 to 50.G / 10 min.9.2 Inspect the extrusion plastometer for cleanliness (see.Note 10). All surfaces of the cylinder bore die and, piston shall.Be free of any residue from previous tests.NOTE 10 - The degree of cleanliness can significantly influence the.Flow rate results therefore a, thorough method of cleaning should be.Established. It has been found that swabbing the barrel with a clean cotton.Patch several times is satisfactory for most materials and that, the dieBarrel and piston, are more easily cleaned while hot. For materials that are.Difficult to clean from the, metal surfaces use of a brass brush has been.Found to be satisfactory.9.3 Check the die bore diameter at frequent intervals with.Appropriately sized go / no-go gauges (checked with die at.23 6 5 ° C) to verify that the die is within the tolerances given.In 5.3.1. Visually examine the die bore to verify that it is not.Scratched or damaged. Also visually inspect the land of the.Piston foot to verify that it is not scratched or damaged and use.A calibrated micrometer to verify that the dimensions are within.The tolerances given in 5.4.1 (see Note 11).
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