5.5 Heat reversion 5.5.1 Main profile “When tested in accordance with EN 479 for each test specimen the heat reversion (R) of the two largest opposing sight surfaces shall not be > 2,0 %. The difference in heat reversion for each test specimen between these sight surfaces shall not be > 0,4 %. 5.5.2 Auxiliary…
9.1 Test criteria9.1.1 Material shall be classified 5VA or 5VB on the basis of test results obtained on small bar and plaquespecimens when tested as described in (9.2.1 – 9.6.5).Exception: For materials that are submitted for a 5VB rating only (i.e., the manufacturer does not seekthe 5VA rating), plaque specimens do not need to be…
General Methods5.1 Except as otherwise specified in these test methods for rubber O-rings, the following ASTM test methods applicable in general to vulcanized rubber, shall be complied with as required and are hereby made a part of these test methods:5.1.1 Tension Test—Test Methods D 412.5.1.2 Compression Set—Test Methods D 395.5.1.3 Low Temperature—Test Method D 1329.5.1.4…
The best method for testing electrotechnical products with regard to fire hazard is to duplicate exactly the conditions occurring in practice. In most instances this is not possible. Accordingly, for practical reasons, the testing of electrotechnical products with regard to fire hazard is best conducted by simulating as closely as possible the actual effects occurring…
System is installed on extruder input, and measures the Kg/h output of extruder continuously. Based on requested weight per meter of pipe, system knows how much should be the line speed. Along with the unit also an encoder will be installed on puller of the extrusion line to measure the real line speed. Speed control…
Ultrasonic technology for thickness measurement is using ultrasound reflection time between our surface of the pipe and inner surface. If you calibrate the device for sound speed in the target material then machine can calculate the thickness. Sound speed in different materials depends mainly on material type and temperature. Of course when you calibrate device…
