Acoustic sound absorption coefficient measurement

Acoustic sound absorption coefficient measurement, Total:189 items.

The international standard classification for "Acoustic sound absorption coefficient measurement" includes: Acoustics and acoustic measurements , Acoustics measurements and noise abatement in general .

The Chinese standard classification for "Acoustic sound absorption coefficient measurement" includes: Acoustic Measurement , Architectural physics , Basic standards and general methods .

General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China

GB/T 5266-2006 Acoustics—Measurements of the longitudinal wave velocity and attenuation coefficient for underwater acoustical materials—Pulse tube method
GB/T 18696.1-2004 Acoustics - Determination of sound absorption coefficient and impedance in impedance tubes - Part 1:Method using standing wave ratio
GB/T 25077-2010 Acoustics—Materials for acoustical applications—Determination of airflow resistance
GBJ 47-1983 Acoustics-sound-abserbin coefficient measurement by method of reverbration room (Trial)
GB 5266-2006 Acoustics—Measurements of the longitudinal wave velocity and attenuation coefficient for underwater acoustical materials—Pulse tube method
GBJ 88-1985 Measurement of sound-absorbing coefficient and sound-resistance rate by method of standing wave tubes
GB/T 32523-2016 Acoustics-Measurement of sound pressure reflection coefficient,sound pressure transmission coefficient and absorption coefficient for underwater acoustical material sample-Travelling wave tube method
GB/T 18696.2-2002 Acoustics - Determinatio of sound absorption coefficient and impedance in impedance tubes - Part 2: Transfer function method
GB/T 20247-2006 Acoustics - Measurement of Sound Absorption in a Reverberation Room
GB/T 5265-2009 Acoustics—Measurement of underwater noise
GB/T 14369-2011 Acoustics—Measurement methods of insertion loss,echo reduction and sound absorption coefficient for underwater acoustical material samples

Professional Standard-Ships

CB 20113-2014 Measurement method for acoustical parameters of anechoic tile in acoustical tube

Group Standards of the People's Republic of China

T/JAMIA 003-2023 Laboratory measurement of sound absorption coefficient: small reverberation chamber method

AT-ON

ONORM S 5104-1986 Tests in building acoustics; measurement of the sound absorption coefficient in a reverberation room
ONORM EN 20354-1993 Acoustics - Measurement of sound absorption in a reverberation room (ISO 354:1985)
ONORM S 5001-5-1993 Acoustics - Quantities, units and definitions - Electro acoustics
ONORM S 5001-3-1993 Acoustics - Quantities, units and definitions - Sound measurement and rating quantities
ONORM S 5001-4-1993 Acoustics - Quantrties, units and defmitions - Building acoustics
ONORM ISO 5128:1991 Acoustics - Measurement ofnoise inside motor vehicles

Association Francaise de Normalisation

NF EN ISO 354:2004 Acoustics - Measurement of sound absorption in a reverberation room
NF S31-003*NF EN ISO 354:2004 Acoustics - Measurement of sound absorption in a reverberation room
NF S31-999-2*NF EN ISO 12999-2:2020 Acoustics - Determination and application of measurement uncertainties in building acoustics - Part 2 : sound absorption
NF S31-003:1993 Acoustics. Measurement of sound absorption in a reverberation room.
NF EN ISO 10534-1:2003 Acoustics - Determination of sound absorption factor and acoustic impedance using the impedance tube - Part 1: standing wave rate method
NF EN ISO 10534-2:2003 Acoustics - Determination of sound absorption factor and impedance of impedance tubes - Part 2: transfer function method
NF S31-079-2*NF EN ISO 10534-2:2003 Acoustics - Determination of sound absorption coefficient and impedance in impedance tubes - Part 2 : transfer-function method
NF EN 16487:2014 Acoustique - Code d'essai des plafonds suspendus - Absorption acoustique
NF EN ISO 12999-2:2020 Acoustics - Determination and application of measurement uncertainties in building acoustics - Part 2: sound absorption
NF S32-004*NF EN 16487:2014 Acoustics - Test code for suspended ceilings - Sound absorption
NF S31-079-1*NF EN ISO 10534-1:2003 Acoustics - Determination of sound absorption coefficient and impedance in impedance tubes - Part 1 : method using standing wave ratio
NF EN ISO 11654:1997 Acoustics - Absorbents for use in buildings - Assessment of sound absorption
NF EN ISO 3382-1:2010 Acoustics - Measurement of acoustic parameters of rooms - Part 1: performance halls

