Examples of microduct optical fibre cables and microducts Figures A.1, A.2 and A.3 provide examples of different microduct optical fibre cables and microducts. 5 Microduct optical fibre cable5.1 Tests applicableThe tests that are applicable for mechanical and environmental performance are given inTable 2. 5.2 Tensile performancea) Family requirementsUnder short-term tensile load the fibre strain shall…

5 General characteristics 5.2 OpacityCrosslinked polyethylene pipes that are declared to be opaque shall not transmit more than 0,2 % of visible light, when tested in accordance with EN 578. 7 Mechanical characteristics When tested in accordance with the test method as specified in Table 7 using the indicated parameters, the pipe shall withstand the…

G.1 UV ageingG.1.1 GeneralThe test shall consist of subjecting PE/PP material test samples to the continuous irradiation of a xenon lamp under given temperature and humidity conditions.Evaluation shall be performed by assessing the change in the material through the variation in its melt flow rate.G.1.2 EquipmentG.1.2.1 Irradiation chamber, equipped with a xenon lamp (see ISO…

1 SCOPE AND FIELD OF APPLICATION This International Standard specifies a method of determining the apparent density, i.e. the mass per unit of volume, of base material (powder or granular material) that can be poured from a funnel of specified design. NOTE: For a method of degerming the apparent density of loose moulding maternal that…

5 Method E3: Crush5.1 ObjectThe purpose of this test is to determine the ability of an optical fibre cable to withstand crushing for long term and for short-term loads.NOTE Method E3A corresponds to the default method, Method E3 Crush, defined in IEC 60794-1-2:2013.5.2 SampleThe sample shall be of a length sufficient to carry out the…

4 PrincipleIt is possible to determine the ash of an organic material by three main methods:a) Direct calcination, i.e. by burning the organic matter and heating the residue at high temperature untilconstant mass is reached (method A).b) Calcination after sulfation, which may be carried out by two different procedures:⎯ With sulfuric acid treatment after burning,…

5 Pendulum method5.1 Apparatus5.1.1 GeneralThe rebound resilience shall be measured by means of an apparatus consisting of a pendulum-like onedegree-of-freedom mechanical oscillatory device and a heavy and secure test piece holder.The two items shall be suitably fixed together for rebound resilience measurements, and either item can be removed for purposes of adjustment or checking of…

10.2 Compression testReplacement:10.2.1 Conduits are subjected to a compression test.NOTE: Compression test on fittings is under considerationThe test for conduits containing non-metallic materials is not started until 10 days after manufacture.10.2.2 Samples are (200 ± 5) mm long. 10.2.3 Before the test, the outside and inside diameters of the samples are measured as specified in…