Akustik i byggnader. Ljudisolering.

Kommittébeteckning: SIS/TK 197 (Byggakustik)
Källa: CEN
Svarsdatum: den 27 feb 2020
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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 for example in accordance with ISO 10140-2, and ISO 16283-1.

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.

Kommittébeteckning: SIS/TK 197 (Byggakustik)
Källa: CEN
Svarsdatum: den 10 mar 2020
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This part of ISO 717:

a) defines single-number quantities for impact sound insulation in buildings and of floors;

b) gives rules for determining these quantities from the results of measurements carried out in one-third-octave bands in accordance with ISO 10140-3 and ISO 16283-2, and in octave bands in accordance with that option in ISO 16283-2 for field measurements only;

c) defines single-number quantities for the impact sound reduction of floor coverings and floating floors calculated from the results of measurements carried out in accordance with ISO 10140-3;

d) specifies a procedure for evaluating the weighted reduction in impact sound pressure level by floor coverings on lightweight floors.

The single-number quantities in accordance with this part of ISO 717 are intended for rating impact 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 rating of results from measurements carried out over an enlarged frequency range is described in Annex A.

A method for obtaining single-number quantities for bare heavy floors according to their performance in combination with floor coverings is described in Annex B.

Examples of the calculation of a single-number quantity is given in Annex C.

A method for rating heavy/soft impact sound insulation performance of building and building materials by A-weighted maximum impact sound pressure level is given in Annex D.

Kommittébeteckning: SIS/TK 110 (Akustik och buller)
Källa: ISO
Svarsdatum: den 13 apr 2020
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This document applies to all open-plan offices, in which the following activities are performed:

— Space type 1: when the activity isn’t known yet – vacant floor plate;

— Space type 2: activity mainly focusing on outside of the room communication (by telephone/audio/video);

— Space type 3: activity mainly based on collaboration between people at nearest workstation;

— Space type 4: activity based on a small amount of collaborative work;

— Space type 5: activity which may involve receiving the public;

— Space type 6: combining activities within the same space.

It is a guide to support technical dialogue and formal commitment between the various stakeholders involved in the planning, design, construction or layout of open-plan workspaces: end customers, project owners, prescribers, consultants, etc.

More specifically, it applies to refitting projects of existing business sites (renovation and/or change or add activities) and layout projects for new spaces and spaces delivered unfurnished.

This document covers all activities and applies to the operations of the following stakeholders:

— end customer: diagnosis, survey, expression of needs in keeping with his knowledge in the area of acoustics;

— project owner: drafting contract specifications;

— project management companies (architects, acousticians, ergonomists, economists and consulting engineers): indicating the performance of acoustic solutions and the layout principles used to achieve the result expressed in the specifications;

— building trade: reaching a clear and verifiable target with respect to the choices of materials and implementation;

— promoter: promoting acoustic comfort in estate operations in order to use it as a competitive element;

— specialists in occupational health, safety and quality;

— expert assessments and consultancy.