SCC

BS EN 20354:1993 Acoustics. Measurement of sound absorption in a reverberation room
DIN EN ISO 11654 E:2018 Draft Document - Acoustics - Sound absorbers - Rating of sound absorption coefficients (ISO/DIS 11654.2:2018); German and English version prEN ISO 11654:2018
NS-ISO 354:1985 Acoustics — Measurement of sound absorption in a reverberation room
NS-EN ISO 354:2003 Acoustics — Measurement of sound absorption in a reverberation room (ISO 354:2003)
DANSK DS/EN ISO 354:2003 Acoustics - Measurement of sound absorption in a reverberation room
ASTM C423-84A Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
DANSK DS/EN ISO 10534-2:2001 Acoustics – Determination of sound absorption coefficient and impedance in impedance tubes – Part 2: Transfer-function method
BS 3638:1963 Method for the measurement of sound absorption coefficients (ISO) in a reverberation room
DANSK DS/ISO 10534-2:2023 Acoustics – Determination of acoustic properties in impedance tubes – Part 2: Two-microphone technique for normal sound absorption coefficient and normal surface impedance
DANSK DS/ISO 12999-2:2020 Acoustics – Determination and application of measurement uncertainties in building acoustics – Part 2: Sound absorption
DIN EN 16487 E:2012 Draft Document - Acoustics - Test code for suspended ceilings - Sound absorption; German version prEN 16487:2012
DANSK DS/EN ISO 10534-1:2001 Acoustics - Determination of sound absorption coefficient and impedance in impedance tubes - Part 1: Method using standing wave ratio
NS-EN ISO 11654:1997 Acoustics — Sound absorbers for use in buildings — Rating of sound absorption (ISO 11654:1997)
12/30268211 DC BS EN 16487. Acoustics. Test code for suspended ceilings. Sound absorption
DANSK DS/ISO 2923:1997 Acoustics - Measurement of noise on board vessels
NS-EN ISO 12999-2:2020 Acoustics — Determination and application of measurement uncertainties in building acoustics — Part 2: Sound absorption (ISO 12999-2:2020)
NS-EN ISO 10534-2:2023 Acoustics - Determination of acoustic properties in impedance tubes - Part 2: Two-microphone technique for normal sound absorption coefficient and normal surface impedance (ISO 10534-2:2023)
NS-EN ISO 10534-2:2001 Acoustics - Determination of sound absorption coefficient and impedance in impedances tubes - Part 2: Transfer-function method (ISO 10534-2:1998)
NS 4814:1977 Acoustics — Measurement of noise with sound level meter

