Fire detection and alarm systems - Point-type flame detectors Ingestion-build-260237 BS EN 13698-2 also gives

BS EN 13698-2 also gives some requirements for the manufacture and marking and addresses the issue of safety

provided that the motoring frequency is in the range from 50 Hz to 400 Hz

methods of testing and required test results of shipborne DGPS and DGLONASS maritime radio beacon receiver equipment

BS EN ISO 21649 is the British Standard applicable to safety and performance and testing requirements for single-use and multiple-use needle-free injection systems intended for human use in clinics and other medical settings and for personal use by patients

Quality level B corresponds to the highest requirement on the finished weld

Fire detection and alarm systems - Point-type flame detectors Ingestion-build-260237 BS EN 13698-2 also gives