Common test methods for insulating and sheathing materials of electric and optical cables. Part 4-1. Methods specific to polyethylene and polypropylene compounds. Resistance to environmental stress cracking. Measurement of the melt flow index. Carbon black and/or mineral filler content measurement in polyethylene by direct combustion. Measurement of carbon black content by thermogravimetric analysis (TGA). Assessment of carbon black dispersion in polyethylene using a microscope
Optics and photonics. Lasers and laser-related equipment. Standard optical elements. Part 1. Standard optical elements for laser equipment operating in the ultraviolet, visible and near-infrared spectral ranges. General technical requirements
