ISO 140-16:2006

Acoustics — Measurement of sound insulation in buildings and of building elements — Part 16: Laboratory measurement of the sound reduction index improvement by additional lining

ISO 140-16:2006, as a complement to ISO 140-3, specifies the laboratory measurement of the improvement of the sound-reduction index of a wall or ceiling when covered by an additional acoustical lining. It also provides for individual non-standardized basic elements. ISO 140-16:2006 does not deal with the sound-reduction improvement by linings on flexible lightweight structures, such as timber-frame floors or double-leaf gypsum board walls.

Acoustique — Mesurage de l'isolation acoustique des immeubles et des éléments de construction — Partie 16: Mesurage en laboratoire de l'amélioration de l'indice de réduction acoustique par un revêtement complémentaire

General Information

• Status: Withdrawn
• Publication Date: 08-Aug-2006
• Withdrawal Date: 08-Aug-2006
• ICS: 91.120.20 - Acoustics in building. Sound insulation
• Technical Committee: ISO/TC 43/SC 2 - Building acoustics
• Drafting Committee: ISO/TC 43/SC 2/WG 18 - Measurement of sound insulation in buildings and of building elements
• Current Stage: 9599 - Withdrawal of International Standard
• Completion Date: 17-Aug-2010

Relations

• Revised: ISO 10140-5:2010 - Acoustics — Laboratory measurement of sound insulation of building elements — Part 5: Requirements for test facilities and equipment
• Effective Date: 23-Jan-2010
• Revised: ISO 10140-2:2010 - Acoustics — Laboratory measurement of sound insulation of building elements — Part 2: Measurement of airborne sound insulation
• Effective Date: 23-Jan-2010
• Revised: ISO 10140-4:2010 - Acoustics — Laboratory measurement of sound insulation of building elements — Part 4: Measurement procedures and requirements
• Effective Date: 23-Jan-2010
• Revised: ISO 10140-1:2010 - Acoustics — Laboratory measurement of sound insulation of building elements — Part 1: Application rules for specific products
• Effective Date: 23-Jan-2010
• Revised: ISO 10140-3:2010 - Acoustics — Laboratory measurement of sound insulation of building elements — Part 3: Measurement of impact sound insulation
• Effective Date: 23-Jan-2010
• Consolidates: ISO 105-J01:1997 - Textiles — Tests for colour fastness — Part J01: General principles for measurement of surface colour
• Effective Date: 06-Jun-2022

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 140-16
First edition
2006-08-15


Acoustics — Measurement of sound
insulation in buildings and of building
elements —
Part 16:
Laboratory measurement of the sound
reduction index improvement by
additional lining
Acoustique — Mesurage de l'isolation acoustique des immeubles et des
éléments de construction —
Partie 16: Mesurage en laboratoire de l'amélioration de l'indice de
réduction acoustique par un revêtement complémentaire





Reference number
ISO 140-16:2006(E)
©
ISO 2006

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ISO 140-16:2006(E)
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ii © ISO 2006 – All rights reserved

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ISO 140-16:2006(E)
Contents Page
Foreword. iv
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and symbols. 1
4 Principle. 3
5 Test arrangement. 3
6 Test procedure . 4
7 Evaluation of results. 5
8 Precision. 5
9 Expression of results . 5
10 Test report . 5
Annex A (normative) Weighting procedure. 7
Annex B (normative) Sound reduction indices of the reference basic elements. 8
Bibliography . 13

