Specific test methods for insulating and sheathing polyethylene and polypropylene compounds of electric cables. Elongation at break after pre-conditioning. Wrapping test after pre-conditioning. Wrapping test after thermal ageing in air. Measurement of mass increase. Long-term stability test. Test method for copper - catalyzed oxidative degradation
Sulfide copper-nickel ore. Mass-spectrometry method for determination of platinum, palladium, rhodium, ruthenium, iridium and cold content with preliminary collecting for nickel matte