German Institute for Standardization

DIN EN ISO 354:2003-12 Acoustics - Measurement of sound absorption in a reverberation room (ISO 354:2003); German version EN ISO 354:2003
DIN EN ISO 354:2003 Acoustics - Measurement of sound absorption in a reverberation room (ISO 354:2003); German version EN ISO 354:2003
DIN EN ISO 10534-2:2001 Acoustics - Determination of sound absorption coefficient and impedance in impedance tubes - Part 2: Transfer-function method (ISO 10534-2:1998); German version EN ISO 10534-2:2001
DIN EN ISO 10534-2 Berichtigung 1:2007-11 Acoustics - Determination of sound absorption coefficient and impedance in impedance tubes - Part 2: Transfer-function method (ISO 10534-2:1998); German version EN ISO 10534-2:2001, Corrigenda to DIN EN ISO 10534-2:2001-10 / Note: To be replaced by DIN...
DIN EN 16487:2015-02 Acoustics - Test code for suspended ceilings - Sound absorption; German version EN 16487:2014
DIN EN ISO 10534-1:2001 Acoustics - Determination of sound absorption coefficient and impedance in impedances tubes - Part 1: Method using standing wave ratio (ISO 10534-1:1996); German version EN ISO 10534-1:2001
DIN EN ISO 10534-2 Berichtigung 1:2007 Acoustics - Determination of sound absorption coefficient and impedance in impedance tubes - Part 2: Transfer-function method (ISO 10534-2:1998); German version EN ISO 10534-2:2001, Corrigenda to DIN EN ISO 10534-2:2001-10
DIN EN ISO 11654:2018 Acoustics - Sound absorbers - Rating of sound absorption coefficients (ISO/DIS 11654.2:2018); German and English version prEN ISO 11654:2018
DIN EN ISO 12999-2:2020-11 Acoustics - Determination and application of measurement uncertainties in building acoustics - Part 2: Sound absorption (ISO 12999-2:2020); German version EN ISO 12999-2:2020
DIN EN ISO 11654:1997 Acoustics - Sound absorbers for use in buildings - Rating of sound absorption (ISO 11654:1997); German version EN ISO 11654:1997
DIN EN ISO 12999-2 E:2019-08 Acoustics Determination and application of measurement uncertainties in building acoustics Part 2: Sound absorption (draft)
DIN EN ISO 10534-2:2001-10 Acoustics - Determination of sound absorption coefficient and impedance in impedance tubes - Part 2: Transfer-function method (ISO 10534-2:1998); German version EN ISO 10534-2:2001 / Note: To be replaced by DIN EN ISO 10534-2 (2022-10).
DIN EN ISO 11654 E:2017-10 Sound absorption classes of sound absorbers used in acoustic buildings (draft)
DIN ISO 2923:2003 Acoustics - Measurement of noise on board vessels (ISO 2923:1996 + Corrigendum 1:1997)
DIN EN ISO 10534-2:2022-10 Acoustics - Determination of acoustic properties in impedance tubes - Part 2: Two-microphone technique for normal sound absorption coefficient and normal surface impedance (ISO/DIS 10534-2:2022); German and English version prEN ISO 10534-2:2022 / Note:...

International Organization for Standardization (ISO)

ISO/CD 354 Acoustics — Measurement of sound absorption in a reverberation room
ISO 354:1985 Acoustics; Measurement of sound absorption in a reverberation room
ISO 354:2003 Acoustics - Measurement of sound absorption in a reverberation room
ISO 10534-2:1998 Acoustics - Determination of sound absorption coefficient and impedance in impedance tubes - Part 2: Transfer-function method
ISO 354:1985/Amd 1:1997 Acoustics - Measurement of sound absorption in a reverberation room; Amendment 1: Test specimen mountings for sound absorption tests
ISO 10534-1:1996 Acoustics - Determination of sound absorption coefficient and impedance in impedance tubes - Part 1: Method using standing wave ratio
ISO 12999-2:2020 Acoustics — Determination and application of measurement uncertainties in building acoustics — Part 2: Sound absorption
ISO 9053:1991 Acoustics; materials for acoustical applications; determination of airflow resistance
ISO 11654:1997 Acoustics - Sound absorbers for use in buildings - Rating of sound absorption
ISO 10534-2:2023 Acoustics — Determination of acoustic properties in impedance tubes — Part 2: Two-microphone technique for normal sound absorption coefficient and normal surface impedance
ISO/DIS 10534-2 Acoustics — Determination of acoustic properties in impedance tubes — Part 2: Two-microphone technique for normal sound absorption coefficient and normal surface impedance
ISO 3382:1997 Acoustics - Measurement of the reverberation time of rooms with reference to other acoustical parameters
ISO 3382-1:2009 Acoustics - Measurement of room acoustic parameters - Part 1: Performance spaces
ISO/DIS 5128 Acoustics — Measurement of interior vehicle noise
ISO 10534-2:2011 Acoustics — Determination of acoustic properties in impedance tubes — Part 2: Two-microphone technique for normal sound absorption coefficient and normal surface impedance
ISO/FDIS 10534-2:2023 Acoustics — Determination of acoustic properties in impedance tubes — Part 2: Two-microphone technique for normal sound absorption coefficient and normal surface impedance