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ISO 140-16:2006(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 140-16 was prepared by the European Committee for Standardization (CEN) Technical Committee
CEN/TC 126, Acoustic properties of building products and of buildings, in collaboration with Technical
Committee ISO/TC 43, Acoustics, Subcommittee SC 2, Building acoustics, in accordance with the Agreement
on technical cooperation between ISO and CEN (Vienna Agreement).
ISO 140 consists of the following parts, under the general title Acoustics — Measurement of sound insulation
in buildings and of building elements:
⎯ Part 1: Requirements for laboratory test facilities with suppressed flanking transmission
⎯ Part 2: Determination, verification and application of precision data
⎯ Part 3: Laboratory measurements of airborne sound insulation of building elements
⎯ Part 4: Field measurements of airborne sound insulation between rooms
⎯ Part 5: Field measurements of airborne sound insulation of façade elements and façades
⎯ Part 6: Laboratory measurements of impact sound insulation of floors
⎯ Part 7: Field measurements of impact sound insulation of floors
⎯ Part 8: Laboratory measurements of the reduction of transmitted impact noise by floor coverings on a
heavyweight standard floor
⎯ Part 9: Laboratory measurements of room-to-room airborne sound insulation of a suspended ceiling with
a plenum above it
⎯ Part 10: Laboratory measurement of airborne sound insulation of small building elements
⎯ Part 11: Laboratory measurements of the reduction of transmitted impact sound by floor coverings on
lightweight reference floors
⎯ Part 12: Laboratory measurement of room-to-room airborne and impact sound insulation of an access
floor
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ISO 140-16:2006(E)
⎯ Part 13: Guidelines
⎯ Part 14: Guidelines for special situations in the field
⎯ Part 16: Laboratory measurement of the sound reduction index improvement by additional linings
⎯ Part 18: Laboratory measurement of sound generated by rainfall on building elements
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ISO 140-16:2006(E)
Introduction
There is a strong need to separately characterize the sound reduction effect of walls or floors and acoustic
linings. On the one hand, different industries are involved. On the other hand, the European calculation model
for the acoustic performance of buildings from the performance of elements distinguishes the sound reduction
index of a wall (or floor) and the improvement of the sound reduction index by an additional lining. The
laboratory measurement of this sound reduction improvement is the subject of this part of ISO 140-16.
Characterizing a lining alone requires that its acoustic performance be independent from the basic structure to
which it is fixed. This is fulfilled when the mass per unit area of the basic structure is much larger than the
surface mass of the lining, when the coincidence frequency of the basic structure is below the measured
frequency range and the structural coupling between the lining and the basic structure is small. If the actual
situation differs from these conditions, the effect of the lining is, at least to some extent, dependent on the
properties of the basic structure. The independent characterization of the acoustic performance of a lining thus
requires very heavy massive elements, while a lot of practical applications involve various lightweight
elements. As a practical compromise, different steps of testing are provided.
2
⎯ In any case, the lining is applied to either a heavy massive wall of about 350 kg/m with its coincidence
frequency around 125 Hz or to the standard concrete floor according to ISO 140-8, depending on the use
of the lining. The measured improvement by the lining is given as a frequency spectrum and as a single-
number improvement value in accordance with Annexes A and B. Being based on mean basic element
characteristics, the results are largely independent of the particular features of the test facility and the
basic element used and thus characterize the lining in the most general way.
⎯ If the performance of a lining on a generalized lightweight solid wall is of interest, a standard lightweight
2
basic wall of about 70 kg/m and coincidence frequency around 500 Hz are used. The results are given
as a frequency spectrum and as a single-number improvement value according to Annexes A and B. The
central position of the coincidence frequency can strongly influence the improvement by the lining.
Therefore, the results are not likely to be transferable to other basic constructions. But by using the
weighting procedure in Annexes A and B, the influences of the particular test facility and basic
construction are minimized, thus making the results comparable between different laboratories.
⎯ In order to specify the effect of linings in specific situations, other basic structures can be used in addition
to those specified for the general characterization of the product. As no mean values of the properties of
the basic element are available in this case, single-number results can only be given in terms of the direct
difference between the weighted sound-reduction indices with and without lining (subsequently called
“direct difference of the weighted sound reduction indices”). These improvement values include the
particular features of the laboratory and the basic element, thus allowing a comparison of different linings
under these particular conditions.
Flexible, lightweight basic elements and elements with thickness resonances within the measured frequency
range are outside the scope of this part of ISO 140, as their influence is not predictable.
For standardization reasons and comparability, all measurements and evaluations are normatively done in
third-octave bands. Additional octave-band results can optionally be deduced from the third-octave band
results.
The sound-reduction improvement of a lining can be different for direct and flanking sound transmission, as
well as for airborne and impact sound excitation. The method described in this part of ISO 140 yields the
sound-reduction improvement for direct airborne sound transmission.

