Turbocompressors. Performance test code PAS 015 Annex A (normative) Noise test

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Turbocompressors. Performance test code PAS 015 Annex A (normative) Noise test1 Scope This International Standard applies to performance tests on turbocompressors of all types. It does not apply to fans and high vacuum pumps, or to jet type compressors with moving drive components Turbocompressors comprise machines in which inlet, compression and discharge are continuous flow processes. The gas is conveyed and compressed in impellers and decelerated with further increase in pressure in fixed vaned or vaneless stators. This