BS EN 12310-2:2018 pdf free.Flexible sheets for waterproofing -Determination of resistance to tearing Plastic and rubber sheets for roof waterproofing.
BS EN 12310-2 This document specifies a method for the determination of tear properties of plastic and rubber sheetsfor roof waterproofing using a trapezoidal test specimen with a nick or cut.
The following documents are referred to in the text in such a way that some or all of their contentconstitutes requirements of this document. For dated references,only the edition cited applies.Forundated references, the latest edition of the referenced document(including any amendmentsJ applies.EN ISO 7500-1:2018,Metallic materials — Calibration and verification of static uniaxial testingmachines — Part 1: ‘Tension/compression testing machines —Calibration and verification of the forcemeasuring system (1sO 7500-1:20i8)
EN 13416:2001，Flexible sheets for waterproofing —Bitumen,plastic and rubber sheets for roofwaterproofing – Rules for sampling.For the purposes of this document, the following terms and definitions apply.
The principle of the test is measurement of the force required to completely tear the test specimen, incontinuation of the cut or nick already produced in the test specimen.
The tearing force is applied by means of a tensile testing machine at a constant speed until the testspecimen breaks. The maximum peak force achieved is reported.
Tensile testing machine equipped with a continuous recording of force and corresponding extensionand capable of maintaining a uniform speed of grip separation as specified below.
The tensile testing machine shall have a sufficient loading capacity of at least 2 000 N and a gripseparation speed of (100 ± 10) mm per min. The width of grips shall not be less than 50 mm.
The tensile testing machine shall be equipped with grips of a type which maintain or increase theclamping pressure as a function of the increase of the force applied to the test specimen. The testspecimen shall be held so that it does not slip in the grips more than 1 mm for products up to andincluding 3 mm thick, and 2 mm for thicker products. A mark or tape on the test specimen where itenters the grips will help reveal any slip.
The force measuring system shall meet at least Class 2 of EN ISO 7500-1(i.e.± 2 %).
The template used for cutting the test specimens shall have dimensions as shown in Figure 1.BS EN 12310-2 pdf download.