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INTERNATIONAL STANDARD ISO 140-16:2006(E)

Acoustics — Measurement of sound insulation in buildings and
of building elements —
Part 16:
Laboratory measurement of the sound reduction index
improvement by additional lining
1 Scope
This part of ISO 140, as a complement to ISO 140-3, specifies the laboratory measurement of the
improvement of the sound-reduction index of a wall or ceiling when covered by an additional acoustical lining.
It also provides for individual non-standardized basic elements. This part of ISO 140 does not deal with the
sound-reduction improvement by linings on flexible lightweight structures, such as timber-frame floors or
double-leaf gypsum board walls.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 140-1, Acoustics — Measurement of sound insulation in buildings and of building elements —
Part 1: Requirements for laboratory test facilities with suppressed flanking transmission
ISO 140-3, Acoustics — Measurement of sound insulation in buildings and of building elements —
Part 3: Laboratory measurements of airborne sound insulation of building elements
ISO 140-8, Acoustics — Measurement of sound insulation in buildings and of building elements —
Part 8: Laboratory measurements of the reduction of transmitted impact noise by floor coverings on a
heavyweight standard floor
ISO 717-1, Acoustics — Rating of sound insulation in buildings and of building elements — Part 1: Airborne
sound insulation
ISO 717-2, Acoustics — Rating of sound insulation in buildings and of building elements — Part 2: Impact
sound insulation
3 Terms, definitions and symbols
For the purposes of this document, the following terms, definitions and symbols apply.
3.1
sound reduction index
R
ten times the logarithm to the base 10 of the ratio of the sound power, W , that is incident on the test
1
specimen to the sound power, W , transmitted through the specimen, in a stated frequency band, as given in
2
Equation (1):
W
1
R = 10lg dB (1)
W
2
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ISO 140-16:2006(E)
3.2
weighted sound-reduction index
R
w
single-number quantity for airborne sound insulation rating of the reference curve after shifting it in
accordance with the method specified in ISO 717-1
NOTE The weighted sound-reduction index is expressed in units of decibels.
3.3
sound reduction improvement index
∆R
difference of the sound reduction indices of the basic element with and without the lining for each third-octave
band, as given in Equation (2):
∆=RR −R (2)
with without
3.4
weighted sound reduction improvement index
∆R
w
single-number value calculated from the sound reduction improvement index, ∆R, in accordance with
Annexes A and B
NOTE An additional subscript indicates the basic element used: “heavy” for the heavyweight wall and floor according
to 5.3.2. and 5.3.3, “light” for the lightweight wall according to 5.3.4.
EXAMPLE ∆R .
w,heavy
3.5
direct difference of the weighted sound reduction indices
∆R
w,direct
difference of the weighted sound reduction indices of the basic element with and without lining, as given in
Equation (3):
∆RR=−R (3)
w,direct w,with w,without
3.6
A-weighted sound reduction improvement indices
∆(R + C)
w
∆(R + C )
w tr
A-level difference caused by the lining when the exciting sound source sends pink noise (C) or standardized
traffic noise (C )
tr
NOTE 1 C and C are the spectrum-adaptation terms in accordance with ISO 717-1.
tr
NOTE 2 For calculation see Annex A.
NOTE 3 An additional index indicates the basic element used: “heavy” for the heavyweight wall and floor in accordance
with 5.3.2. and 5.3.3, “light” for the lightweight wall in accordance with 5.3.4.
EXAMPLE ∆(R +C) .
w heavy
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ISO 140-16:2006(E)
3.7
direct difference of the A-weighted sound reduction indices
∆(R + C)
w direct
∆(R + C )
w tr direct
difference between the A-weighted sound-reduction indices of the basic element with and without lining under
the particular conditions of the measurement (without generalization by means of a reference curve for the
...