17.140.99 – Other standards related to acoustics – PDF Standards Store

IEC TR 61305-6:2005

Tue, 05 Nov 2024 20:02:36 +0000

Household high-fidelity audio equipment and systems - Methods of measuring and specifying the performance - Part 6: Listening tests on loudspeakers - Single stimulus ratings and paired comparisons

Published By	Publication Date	Number of Pages
IEC	2005-05-03	26

DIN EN ISO 7235:2010 Edition

Tue, 05 Nov 2024 17:31:06 +0000

Akustik - Labormessungen an Schalldämpfern in Kanälen - Einfügungsdämpfung, Strömungsgeräusch und Gesamtdruckverlust

Published By	Publication Date	Number of Pages
DIN	2010-01	64

DIN EN ISO 11957:2010 Edition

Tue, 05 Nov 2024 16:54:06 +0000

The document specifies methods for the determination of the sound insulation performance of sound-insulating cabins by measurements under laboratory or in-situ conditions. The sound insulation is the reduction in sound power level or sound pressure level effected by the cabin. The methods can be applied to closed cabins or cabins with little leakage. Only complete cabins (as opposed to building elements) can be measured according to the document. The requirements for the measurement environment are based upon those of ISO 3741.

ASTM-F2117:2024 Edition

Sun, 20 Oct 2024 10:36:20 +0000

ASTM F2117-10-Reapproved2024

Active Standard: Standard Test Method for Vertical Rebound Characteristics of Sports Surface/Ball Systems; Acoustical Measurement

ASTM F2117

Scope

1.1 This test method covers the quantitative measurement and normalization of the vertical rebound produced during impacts between athletic balls and athletic surfaces.

1.2 Measurements may be conducted on nonathletic surfaces to test the performance properties of the ball.

1.3 Measurements may be conducted using nonathletic balls to test the performance properties of the surface.

1.4 The methods described are applicable in both laboratory and field settings.

1.5 The values stated in metric units are to be regarded as the standard. The inch-pound units given in parentheses are for reference only.

1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Keywords

sports surface; vertical ball rebound; acoustic rebound;

ICS Code

ICS Number Code 17.140.99 (Other standards related to acoustics)

DOI: 10.1520/F2117-10R24

BS EN IEC 63305:2024

Sun, 20 Oct 2024 09:51:08 +0000

IEC 63305:2024 specifies methods and procedures for calibration of vector receivers in the frequency range 5 Hz to 10 kHz, which are applicable to vector receivers based on the two different principles. In addition, it describes an absolute method of inertial vector receiver calibration in air using optical interferometry. Usually, acoustic wave vector receivers are designed and constructed based on one of two principles. One is the sound pressure difference (gradient) principle. When measuring with this sensor, the vector receiver is rigidly fixed on a mount and supported in water. The other is the co-vibrating (inertial) principle. When measuring with this sensor, the vector receiver is suspended on a mount and supported in water in a non-rigid manner, which allows the vector receiver co-vibrate in the same direction as the sound particle in the sound wave field. Many methods have been used to calibrate vector receivers, such as free-field calibration, calibration in standing wave tube and calibration in a travelling wave tube.

