Optics and photonics. Lenses for optical electronic systems. Methods for measuring the diameter of the entrance pupil and determining the relative aperture
Specific test methods for insulating and sheathing polyethylene and polypropylene compounds of electric cables. Resistance to environmental stress cracking. Wrapping test after thermal ageing in air. Measurement of the melt flow index. Carbon black and/or mineral content measurement in PE
€10
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