ISO 7574-4:1985 Preview
Acoustics -- Statistical methods for determining and verifying stated noise emission values of machinery and equipment -- Part 4: Methods for stated values for batches of machines
This standard was last reviewed and confirmed in 2012. Therefore this version remains current.
Provides guidelines for determining the labelled value by the labeller and specifies statistical sampling procedures for checking compliance of noise emitted of a lot of machines with its labelled value. Does not deal with the consequences that ensue if the specified value is not confirmed as checked for a lot of machines.
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