GSO

BH GSO ISO 354:2016 Acoustics -- Measurement of sound absorption in a reverberation room
GSO ISO 354:2013 Acoustics -- Measurement of sound absorption in a reverberation room
GSO ISO 12999-2:2024 Acoustics — Determination and application of measurement uncertainties in building acoustics — Part 2: Sound absorption
OS GSO ISO 10534-2:2013 Acoustics -- Determination of sound absorption coefficient and impedance in impedance tubes -- Part 2: Transfer-function method
GSO ISO 11654:2013 Acoustics -- Sound absorbers for use in buildings -- Rating of sound absorption
OS GSO ISO 11654:2013 Acoustics -- Sound absorbers for use in buildings -- Rating of sound absorption
BH GSO ISO 11654:2016 Acoustics -- Sound absorbers for use in buildings -- Rating of sound absorption
OS GSO ISO 10534-1:2013 Acoustics -- Determination of sound absorption coefficient and impedance in impedance tubes -- Part 1: Method using standing wave ratio
GSO ISO 10534-1:2013 Acoustics -- Determination of sound absorption coefficient and impedance in impedance tubes -- Part 1: Method using standing wave ratio
GSO ISO 13472-1:2014 Acoustics -- Measurement of sound absorption properties of road surfaces in situ -- Part 1: Extended surface method

CZ-CSN

CSN 73 0501-1988 Acoustics Measurement of the soundabsorption coefficient and the acoustic im- pedance by the tube method
CSN ISO 354:1992 Acoustics — Measurement of sound absorption in a reverberant room
CSN 01 1304-1983 Quantitles and units of acoustics

SE-SIS

SIS SS 02 52 61-1986 Building acoustics - Acoustical screens -Measurement of sound absorption - Test methods
SIS SS-ISO 354:1986 Acoustics - Measurement of sound absorption in a reverberation room
SIS SS-ISO 1683:1986 Acoustics - Preferred reference quantities for acoustic leve/s

IT-UNI

EC 1-2021 UNI EN ISO 354:2021 Acoustics - Measurement of sound absorption in a reverberation room

Standard Association of Australia （SAA）

AS 1935:1976 Method for measurement of normal incidence sound absorption coefficient and specific normal acoustic impedance of acoustic materials by the tube method
AS 1045:1988 Acoustics - Measurement of sound absorption in a reverberation room
AS ISO 354:2006 Acoustics - Measurement of sound absorption in a reverberation room

British Standards Institution (BSI)

17/30351686 DC BS EN ISO 11654. Acoustics. Sound absorbers. Rating of sound absorption coefficients
BS EN ISO 10534-2:2001 Acoustics. Determination of sound absorption coefficient and impedance in impedance tubes - Transfer-function method
BS EN ISO 354:2003 Acoustics - Measurement of sound absorption in a reverberation room
BS EN ISO 10534-2:1999 Acoustics - Determination of sound absorption coefficient and impedance in impedance tubes - Transfer-function method
BS EN ISO 12999-2:2020 Acoustics. Determination and application of measurement uncertainties in building acoustics - Sound absorption
BS EN ISO 10534-1:2001 Acoustics - Determination of sound absorption coefficient and impedance in impedances tubes - Method using standing wave ratio
BS EN ISO 11654:1997(2000) Acoustics — Sound absorbers for use in buildings — Rating of sound absorption
BS EN ISO 10534-2:2001(2002) Acoustics — Determination of sound absorption coefficient and impedance in impedance tubes — Part 2 : Transfer - function method
BS ISO 10534-2:1999 Acoustics - Determination of sound absorption coefficient and impedance in impedance tubes - Transfer-function method
BS EN ISO 11654:1997 Acoustics - Sound absorbers for use in buildings - Rating of sound absorption
BS EN 16487:2014 Acoustics. Test code for suspended ceilings. Sound absorption
BS EN ISO 10534-2:2023 Acoustics. Determination of acoustic properties in impedance tubes - Two-microphone technique for normal sound absorption coefficient and normal surface impedance
BS ISO 13472-1:2022 Acoustics. Measurement of sound absorption properties of road surfaces in situ. Extended surface method
BS EN ISO 3382-3:2022 Acoustics. Measurement of room acoustic parameters. Open plan offices
BS EN ISO 3382:2000 Acoustics - Measurement of the reverberation time of rooms with reference to other acoustical parameters
BS ISO 5128:2023 Acoustics. Measurement of interior vehicle noise
BS EN ISO 3382-3:2012 Acoustics. Measurement of room acoustic parameters. Open plan offices

