Russian standards PDF
Condition monitoring and diagnostics of machines. Power transformers
Document status: Active
Environmental protection. Surface and underground waters. General provisions for protection against pollution during drilling and extracting of oil and gas on land
Document status: Active
Environmental protection. Recommendations for the formation of environmental safety and environmental protection requirements
Document status: Active
Explosive atmospheres. Part 20-1. Material characteristics for gas and vapour classification. Test methods and data
Document status: Active