BS 6283-3:1991 Safety and control devices for use in hot water systems-Specification for combined temperature and pressure relief valves for pressures from 1 bar to 10 bar
2000BS EN 1490:2000 Строительная арматура. Комбинированные предохранительные клапаны температуры и давления. Испытания и требования
1991BS 6283-3:1991 Safety and control devices for use in hot water systems-Specification for combined temperature and pressure relief valves for pressures from 1 bar to 10 bar