Compressors and condensing units for refrigeration. Performance testing and test methods - Refrigerant compressorsWhat is BS EN 13771 1 Performance test methods of refrigerant compressors about? BS EN 13771 1 is the first part of the BS EN 13771 series of standards that specifies performance test methods for refrigerant compressors. These methods provide sufficiently accurate results for the determination of the refrigerating capacity, power absorbed, refrigerant mass flow, isentropic efficiency and the coefficient of performance. BS EN 13771 1 applies only to

It is acknowledged that technical performance testing is only one form of biometric testing

used to convey air throughout a building

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Note 2: The use of thread sizes larger than M39 is not precluded provided all applicable requirements of BS EN 15048-1 are met

— pumps (IEC 60335‑2‑41)

aircraft engines and rocket engines

An alphabetical list of names in common use is provided

BS EN 13277-5 has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association and supports essential requirements of EU Directive 89/686/EEC

Point detectors manufacturers

EN 50306 and EN 50382 to ensure essential safety is achieved

BS EN 10263-3 is applicable to round rods

Is now focused on general guidelines with all technical details of procedures and qualification principles moved to the subsequent parts