3 Method A — De Mattia method 3.1 Principle A rectangular strip of coated fabric is folded twice so that its long edges meet forming a strip measuring 12.5 mm x 12.5 mm. This folded strip is mounted between a pair of flat grips, one of which reciprocates, causing the folded test piece to be…
Figure A.1 and Figure A.2 give useful examples of microduct fibre units, microducts, and protected microducts. 5 Microduct fibre unit5.1 Tests applicableTests that are applicable for mechanical and environmental performance are given in Table 2. The above tests may need to be modified for use with these cables. In particular, special care needs to be…
AHP’s reliable and easy to use materials testing systems are employed by the adhesive industry to test the peel strength, bonding, and shear properties of adhesives. Types of adhesive materials that are commonly tested include pressure sensitive adhesive (PSA) tapes, epoxies, sealants, and thermosetting structural adhesives. Our pull testing machines have many features specifically designed…
5 Apparatus 5.1 Measuring unit, with temperature and water supply control, consisting of a metal plate approximately 3 mm thick with a minimum area of 0,04 m2 (e.g. a square with each side 200 mm in length) fixed to a conductive metal block containing an electrical heating element [see figure 1, items (I) and (6)]….
4.2 ApparatusThe apparatus consists of the following parts:a) An oven capable of maintaining the temperature and tolerance specified.b) Grips shall be provided, such that each test piece can be suspended from an upper grip inthe oven and weights attached to a lower grip attached to the test piece.NOTE When testing tubular test pieces, the fixing…
4 Apparatus, materials and reagents4.1 Suitable mechanical device, consisting of a water bath containing a rotatable shaft which supports,radially, stainless steel containers with a diameter of (75 ± 5) mm and a height of (125 ± 10) mm, of capacity (550 ± 50) ml, the bottom of the containers being (45 ± 10) mm from…
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…
