8. Requirements 8.1 Longitudinal Reversion—When tested in accordance with ISO 15874-2, at the conditions given in Table 8, the mean relative change in pipe length shall not exceed 2 %. 8.2 Melt Flow Rate (MFR) of Pipe and Fittings—When tested in accordance with D 1238, the MFR of specimens taken from the finished pipe or…
C.1 GeneralThe test shall consist of measuring the force required for peeling the coating from the metal substrate of the pipe at a constant rate of pull.C.2 EquipmentC.2.1 Tensile testing machine, capable of recording the peel force with a 5 % reading accuracy, thatoperates at a rate of pull of 10 mm/min, as shown in…
6.4 Pipe Stiffness and Flattening:6.4.1 Well Casing Pipe—The well casing pipe shall have a pipe stiffness at 5 % deflection equal to that shown in Table 6 and Table 7 and shall deflect 60 % of the original diameter (flattening) without cracking, rupture, or other visible evidence of failure when tested in accordance with Test…
8 Method E4: Impact8.1 ObjectThe purpose of this test is to determine the ability of an optical fibre cable to withstand impact.8.2 Sample8.2.1 Sample lengthThe sample length shall be sufficient to carry out the specified test. When only physical damage is to be evaluated, the length may range from 1 m (for example for small…
5 Apparatus5.1 GeneralSee ISO 527-1:2012, Clause 5, specifically 5.1.1 to 5.1.4.5.2 ExtensometerFor this part of ISO 527, a gauge length of 75 mm is preferred when a multipurpose test specimen is used.A gauge length of 50 mm is also acceptable for quality-control purposes or where specified.If strains are recorded only on one side of the…
23.1 ObjectThis measuring method applies to optical fibre cables which are tested by temperature cycling in order to determine the stability behaviour of the attenuation of cables submitted to temperature changes.Changes in the attenuation of optical fibre cables which may occur with changing temperatures are generally the result of buckling or tensioning of the fibres…
4 PrincipleA test specimen is weighed and subsequently calcinated at a defined temperature. The specimen is thenreweighed and the non-combustible matter content (glass + filler) obtained by determining the difference in mass of a test specimen before and after calcination in one of the following ways:a) In the case of materials containing no fillers the…
14 Method E11: Bend14.1 ObjectThe purpose of this test is to determine the ability of an optical fibre cable or cable element to withstand bending around a test mandrel.14.2 SampleThe sample shall be terminated at each end in a manner such that the fibres, sheath(s) and any strain members are clamped together in a representative…
6 Apparatus6.1 Fig. 1 shows an example of the test apparatus that can be used in the performance of this test method. The apparatus requires a pressure vessel rated to a minimum of 690 kPa (100 psi). The vessel diameter should be 600 mm3. Other size vessels may be used but it is up to…
3 Apparatus3.1 Ambient temperaturesFor tests at ambient temperatures (see 5.2), a test room or water bath, capable of being maintained ata temperature to within ± 2°C.3.2 Elevated temperaturesFor tests at elevated temperatures, an air chamber or water bath, capable of being maintained at thespecified test temperature to within +3….-1C 3.3 Pressure control deviceA pressure control…
