NF EN ISO 12999-2:2020
Current
The latest, up-to-date edition.
Acoustics - Determination and application of measurement uncertainties in building acoustics - Part 2 : sound absorption
Hardcopy
English - French
01-07-2020
This document specifies how to calculate: —the uncertainty of sound absorption coefficients and equivalent sound absorption areas measured according toISO354; —the uncertainty of the practical and weighted sound absorption coefficients determined according toISO11654; —the uncertainty of the object sound absorption coefficient according toISO20189; and —the uncertainty of the single number rating determined according toEN1793-1.
Important note : All end users must be registered with an Account prior to user licenses being assigned.Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.