NF ISO 15665, S30-108 (01/2024)

This document defines the acoustic performance of four classes (classes A, B, C and D) of pipe insulation. It also defines a standardized test method for measuring the acoustic performance of any type of construction material system, thereby allowing new and existing insulations to be assessed against the four classes. In addition, this document describes certain typical construction methods likely to meet these acoustic performance classes. This document is applicable to the sound insulation of cylindrical steel pipes and their piping components. It is valid for pipes up to 1 m in diameter and with a minimum wall thickness of 4.2 mm, for diameters less than 300 mm and 6.3 mm, for diameters greater than or equal to 300 mm . It is not applicable to the sound insulation of rectangular ducts, nor to that of tanks or machines. This document deals with the evaluation of the sound insulation performance of pipes both in the design phase and on installations in operation. It provides guidelines for acoustic engineers to determine the required class and extent of insulation needed for a given application. It provides typical examples of construction methods, however these examples are for informational purposes only and are not intended to be prescriptive. This document specifies the aspects of acoustic insulation which differ from those of thermal insulation, and serves as a guide to both installers and acoustic engineers. Details relating to thermal insulation are excluded from the scope of this document.
(Automatic translation from French)