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.4.2 Method A – Measurement of carbon black and/or mineral filler content in polyethylene by direct combustion4.2.1 Sample and test piece preparationA sample of the outer covering or sheath…
4 Classification4.1 This specification recognizes that polyethylene plastics are identified primarily on the basis of two characteristics, namely, density and flow rate (previously identified as melt index). The former is the criterion for assignment as to type, the latter for designation as to category. Other attributes important to the user for certain applications are covered…
AHP manufacture testing equipment for stretch-wrap films. Stretch wrap films are highly stretchable plastic films that are wrapped around certain items, as often used in the packaging industry. The main function of the film is to improve it’s loading stability for transportation, storage and contamination protection. Stretch-wrap films are commonly made of PE (LLDPE , VLDPE, PVC ….). Critical…
Apparatus5.1 Free-Fall Drop Test Equipment, conforming to the following requirements:5.1.1 It shall permit the container to be placed, prior to release, in a position that will ensure correct orientation, within 2 degrees upon impact, for flat-face drops or flat drops on ends or sidewalls of cylindrical containers, and within 5° upon impact for other drops,…
5.2 Vertical flame test 5.2.1 A specimen of the finished conduit shall be subjected to five 15-s applications of flame. the period between applications is 15 s. The specimen shall not be acceptable if it: a) Continues to flame longer than 10 s, following the fifth application of the flame: or b) Shows more than…
2 PrincipleA joint assembly as test piece consisting of a PVC-U pipe mounted into a PVC-U socket is subjected, within a specified temperature range, to a specified internal pressure regime for a specified test period whilst the pipe is also subject to an angular deflection in the socket. While under pressure the test piece is…
According to our experience in electrofusion fittings, the wire laying method is most suitable for a size range of more than 50mm. lets say we want to make electrofusion fittings, for the range of more than 50mm using HDPE pipes with modified wall thickness. This method is feasible for the mentioned range but it is…
4 PrincipleThe test consists in measuring the force required to tear a specified test piece, in continuation of the cutor nick already produced in the test piece or, in the case of method B, procedure (a), completely acrossthe width of the test piece.The tearing force is applied by means of a tensile testing machine, operated…
1 Scope This standard specifies a method for testing the resistance of joints to pressure cycling. It is applicable to piping systems based on rigid or flexible thermoplastics pipes intended to be used in hot and cold water applications. 3 Apparatus 3.1 Pressurizing device, capable of applying and regulating the water pressure in the test…
