Acoustics. Measurements on silencers in situ1 Scope 1. 1 This International Standard specifies measurements on silencers in situ. It is applicable to measurements on silencers in practical applications for acoustic analysis, acceptance tests and similar evaluations. Results obtained in accordance with this International Standard cannot be compared to performance data obtained from laboratory measurements on ducted silencers in accordance with ISO 7235, partly because of different test

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BS EN 61300-2-2 provides you with a test method in which the device is tested under normal conditions of use

ISO 11438-8 provides you with the measurement of the absorption of the resonance line energy from the spectrum of indium in the test solution at a wavelength of 325

BS 7335-2 describes good practices for working procedures in the installation of refractory linings by gunning techniques

BS 5440-2 gives practical guidance to gas installers for installing and maintaining gas appliance combustion and/or cooling ventilation

NOTE: The basic requirements for diving apparatus and demand regulators as per BS EN 250 and BS EN 15333-1 have been retained

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It may be of particular interest to new starts and small medical device manufacturers