17.140.20 机器和设备的噪声 标准查询与下载
共找到 659 条与 机器和设备的噪声 相关的标准，共 44 页
1.1 This practice describes procedures for the measurement, processing, and interpretation of the acoustic emission (AE) response associated with selected stages of the resistance spot-welding process. 1.2 This practice also provides recommendations for feedback control by utilizing the measured AE response signals during the spot-welding process. 1.3 Units—The values stated in either SI units or inchpound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard. 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.
Standard Practice for Acoustic Emission Monitoring During Resistance Spot-Welding
- ICS
- 17.140.20
- CCS
- 发布
- 2022-12-01
- 实施
1.1 This test method covers the measurement of the insertion loss of pipe lagging systems under laboratory conditions. 1.2 A procedure for accrediting a laboratory for purposes of this test method is given in Annex A1. 1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are provided for information only and are not considered standard. 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.
Standard Test Method for Laboratory Measurement of the Insertion Loss of Pipe Lagging Systems
- ICS
- 17.140.20
- CCS
- 发布
- 2022-11-01
- 实施
This document specifies a method where a vibrating component (a source of structure-borne sound or vibration) is attached to a passive structure (or receiver) and is the cause of vibration in, or structure-borne sound radiation from, the assembly. Examples are pumps installed in ships, servo motors in vehicles or machines and plant in buildings. Almost any vibrating component can be considered as a source in this context. Due to the need to measure vibration at all contact degrees of freedom (DOFs) (connections between the source and receiver), this document can only be applied to assemblies for which such measurement is possible. This document is applicable only to assemblies whose frequency response functions (FRFs) are linear and time invariant. The source can be installed into a real assembly or attached to a specially designed test stand (as described in 5.2). The standard method has been validated for stationary signals such that the results can be presented in the frequency domain. However, the method is not restricted to stationary signals: with appropriate data processing, it is also applicable to time-varying signals such as transients and shocks (provided linearity and time invariance of the FRFs are preserved). This document provides a method for measurement and presentation of blocked forces, together with guidelines for minimizing uncertainty. It provides a method evaluating the quality of the results through an on-board validation procedure but does not comment on the acceptability or otherwise of the results.
Acoustics - Characterization of sources of structure-borne sound and vibration - Indirect measurement of blocked forces (ISO 20270:2019)
- ICS
- 17.140.20
- CCS
- 发布
- 2022-10-26
- 实施
- 2023-01-31
1.1 This test method covers the reverberation room measurement of the noise reduction of sound-isolating enclosures. 1.2 The noise isolation class may be determined from the noise reduction measured in accordance with this test method. 1.3 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. 1.4 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.
Standard Test Method for Laboratory Measurement of Noise Reduction of Sound-Isolating Enclosures
- ICS
- 17.140.20
- CCS
- 发布
- 2022-10-01
- 实施
- 2022-10-1
1.1 This test method covers a procedure for acoustic emission (AE) testing of digger derricks. 1.1.1 Equipment Covered—This test method applies to special multipurpose vehicle-mounted machines, commonly known as digger derricks. These machines are primarily designed to dig holes, set poles, and position materials and apparatus. 1.1.1.1 Insulated and non-insulated type digger derricks may be evaluated with this test method. 1.1.1.2 Digger derricks, if so equipped to position personnel or equipment, or both, may also be evaluated with this test method in conjunction with Test Method F914. 1.1.2 Equipment Not Covered—Excluded from this test method are general-purpose cranes designed only for lifting service and machines primarily designed only for digging holes. 1.2 The AE test method is used to detect and area-locate emission sources. Verification of emission sources may require the use of other nondestructive test (NDT) methods, such as radiography, ultrasonic, magnetic particle, liquid penetrant, and visual inspection. 1.3 Warning—This test method requires that external loads be applied to the superstructure of the vehicle under test. During the test, caution must be taken to safeguard personnel and equipment against unexpected failure or instability of the vehicle or components. 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.
Standard Test Method for Acoustic Emission Testing of Insulated and Non-Insulated Digger Derricks
- ICS
- 17.140.20
- CCS
- 发布
- 2022-09-01
- 实施
本文件规定了变电站设备（以下简称“设备”）声成像测试原理、测试条件、检测仪器、测试方法、检测数据分析方法、测试报告等要求。 本文件适用于采用声成像技术对设备的噪声、异响或其他声音（如电晕、气体泄漏等产生的声音）进行的检测。 对其他设备开展的声成像测试可参照执行。
Technical Guidelines for Acoustic Imaging Testing of Substation Equipment
- ICS
- 17.140.20
- CCS
- D4420
- 发布
- 2022-06-23
- 实施
- 2022-10-01
Specifies an engineering method for determining the sound power levels of large multisource industrial plants relevant to the evaluation of sound pressure levels in the environment. The method is limited to large industrial plants with multiple noise sources having their main dimensions in the horizontal plane, and which radiate sound substantially uniformly in all horizontal directions. Unweighted sound pressure levels are measured in octave bands. The results obtained are expressed both in octave-band and, if required, in A-weighted sound power levels.
Acoustics — Determination of sound power levels of multisource industrial plants for evaluation of sound pressure levels in the environment — Engineering method
- ICS
- 17.140.20
- CCS
- 发布
- 2022-05-12
- 实施
1.1 This test method covers the laboratory measurement of the acoustical effectiveness of treatments installed on ship bulkheads, decks, and side shells. Measurements are focused on assessing changes in transmission loss, radiation efficiency, and acceptance that occur when treatments are applied. Measurements of changes to absorption and damping are addressed in Appendix X1 and Appendix X2, respectively. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 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. 1.4 Any material that is to be installed on a marine division must meet appropriate fire, combustibility, and other applicable SOLAS, USCG, IMO, Navy, or other required non-acoustical standards and specifications. See Appendix X3 for additional information. 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.
