Acoustics. Determination of sound power levels of noise sources using sound intensity - Measurement at discrete points1 Scope 1. 1 This part of ISO 9614 specifies a method for measuring the component of sound intensity normal to a measurement surface which is chosen so as to enclose the noise source(s) of which the sound power level is to be determined. The one octave, one third octave or band limited weighted sound power level is calculated from the measured values. The method is applicable to any source for which a physically stationary measurement surface can be

Designers of steel tubes

Results should be interpreted with care

Reference can be made to EN 1559-1 [3] and EN 1559-3 [4]

by the implementation of PD ISO/TR 19688

BS 341-1 applies to valves limited to a charging pressure of 300 bar1 (developed pressures for particular gases may exceed this pressure)

BS EN 50570 helps to recognize the level of protection against hazards such as electrical

BS EN 61249-2-4 is the second part of the multi-series standard used for interconnecting structures

Dosimetry procedures related to the development

• Flow chart for obtaining alien crosstalk performance data

BS 6708 includes some technical changes with respect to BS 6708: 1991

and reproducibility in the determination of methanol content of fatty acid and methyl ester

BS 1428-D4 guides you on the finish of the top of the pipette