PDF Catalog

PDF Pages	PDF Title
2	undefined
5	Annex ZA (normative)Normative references to international publicationswith their corresponding European publications
6	English CONTENTS
9	FOREWORD
11	INTRODUCTION
12	1 Scope 2 Normative references 3 Terms and definitions
18	4 List of symbols
20	5 Relationship of vector quantities in sound field
21	6 General procedures for calibration 6.1 General calibration requirements 6.1.1 Types of calibration 6.1.2 Acoustic field requirements
22	6.2 Acoustic standing wave tube requirements 6.2.1 Requirements for standing wave tube [8]
23	6.2.2 Requirements for immersed depth of transducers Figures Figure 1 – The structure of the calibration chamber
24	6.3 Acoustic travelling wave tube requirements 6.3.1 Requirements for driving signal 6.3.2 Requirements for the travelling wave tube 6.4 Equipment requirements 6.4.1 Calibration facility
25	6.4.2 Instrumentation
27	6.5 Positioning and alignment 6.5.1 Coordinate system 6.5.2 Reference direction 6.5.3 Transducer mounting and support
28	6.5.4 Alignment Figure 2 – Co-vibrating vector receiver suspended on a mounting ring
29	6.6 Representation of the frequency response 6.7 Frequency limitations 6.7.1 High-frequency limit 6.7.2 Low frequency limit
30	6.8 Checks for acoustic interference 7 Electrical measurements 7.1 Signal type 7.2 Electrical earthing 7.3 Measurement of transducer output voltage 7.3.1 General
31	7.3.2 Signal analysis 7.3.3 Electrical loading by measuring instrument 7.3.4 Electrical loading by extension cables 7.3.5 Electrical noise
32	7.3.6 Cross-talk 7.3.7 Integral preamplifiers 7.4 Measurement of projector drive current 7.4.1 Instrumentation 7.4.2 Signal analysis 8 Preparation of measurement 8.1 Preparation of transducers 8.1.1 Soaking
33	8.1.2 Wetting 8.2 Environmental conditions (temperature and depth) 9 Free-field calibration 9.1 Free-field reciprocity calibration 9.1.1 General
34	9.1.2 Principle Figure 3 – Measurement framework for free-field reciprocitycalibration of the vector receiver
36	9.1.3 Measurement 9.1.4 Uncertainty 9.2 Free-field calibration using optical interferometry 9.2.1 General 9.2.2 Principle
37	9.2.3 Measurement Figure 4 – Schematic diagram of free-field calibration for vector receiver using an optical interferometer
38	9.2.4 Uncertainty 9.3 Free-field calibration using a reference hydrophone 9.3.1 General 9.3.2 Principle Figure 5 – Schematic diagram of free-field comparison calibrationfor vector receiver using reference hydrophone
39	9.3.3 Measurement 9.3.4 Uncertainty 10 Calibration in standing wave tube 10.1 Calibration using reference accelerometer 10.1.1 General 10.1.2 Principle
40	Figure 6 – Schematic diagram of vertical standing wave tube calibration using reference accelerometer
41	10.1.3 Measurement 10.1.4 Uncertainty 10.2 Comparison calibration using reference hydrophone in standing wave tube 10.2.1 General 10.2.2 Principle
42	Figure 7 – Schematic diagram of vertical standing wavetube calibration using reference hydrophone
43	10.2.3 Measurement 10.2.4 Uncertainty 10.3 Horizontal standing wave tube calibration 10.3.1 General 10.3.2 Principle
44	Figure 8 – Schematic diagram of calibration principleand horizontal standing wave tube calibration
45	10.3.3 Measurement 10.3.4 Uncertainty 10.4 Calibration using optical interferometry in standing wave tube 10.4.1 General 10.4.2 Principle
46	Figure 9 – Schematic diagram of calibration for vector receiver using optical interferometer in standing wave tube
47	10.4.3 Measurement 10.4.4 Uncertainty 11 Calibration in a travelling wave tube 11.1 General
48	11.2 Principle 11.2.1 General Figure 10 – Schematic diagram of calibration for vectorreceiver in a travelling wave tube
49	11.2.2 Establishment of a unidirectional, plane progressive wave field
52	11.2.3 Sensitivity calculations 11.2.4 Uncertainty 12 Reporting of results 12.1 Sensitivity
53	12.2 Sensitivity level 12.3 Environmental considerations for calibration 12.4 Calibration uncertainties 12.5 Auxiliary metadata
54	13 Recalibration periods
55	Annex A (informative)Directional response of a vector receiver A.1 General principle A.2 Types of measurement implementation A.3 Coordinate system A.4 Measurement of vector receiver directional response
56	A.5 Calculation of angular deviation loss A.6 Uncertainty
57	Annex B (informative)Inertial vector receiver calibration using optical interferometry in air B.1 General B.2 Principle B.3 Procedure
58	Figure B.1 – Schematic diagram of calibration using opticalinterferometer in air for inertial vector receiver
59	B.4 Discussion
60	Annex C (informative)Assessment of uncertainty of vector receiver calibration C.1 General C.2 Type A evaluation of uncertainty C.3 Type B evaluation of uncertainty C.4 Reported uncertainty
61	C.5 Common sources of uncertainty
64	Bibliography

ASTM-E1979:2021 Edition

Sun, 20 Oct 2024 07:10:23 +0000

ASTM E1979-21

Active Standard: Standard Practice for Ultrasonic Extraction of Paint, Dust, Soil, and Air Samples for Subsequent Determination of Lead

ASTM E1979

Scope

1.1 This practice covers an ultrasonic extraction procedure for the extraction of lead from environmental samples of interest in lead abatement and renovation (or related) work, for analytical purposes.

