Pumps
Electrically-operated devices
Household equipment
Grades (quality)
Central heating
Motor pumps
Hot-water supply systems
Instructions for use
Performance testing
Testing conditions
Stationary
Rated voltage
Protected electrical equipment
Heating tests
Hot-water central heating
Water pumps
Electrical safety
Electrical household appliances
Endurance testing
Cold-water supply systems
Heating equipment
Temperature rise
Marking