Inland water transport. Infrastructure objects. Operation of embankments, retaining semi-gravity and gravity walls. Monitoring the technical condition of various semi-gravitational structures. Basic requirements
Occupational safety standards system. Power frequency electric fields. Permissible levels of field strength and requirements for control at work-places
State system for ensuring the uniformity of measurements. State verification scheme for measuring and reproduction instruments of sound pressure in water within frequency range from 1·10 -3 to 1·10 6 Hz
€10
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