1.2 Environmental matrices of concern include dry paint films, settled dusts, soils, and air particulates.

1.3 Samples subjected to ultrasonic extraction are prepared for subsequent determination of lead by laboratory analytical methods.

1.4 This practice includes, where applicable, descriptions of procedures for sample homogenization and weighing prior to ultrasonic extraction.

1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

Keywords

airborne particulate matter; dry paint film; lead; sample preparation; settled dust; soils; ultrasonic extraction;

ICS Code

ICS Number Code 17.140.99 (Other standards related to acoustics)

DOI: 10.1520/E1979-21

ASTM-E1979:2021 Edition(Redline)

Sun, 20 Oct 2024 07:10:23 +0000

ASTM E1979-21

Redline Standard: Standard Practice for Ultrasonic Extraction of Paint, Dust, Soil, and Air Samples for Subsequent Determination of Lead

ASTM E1979

Scope

1.2 Environmental matrices of concern include dry paint films, settled dusts, soils, and air particulates.

1.3 Samples subjected to ultrasonic extraction are prepared for subsequent determination of lead by laboratory analytical methods.

1.4 This practice includes, where applicable, descriptions of procedures for sample homogenization and weighing prior to ultrasonic extraction.

1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

Keywords

airborne particulate matter; dry paint film; lead; sample preparation; settled dust; soils; ultrasonic extraction;

ICS Code

ICS Number Code 17.140.99 (Other standards related to acoustics)

DOI: 10.1520/E1979-21

BS EN ISO 14163:1998

Sun, 20 Oct 2024 06:24:48 +0000

This International Standard deals with the practical selection of silencers for noise control in gaseous media. It specifies the acoustical and operational requirements which are to be agreed upon between the supplier or manufacturer and the user of a silencer. The basic principles of operation are described in this International Standard, but it is not a silencer design guide.

The silencers described are suitable, among others,

for attenuating system noise and preventing crosstalk in heating, ventilation and air-conditioning (HVAC) equipment;
for preventing or reducing sound transmission through ventilation openings from rooms with high inside sound levels;
for attenuating blow-off noise generated by high-pressure lines;
for attenuating intake and exhaust noise generated by internal combustion engines; and for attenuating intake and outlet noise from fans, compressors and turbines.

They are classified according to their types, performance characteristics and applications. Active and adaptive passive noise-control systems are not covered in detail in this International Standard.

ASTM-E1979:2004 Edition

Sun, 20 Oct 2024 06:06:29 +0000

1.2 Environmental matrices of concern include dry paint films, settled dusts, soils, and air particulates.

1.3 Samples subjected to ultrasonic extraction are prepared for subsequent determination of lead by laboratory analytical methods.

1.4 This practice includes, where applicable, descriptions of procedures for sample homogenization and weighing prior to ultrasonic extraction.

1.5 The values stated in SI units are to be regarded as the standard.

1.6 This practice does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this practice to establish appropriate safety and health practices and determine the applicability of regulatory limitation prior to use.

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology
2	Summary of Practice Significance and Use Apparatus and Materials Reagents Procedure
6	Quality Assurance/Quality Control Records Keywords
7	REFERENCES

ASTM-D7145:2022 Edition

Sun, 20 Oct 2024 05:15:06 +0000

ASTM D7145-22

Active Standard: Standard Guide for Measurement of Atmospheric Wind and Turbulence Profiles by Acoustic Means

ASTM D7145

Scope

1.1 This guide describes the application of acoustic remote sensing for measuring atmospheric wind and turbulence profiles. It includes a summary of the fundamentals of atmospheric sound detection and ranging (sodar), a description of the methodology and equipment used for sodar applications, factors to consider during site selection and equipment installation, and recommended procedures for acquiring valid and relevant data.

1.2 This guide applies principally to pulsed monostatic sodar techniques as applied to wind and turbulence measurement in the open atmosphere, although many of the definitions and principles are also applicable to bistatic configurations. This guide is not directly applicable to radio-acoustic sounding systems (RASS), or tomographic methods.

1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this guide.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Keywords

acoustic sounder; remote sensing; sodar; wind profiler; wind profiling;

ICS Code

ICS Number Code 17.140.99 (Other standards related to acoustics)

DOI: 10.1520/D7145-22