ISO 717-1:2013 pdf download.Acoustics – Rating of sound insulation in buildings and of building elements -Part 1:Airborne sound insulation.
This part of Iso 717:
a) defines single-number quantities for airborne sound insulation in buildings and of building elements such as walls, floors, doors, and windows;
b) takes into consideration the different sound level spectra of various noise sources such as noise sources inside a building and traffic outside a building;
c) gives rules for determining these quantities from the results of measurements carried out in one- third-octave or octave bands in accordance with ISO 10140-2, ISO 140-4, and ISO 140-5.
The single-number quantities in accordance with this part of ISO 717 are intended for rating airborne sound insulation and for simplifying the formulation of acoustical requirements in building codes. An additional single-number evaluation in steps of 0,1 dB is indicated for the expression of uncertainty (except for spectrum adaptation terms). The required numerical values of the single-number quantities are specified according to varying needs. The single-number quantities are based on results of measurements in one-third-octave bands or octave bands.
For laboratory measurements made in accordance with ISO 10140, single-number quantities should be calculated using one-third-octave bands only.
The rating of results of measurements carried out over an enlarged frequency range is dealt with in Annex B.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 140-4:1998, Acoustics — Measurement of sound insulation in buildings and of building elements — Part 4: Field measurements of airborne sound insulation between rooms
ISO 140-5:1998, Acoustics — Measurement of sound insulation in buildings and of building elements — Part 5: Field measurements of airborne sound insulation offaçade elements and façades
ISO 10140-2:2010, Acoustics — Laboratory measurement ofsound insulation of building elements — Part 2:
Measurement of airborne sound insulation
ISO 10848-2:2006, Acoustics — Laboratory measurement of the flanking transmission of airborne and impact sound between adjoining rooms — Part 2: Application to light elements when the junction has a small influence
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
single-number quantity for airborne sound insulation rating
value, in decibels, of the reference curve at 500 Hz after shifting it in accordance with the method specified in this part of ISO 717
Note 1 to entry: Terms and symbols for the single-number quantity used depend on the type of measurement. Examples are listed in Table 1 for airborne sound insulation properties of building elements and in Table 2 for airborne sound insulation in buildings. In general, new single-number quantities are derived in a similar way.
3.2
spectrum adaptation term
value, in decibels, to be added to the single-number rating (e.g. R) to take account of the characteristics of particular sound spectra
Note 1 to entry: Two sound spectra are defined (in one-third-octave bands and in octave bands) in this part of ISO 717. Note 2 to entry: Annex A gives in formation on the purpose of introducing these two spectrum adaptation terms.ISO 717-1 pdf download.