| Shall correspond to control sample, approved in accordance with the established procedure. Pores, which can be seen by eyes, are not allowed. Plastic shall no burn at stop of worm extruder for a period of 20 minutes. For molding of non-detachable plugs, connecting cords of electric machines and devices and for sheath of electric domestic cords. Characteristic peculiarity of plastic "Neva" is absence of sticking, changing of color of plastic during contact with metal surfaces, heated up to 150°C during 8-10 minutes. |
