Atmospheric air quality. Methods for determining the fractional composition of dust by optical method. Calculation of suspended particle concentrations РМ2.5, РМ10 in atmospheric air based on fractional composition
Plastic piping systems. Mechanical joints between fittings and pressure pipes. Test method for resistance to pull-out under constant longitudinal force
Electrical installations of buildings. Part 7-740. Requirements for special installations or locations. Temporary electrical installations for structures, amusement devices and booths at fairgrounds, amusement parks and circuses
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