Russian standards PDF
Tourism and related services. Trails. Arrangement of trails in order to ensure the safety of tourists and environmental protection. Minimum requirements
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Tourism and related services. Services of accommodation facilities «All inclusive» and «Ultra all inclusive». General requirements
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Non-destructive testing. Performance-based qualification
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Non-destructive testing. NDT training syllabuses
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United power system and isolated power systems. Relay protection and automation. Differential phase protection of power lines at voltage 330 kV and above. Testing
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United power system and isolated power systems. Relay protection and automation. Differential protection of power lines at voltage 330 kV and above. Testing
Document status: Active