4 Description of the test apparatus4.1 Glow-wireThe glow-wire is formed from nickel/chromium (> 77 % Ni/20 ± 1 % Cr) wire, having an overall diameter of 4,00 mm ± 0,07 mm (before bending). The dimensions of the glow wire loop are as detailed in Figure 1.A new glow-wire shall be annealed for a total of…
4 PrincipleThe impact strength of suitably sized test specimens is determined by striking them with a lubricated weighted striker dropped vertically from a known height. The test specimen is impacted at its centre by a striker, perpendicular to the surface of the specimen.Two methods of adjusting the energy at impact are permitted: altering the mass…
4 Apparatus 4.1 Room, which can be controlled at a temperature of 23 ◦C ± 2 ◦C 4.2 Tensile-testing machine, capable of sustaining between its clamping jaws a constant speed of 5 mm/min ± 1 mm/min , and equipped with means for recording the consequent applied force, and a device to detect test piece failure. 4.3 Clamping device, equipped with bars fitting into traction holes machined…
8.1.2 When the specified time period has been attained, remove the test specimens and determine the frost point in accordance with Test Method E 546. Observe for chemical dew point.8.2 Accelerated Weather Cycle Test:8.2.1 Place the test specimens that were tested in accordance with 8.1 in the accelerated weather cycle test apparatus. Mount the specimens…
A.13 Flexibility of the coating A.13.1 EquipmentThe equipment shall consist of the following:A.13.1.1 Hydraulic press.A.13.1.2 Bending mandrels, with fixed radii.A.13.1.3 Freezer.A.13.1.4 Strain gauges (if applicable).A.13.2 Test specimensLaboratory-coated test specimens shall be approximately 6,4 mm × 25 mm with a minimum length of 200 mm.Specimens from test rings shall be the pipe wall thickness with a…
8.1 Test 1 — Bending tests8.1.1 PurposeThe purpose of these tests is to determine the bending strength (test 1a) and bending stiffness (test 1b) of the pallet in racking situations. 8.1.2 Procedure8.1.2.1 In order to establish the weakest pallet support dimension, test one pallet across the length of thepallet and then a second pallet across…
6 Apparatus6.1 Tensile/Compression Testing Machine, of the constant rate-of extension (CRE) type, with autographic recorder conforming to the requirements of Specification D 76. See Fig. 1. 6.2 Ring Clamp Attachment, consisting of concentric plates with an open internal diameter of 45 ± 0.025 mm (1.772 ± 0.001 in.), capable of clamping the test specimen without…
7 ApparatusMetrological confirmation of the test apparatus shall be carried out in accordance with ISO 10012-1. 7.1 Circular specimen holder, with an orifice allowing the test to be carried out on an area of 5 cm2, 20 cm2, 50 cm2 or 100 cm2. The tolerance on the test area shall not exceed ± 0.5 %….
5 Apparatus5.1 Testing machine.The testing machine shall be of class 1 or class 0 in accordance with ISO 7500-1 and shall be capable of the following:⎯ a constant rate of displacement of (50 ± 5) mm/min;⎯ recording force and displacement;⎯ providing an autographic read-out of force and displacement.5.2 Plunger.A stainless steel plunger with a diameter…
10 Method E6: Repeated bending10.1 ObjectThe purpose of this test is to determine the ability of an optical fibre cable to withstand repeated bending.Repeated bending of connectorized optical fibre cable involves testing as a unit, testing both the capabilities of the cable and the connector. This testing is defined by IEC 61300-2-44. Refer to that…
