L.1 Lap shear strength of tape coatingsL.1.1 GeneralThe test consists of measuring the lap shear strength (maximum force per unit area) obtained in shearing a single overlap joint between a plate with metallic surface or plant coating and the FJC by applying a tensile force that is parallel to the bond area and to the…
6. Requirements 6.1 Dimensions and Tolerances: 6.1.1 Dimensions and tolerances shall be as shown in Table 1 and Table 2 when measured in accordance with Test Method D2122. The tolerances for out-of-roundness shall apply only to pipe prior to shipment. 6.2 Sustained Pressure—The pipe shall not fail, balloon, burst, or weep as defined in Test…
4 PrincipleThe test mixture, consisting of a color concentrate and a basic test polymer, is passed through an extruder fitted with melt pump and screen pack with breaker plate. In front of the screen pack is a melt pressure transducer. The pressure difference between the start pressure and the maximum pressure is used to calculate…
4 Principle A cyclic tensile test with a constant load range is imposed on a cylindrical specimen under suitable test conditions within the stress range where SCG is achieved. A circumferential notch is machined in the center of the test specimen to enable crack initiation and SCG to the final failure of the specimen. The…
3 Method E1: Tensile performance3.1 ObjectThis test method applies to optical fibre cables which are tested at a particular tensile strength in order to examine the behaviour of the attenuation and/or the fibre elongation strain as a function of the load on a cable which may occur during installation and operation. This method is intended…
8.4.2 Flexing test8.4.2.1 Apparatus8.4.2.1.1 Testing device, as illustrated in Figure 45. The test piece shall be guided in such a way that on one side it can be bent at an angle of 90° about a mandrel with a radius of 15 mm. 8.4.2.1.2 Cutting tool, as defined in Figure C.2 of ISO 5423:1992.8.4.2.1.3 Measuring…
Methods for characterization of slow crack growth Pipes made of polyethylene such as PE80, PE100 or the improved PE100RC display differing levels of sensitivity to slow crack growth. The terms “Environmental Stress Cracking” (ESC) and “Slow Crack Growth” (SCG) are used to describe this behavior. A failure of this type takes place well below the…
G.1 GeneralThe test consists of verifying the strength of the FJC by the impact of a punch of defined shape falling directly onto the coating from a fixed height and at a fixed temperature. The test shall be carried out on pipes or cut samples. This test shall not be carried out on pipes with…
7 Test equipment7.1 GeneralThe equipment used for all measurements shall be traceable to national or International Standards. They shall be calibrated within suitable intervals.7.2 Installation and verificationThe testing machine shall be installed and verified in accordance with ISO 148-2.7.3 StrikerThe striker geometry shall be specified as being either the 2 mm striker or the 8…
Paraffinic waxes are used for many industrial and consumer applications. We manufacture test and analysis equipment for paraffin wax to determine a wide range of chemical and physical properties. Paraffin was analysis can include purity, contamination, trace components, melting point, oil content and more. Here lets see some of these tests in brief. A- Drop…
