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…
4 Principle4.1 ApparatusBoth the guarded hot plate apparatus and the heat flow meter apparatus are intended to establish within homogeneous specimens with flat parallel faces, in the form of slabs, a unidirectional constant and uniform density of heat flow rate. The part of the apparatus where this takes place with acceptable accuracy is around its…
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…
4 Details of test enclosureThe equipment shall comprise a cubic enclosure with inside dimensions of 3 000 mm ± 30 mm and constructed of a suitable material fixed on to a steel angle frame. One side shall have a door, with a glass inspection window. Transparent sealed windows (minimum size 100 mm × 100 mm)…
14 Method E10: Kink14.1 ObjectThe purpose of this test is to determine the minimum loop diameter at the onset of the kinking of an optical fibre cable.NOTE Testing has indicated that the results of this test for cable have limited reproducibility. It is advised that it should be used with caution and that any minimum…
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…