Danish Standards Foundation

DS/EN ISO 354:2003 Acoustics - Measurement of sound absorption in a reverberation room
DS/ISO 354:1986 Acoustics. Measurement of sound absorption in a reverberation room
DS/EN ISO 10534-2:2001 Acoustics - Determination of sound absorption coefficient and impedance in impedance tubes - Part 2: Transfer-function method

Lithuanian Standards Office

LST EN ISO 354:2004 Acoustics - Measurement of sound absorption in a reverberation room (ISO 354:2003)
LST EN ISO 10534-2:2002 Acoustics - Determination of sound absorption coefficient and impedance in impedances tubes - Part 2: Transfer-function method (ISO 10534-2:1998)

European Committee for Standardization (CEN)

EN 20354:1993 Acoustics - Measurement of Sound Absorption in a Reverberation Room (ISO 354 : 1985)
EN ISO 10534-2:2001 Acoustics - Determination of Sound Absorption Coefficient and Impedance in Impedances Tubes - Part 2: Transfer-Function Method
EN ISO 354:2003 Acoustics - Measurement of sound absorption in a reverberation room ISO 354:2003
EN ISO 12999-2:2020 Acoustics - Determination and application of measurement uncertainties in building acoustics - Part 2: Sound absorption (ISO 12999-2:2020)
EN 20354:1994 Acoustics - Measurement of Sound Absorption in a Reverberation Room Amendment 1: Annex D - Test Specimen Mountings for Sound Absorption Tests.
EN ISO 10534-1:2001 Acoustics - Determination of sound absorption coefficient and impedance in impedances tubes - Part 1: Method using standing wave ratio (ISO 10534-1:1996)
EN ISO 3382-3:2022 Acoustics - Measurement of room acoustic parameters - Part 3: Open plan offices (ISO 3382-3:2022)
EN ISO 3382-3:2012 Acoustics - Measurement of room acoustic parameters - Part 3: Open plan offices (ISO 3382-3:2012)

Spanish Association for Standardization (UNE)

UNE-EN ISO 354:2004 Acoustics - Measurement of sound absorption in a reverberation room (ISO 354:2003)
UNE-EN ISO 12999-2:2021 Acoustics - Determination and application of measurement uncertainties in building acoustics - Part 2: Sound absorption (ISO 12999-2:2020)
UNE-EN ISO 10534-2:2002 Acoustics - Determination of sound absorption coefficient and impedance in impedances tubes - Part 2: Transfer-function method. (ISO 10534-2:1998)

RO-ASRO

STAS 10046/2-1992 Builiding acoustics. Determination of absorption coefficient and acoustic impedance of materials by sound interferometer method
STAS 10046/1-1992 Buildings acoustics. Determination of absorption coefficient of materials and specific acoustic absorption of bodies by reverberation room method

American National Standards Institute （ANSI)

ANSI/ASTM C423-1984 Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
ANSI/ASTM C423-1977 Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
ANSI/ASTM C423-00:2000 Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method

American Society for Testing and Materials (ASTM)

