GB/T 17421.5-2015
Test code for machine tools.Part 5:Determination of the noise emission (English Version)

Standard No.

GB/T 17421.5-2015

Language

Chinese, Available in English version

Release Date

2015

Published By

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

Latest

GB/T 17421.5-2015

Scope

Overview This part of GB/T 17421 specifies the noise test methods for machine tools and related auxiliary devices fixed on the foundation in the workplace. The purpose of the test is to measure the noise emission data of the machine tool. The measured data can be used for the declaration and verification of machine tool emission noise specified in ISO 4871. Under the specified environmental conditions, installation and working conditions, it can also be used for performance comparison of the same type of machine tool or equipment in different units. The noise emitted by auxiliary devices connected to several machine tools and operated together shall be considered as background noise. "Auxiliary device" in this part refers to hydraulic power box, chip removal device, coolant oil mist separation device, heat exchange device, cooling device, etc. This section gives a general description of the installation, operation, working position of the machine tool under test and the measurement position of the microphone at other specified positions. The specific noise inspection can be stipulated in the relevant inspection standards of various types of machine tools. Chapter 11 of this part specifies the noise sound pressure level method for measuring the working position and other specified positions near the machine tool, which adopts the method specified in ISO 11202 and ISO 11204. Chapter 12 of this part specifies the sound pressure level measured on an imaginary envelope machine tool measurement surface, and the method for calculating the sound power level of the machine tool is obtained. This method adopts the method specified in ISO 3744 and ISO 3746. This section does not involve the use of sound intensity method (see GB/T 16404 and GB/T 16404.2) to determine the sound power level. Noise types and noise sources The method specified in this section is suitable for the measurement of various noises emitted by machine tools. This section applies to various types and specifications of machine tools, including equipment, components and assemblies. Note: According to this section, it may not be possible to measure super high or long machine tools, such as automatic lines. Test environment The test environment in this section is generally: a room with one or more reflective planes, and meets the requirements specified in 11.4.2 and 12.3.2 of this section. Accuracy level Test the noise sound pressure level of a specified location and the sound power level of a certain machine tool according to the method specified in this part. The value may be different from the real value.

GB/T 17421.5-2015 Referenced Document

• GB/T 14574-2000 Acoustics-Declaration and verification of noise emission values of machinery and equipment
• GB/T 17248.1-2000 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 positions
• GB/T 17248.3-1999 Acoustics--Noise emitted by machinery and equipment--Measurement of emission sound pressure levels at a work station and at other specified positions--Survey method in situ
• GB/T 17248.5-1999 Acoustics--Noise emitted by machinery and equipment--Measurement of emission sound pressure levels at a work station and at other specified positions--Method requiring environmental corrections
• GB/T 3767-1996 Acoustics--Determination of sound power levels of noise sources using sound pressure--Engineering method in an essentially free field over a reflecting plane
• GB/T 3768-1996 Acoustics--Determination of sound power levels of noise sources using sound pressure--Survey method using an enveloping measurement surface over a reflecting plane
• GB/T 4129-2003 Acoustics-Requirements for the performance and calibration of reference sound sources used for the determination of sound power levels
• IEC 60651:1979 Sound level meters
• IEC 60804:1985 Integrating-averaging sound level meters
• IEC 60942:1997 Electroacoustics - Sound calibrators
• ISO 354:1985 Acoustics; Measurement of sound absorption in a reverberation room
• ISO 7960:1995 Airborne noise emitted by machine tools - Operating conditions for woodworking machines
• ISO 8525 Airborne noise emitted by machine tools - Operating conditions for metal-cutting machines

GB/T 17421.5-2015 history

• 2015 GB/T 17421.5-2015 Test code for machine tools.Part 5:Determination of the noise emission

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