Category: Standards

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…

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…

D.1 GeneralThermal analysis shall be used to characterize the uncured epoxy (powder, one-component liquid ortwo-component liquid) and the cured coating film.Differential scanning calorimetry (DSC) shall be used. Reference can be made to ISO 11357-2 for adescription of the general procedure and definitions. General handling and calibration shall be performed as inISO 11357-2 unless stated otherwise…

4 PrincipleA cylindrical rubber test piece is made to slide over an abrasive sheet of specified abrasive grade at aspecified contact pressure over a given distance. The test piece may be non-rotating or rotating during the test.Abrasion takes place over one of the end surfaces of the cylindrical test piece (see Figure 1). The abrasivesheet…

4.2 Pipe materialWhen tested in accordance with the test method as specified in Table 1, using the indicated parameters, the pipe material shall have characteristics conforming to the requirements given in Table 1.The pipe material shall be tested in the form of a pipe. 4.3 Fitting material When tested in accordance with the test method…