ASTM RR-E33-1011 2007 C0423-Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
ASTM RR-E33-1010 2006 C0423-Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
ASTM RR-E33-1005 1988 C0423-Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
ASTM C423-22 Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
ASTM C423-09 Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
ASTM C423-08a Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
ASTM C423-01 Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
ASTM C423-07a Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
ASTM C423-02 Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
ASTM C423-02a Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
ASTM C423-06 Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
ASTM C423-07 Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
ASTM C423-02ae1 Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
ASTM C423-17 Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
ASTM C423-08 Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
ASTM C423-23e1 Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
ASTM C423-99a Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
ASTM C423-23 Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
ASTM C423-00 Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
ASTM C423-09a Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method

Korean Agency for Technology and Standards (KATS)

KS F 2814-2-2002(2017) Acoustics-determination of sound absorption coefficient and impedance in impedance tubes－Part 2：Transfer-function method
KS F 2814-2-2022 Acoustics-determination of sound absorption coefficient and impedance in impedance tubes－Part 2：Transfer-function method
KS F 2814-2-2002(2022) Acoustics-determination of sound absorption coefficient and impedance in impedance tubes－Part 2：Transfer-function method
KS F ISO 11654-2023 Acoustics－Sound absorbers for use in buildings－Rating of sound absorption
KS F ISO 9053:2005 Determination of airflow resistance for acoustical materials
KS F ISO 9053:2015 Determination of airflow resistance for acoustical materials
KS F ISO 11654:2003 Acoustics－Sound absorbers for use in buildings－Rating of sound absorption
KS I 6101-2014(2020) Absorptive duct silencer
KS F 2814-2001 METHODS OF TEST FOR SOUND ABSORPTION OF ACOUSTICAL MATERIALS BY THE TUBE METHOD
KS I 6132-2014 Acoustics — Measurement of noise inside aircraft
KS F ISO 3382-1:2018 Acoustics - Measurement of room acoustic parameters - Part 1: Performance spaces
KS I ISO 2923-2010(2015) Acoustics－Measurement of noise on board vessels
KS V ISO 2923:2007 Acoustics－Measurement of noise on board vessels

KR-KS

KS F ISO 11654-2003(2023) Acoustics－Sound absorbers for use in buildings－Rating of sound absorption
KS F ISO 3382-1-2018 Acoustics - Measurement of room acoustic parameters - Part 1: Performance spaces
KS V ISO 2923-2007 Acoustics－Measurement of noise on board vessels
KS F ISO 3382-1-2018(2023) Acoustics - Measurement of room acoustic parameters - Part 1: Performance spaces

YU-JUS

JUS U.J6.059-1982 Measurement of absorption coefficient in a reverberatian roum
JUS U.J6.224-1983 Determination of sourd apsorption coefficient in tube

BE-NBN

NBN S 01-205-1979 Acoustics - Determination of sound power levels of noise sources -Prcecision methods for anechoic and semi-anechoic rooms
NBN-ISO 354:1992 Acoustics. Measurement of sound absorption in a reverberation room
NBN-ISO 1683:1992 Acoustics. Preferred reference quantities for acoustic levels

Japanese Industrial Standards Committee (JISC)

JIS A 1405-2:2007 Acoustics -- Determination of sound absorption coefficient and impedance in impedance tubes -- Part 2: Transfer-function method
JIS A 1405-1:2007 Acoustics -- Determination of sound absorption coefficient and impedance in impedance tubes -- Part 1: Method using standing wave ratio

Canadian General Standards Board （CGSB)

CGSB 92.1-M89-CAN/CGSB-1989 Sound Absorptive Prefabricated Acoustical Units

PL-PKN

PN-EN ISO 12999-2-2021-01 E Acoustics -- Determination and application of measurement uncertainties in building acoustics -- Part 2: Sound absorption (ISO 12999-2:2020)

NZ-SNZ

NZS 6801:1999 Acoustics - Measurement of Environmental Sound

TR-TSE

TS 2635-1977 Acoustics-Measurement Of Noise On Board Vessels

RU-GOST R

GOST R ISO 3382-1-2013 Acoustics. Measurement of room acoustic parameters. Part 1. Performance spaces