Modular order for the development of mechanical structures for radioelectronic equipment. Part 2. Sectional standard. Interface coordination dimensions for the 25 mm equipment practice. Section 2. Detail standard. Dimensions for subracks, chassis, backplanes, front panels and plug-in units
Occupational safety standards system. Respiratory protective devices. Filtering half masks against aerosols with additional protection against vapors and gases. General technical requirements. Test methods. Marking
Electric and optical fibre cables. Test methods for non-metallic materials. Part 605. Physical tests. Measurement of carbon black and/or mineral filler in polyethylene compounds
