1 Scope This part of ISO 4589 specifies methods for determining the minimum concentration of oxygen, in admixture with nitrogen, that will support combustion of small vertical test specimens under specified test conditions. The results are defined as oxygen index values. Methods are provided for testing materials that are self-supporting in the form of vertical…
4 Test method4.1 GeneralThis part of IEC 60811 shall be used in conjunction with IEC 60811-100.Unless otherwise specified, tests shall be carried out at room temperature.Two test procedures can be applied to materials, depending on cable system conditions andenvironments; a summary of test conditions is given in Table 1:– for less severe conditions: Method A;–…
4 PrincipleA test specimen is clamped over an expansive diaphragm by means of a circular clamping ring. Increasing fluid pressure is applied to the underside of the diaphragm, causing distension of the diaphragm and the fabric. The volume of fluid is increased at a constant rate per unit time until the test specimen bursts. The…
6.4 Vertical flame 6.4.1 General 6.4.1.1 This test establishes the method for determining the resistance of MPT, fitting, or clamp to the vertical propagation of flame and dropping of flaming particles Specimens shall be separately subjected to two 15-second applications of flame, with 15 seconds between each Raine application 6.4.1.2 Specimens shall be tested in…
3 Fire behaviour3.1 Requirements and testingThe material used for pipes and fittings shall fulfil the requirements for class B1 building materials, as specified in DIN 4102-1. Fire behaviour shall be tested as in DIN 4102-1, with the exception of pipes and fittings with wall thicknesses as in DIN 4102-4. 4 Conformity assessment (quality control)4.1 General…
Annex AInspection of thickness A.2 EquipmentA.2.1 Magnetic, electromagnetic or ultrasonic measuring instrument, with ± 10 % reading accuracy,calibrated for the range of coating thickness being measured. Annex BHoliday detection test B.2 EquipmentB.2.1 Holiday detector, adjustable, high-voltage, with ± 10 % reading accuracy, equipped with a soundand/or light signal.B.2.2 Scanning electrode, in the form of a…
A wire cable constant temperature water bath testing machine is a piece of equipment used to test the performance and quality of wire and cable products under a constant temperature water bath environment. The testing machine typically consists of a water tank, a temperature control system, a wire or cable holder, and a monitoring system….
1 Scope1.1 This specification covers high density polyethylene (HDPE) geomembranes with a formulated sheet density of 0.940 g/ml, or higher, in the thickness range of 0.75 mm (30 mils) to 3.0 mm (120 mils). Both smooth and textured geomembrane surfaces are included.1.2 This specification sets forth a set of minimum, physical, mechanical and chemical properties…
6 Performance requirements 6.1 Operating torque The measured operating torque shall not exceed the values given in Table 7. The torque required for the preliminary cycle shall not be greater than 1,5 times for valves up to DN 15 and 2,5 times for DN 20 up to DN 100 of the values given in Table…
6 Method E2: Abrasion6.1 Method E2A: Abrasion resistance of optical fibre cable sheaths6.1.1 ObjectThe abrasion resistance of optical fibre cables has two aspects:a) the ability of the sheath to resist abrasion;b) the ability of cable markings to resist abrasion.The purpose of this test is to determine the ability of an optical fibre cable sheath to…
