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…
25 Method F5: Water penetration25.1 ObjectThis test applies to continuously water-blocked cables. The purpose is to determine the ability of a cable to block water migration along a specified length. Compliance shall be checked on samples of cable using one of the two following methods (F5A or F5B), as stated in the detail specification. Method…
IEC 60695-2-11 defines the glow-wire flammability test method applied to end-products for fire-hazard assessment. For the purpose of this test method, an end-product includes: The purpose of the glow-wire test is to evaluate whether a part exposed to an abnormal thermal stress: The test is particularly relevant to polymeric and insulating parts used in electrical…
6.5 Tension 6.5.1 Three samples of MPT shall withstand a tension of 156 N (35 Ibf) for one minute applied in accordance with 6.5.5 – 6.5.6 Each sample shall be approximately 457 mm (18 inches) in length Following the test, there shall be no splits, cracks, tears, separation of convolutions, or other openings when it…
First thing we need to do is to analyze pure polymer. In this example, polymers A and B are heated up in DSC, and the heat for melting is recorded. It is a specific enthalpy meaning measurement is presented as per mg of material. We use this information to quantify the mixture contents. Here is…
4 Apparatus4.1 Testing machine capable of applying load in vertical and/or horizontal direction and with a measuringaccuracy of ± 3 %.4.2 The accuracy of positioning of components shall be within ± 2 mm.4.3 Devices to have the pallets secured for test 6.3 and 6.5.4.4 Instrument for measuring deformation with an accuracy of 0,2 mm.4.5 Determination…
6 Apparatus6.1 Depth Gauge—The depth gauge shall consist of three components that conform the requirements of this section; a dial indicator, a setting block and a contact point with extension. 6.1.1 Dial Indicator—capable of measuring to depth of at least 2.5 mm [0.10 in.] with an accuracy of 60.025 mm [0.001 in.].6.1.2 Setting Block—the setting…
The Cleveland Open Cup (COC) Tester is used to determine the flash point and fire point of petroleum products under controlled laboratory conditions according to ASTM D92. The method is particularly intended for petroleum products with flash points above 79°C (175°F) and below 400°C (752°F), subject to the applicability limitations specified by the standard. What…
How can we evaluate whether polyethylene has been adequately crosslinked? One of the most widely used approaches is to determine its Gel Content and, when required, its Swell Ratio. ASTM D2765 describes test methods for determining the insoluble fraction produced by crosslinking in ethylene plastics. The methods are applicable to crosslinked polyethylene materials of different…