Standard Test Method for Laboratory Measurement of Acoustical Effectiveness of Ship Noise Treatments Laboratory Measurement of Acoustical Effectiveness for Marine Bulkhead and Deck Treatments
- ICS
- 17.140.20
- CCS
- 发布
- 2022-04-01
- 实施
IEC 60704-2-18:2022 applies to single-unit electric water heaters for household and similar use intended for placing on the floor against a wall, for building-in or placing under a counter, a kitchen worktop or under a sink, for wall-mounting or on a counter. This document does not apply to: – combustion water heaters; – water kettles; – heat pump water heaters; – conventional electric storage water heaters as defined in IEC 60335-2-21:2012, Clause 1; – instantaneous electric water heaters without any noise-producing components such as motors and pumps. This document is intended to be used in conjunction with IEC 60704‑1:2021.
Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 2-18: Particular requirements for electric water heaters
- ICS
- 17.140.20
- CCS
- 发布
- 2022-03-04
- 实施
- 2022-06-03 (7)
ISO/TS 7849-1:2009 gives basic requirements for reproducible methods for the determination of an upper limit for the A-weighted sound power level of the noise emitted by machinery or equipment by using surface vibration measurements. The method is only applicable to noise which is emitted by vibrating surfaces of solid structures and not to noise generated aerodynamically. This vibration measurement method is especially applicable in cases where accurate direct airborne noise measurements, e.g. as specified in ISO 3746, ISO 3747, and ISO 9614 (all parts), are not possible because of high background noise or other parasitic environmental interferences; or if a distinction is required between the total radiated sound power and its structure vibration generated component. The methods described in ISO/TS 7849-1:2009 apply mainly to processes that are stationary with respect to time.
Acoustics - Determination of airborne sound power levels emitted by machinery using vibration measurement - Part 1: Survey method using a fixed radiation factor (ISO/TS 7849-1:2009)
- ICS
- 17.140.20
- CCS
- 发布
- 2022-02-16
- 实施
- 2022-05-31
ISO/TS 7849-2:2009 gives basic requirements for a reproducible method for the determination of the sound power level of the noise emitted by machinery or equipment by using surface vibration measurements, together with the knowledge of the machinery specific sound radiation factor in the frequency bands. The method is only applicable to noise which is emitted by vibrating surfaces of solid structures and not to noise generated aerodynamically. This vibration measurement method is especially applicable in cases where accurate direct airborne noise measurements, e.g. as specified in ISO 3746, ISO 3747, and ISO 9614 (all parts), are not possible because of high background noise or other parasitic environmental interferences; or, if a distinction is required between the total radiated sound power and its structure vibration generated component. The methods described in ISO/TS 7849-2:2009 apply mainly to processes that are stationary with respect to time. Recommendations on the selection of frequency bands are given in an annex.
Acoustics - Determination of airborne sound power levels emitted by machinery using vibration measurement - Part 2: Engineering method including determination of the adequate radiation factor (ISO/TS 7849-2:2009)
- ICS
- 17.140.20
- CCS
- 发布
- 2022-02-16
- 实施
- 2022-05-31
Acoustics — Noise emitted by machinery and equipment —Determination of emission sound pressure levels at a work station and at other specified positions in an essentially free field over a reflecting
- ICS
- 17.140.20
- CCS
- 发布
- 2021-12-29
- 实施
Acoustics — Noise emitted by machinery and equipment —Determination of emission sound pressure levels at a work station and at other specified positions from the sound power level
- ICS
- 17.140.20
- CCS
- 发布
- 2021-12-29
- 实施
Acoustics — Noise emitted by machinery and equipment —Determination of emission sound pressure levels at a work station and at other specified positions applying approximate environmental corrections
- ICS
- 17.140.20
- CCS
- 发布
- 2021-12-29
- 实施
Acoustics — Noise emitted by machinery and equipment —Guidelines for the use of basic standards for the determination of emission sound pressure levels at a work station and at other specified positio
- ICS
- 17.140.20
- CCS
- 发布
- 2021-12-29
- 实施
Acoustics — Noise emitted by machinery and equipment —Guidelines for the use of basic standards for the determination of emission sound pressure levels at a work station and at other specified positio
- ICS
- 17.140.20
- CCS
- 发布
- 2021-12-29
- 实施
Acoustics — Noise emitted by machinery and equipment —Determination of emission sound pressure levels at a work station and at other specified positions in an essentially free field over a reflecting
- ICS
- 17.140.20
- CCS
- 发布
- 2021-12-29
- 实施
Acoustics — Noise emitted by machinery and equipment —Determination of emission sound pressure levels at a work station and at other specified positions applying approximate environmental corrections
- ICS
- 17.140.20
- CCS
- 发布
- 2021-12-29
- 实施
Acoustics — Noise emitted by machinery and equipment —Determination of emission sound pressure levels at a work station and at other specified positions from the sound power level
- ICS
- 17.140.20
- CCS
- 发布
- 2021-12-29
- 实施
Household and similar electrical appliances. Test code for the determination of airborne acoustical noise. General requirements
- ICS
- 17.140.20
- CCS
- Y60
- 发布
- 2021-11-05
- 实施
- 2021-11-05
