Occupational safety standards system. Special footwear for protection against risks in foundries and welding shops. Part 1. Requirements and methods of testing shoes against risks in foundries
State system for ensuring the uniformity of measurements. State verification schedule for measuring means of spectral, integral and reduced regular transmissivities within the wavelength ranges of 0.2-50.0 um, diffused and mirror reflections within the wavelength ranges of 0.1-20.0 um
