NEN-ISO 7574-3
Acoustics - Statistical methods for determining and verifying stated noise emission values of machinery and equipment - Part 3: Simple (transition) method for batches of machines
| Organization: | NEN |
| Publication Date: | 1 May 1990 |
| Status: | active |
| Page Count: | 8 |
| ICS Code (Noise emitted by machines and equipment): | 17.140.20 |
scope:
This part of ISO 7574 is derived from ISO 7574/4. It provides guidelines for determining the labelled value, L2 by the labeller and specifies a simple method for verifying compliance of the noise emissions of a batch (lot) of machinery or equipment with its labelled value Lc. This method may be used when a specific noise labelling code (in accordance with clause 6 of ISO 7574/4) specifying the reference standard deviation, sample size and sampling procedure for the family of machines does not yet exist. If a specific noise labelling code exists, it shall be used, in which case reference to this part of ISO 7574 shall not be made.
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