State system for ensuring the uniformity of measurements. Dispersion content gas matrices. Determination of particle size by diffusion spectral analysis
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
