1. 噪声达标改制

    噪声达标改制

    宁静隔音噪声达标改礼服务包罗国度相干尺度的噪声达标改制、欧盟等外洋相干尺度的噪声达标改制和别的特别行业或特别产品的专项噪声达标改礼服务,这些改礼服务总是遵照相干的执法法例大概尺度限值来举行,一些罕见的尺度包罗:

    中国演习车及发起机噪声限值尺度:

    序号 尺度称号 编号 实用范畴
    1

    演习车辆容许噪声

    GB1495

    各种演习车

    2

    演习车辆噪声丈量办法

    GB1496

    各种演习车的车外、车内噪声丈量

    3

    汽车定置噪声限值

    GB16170

    都会路途容许行驶的在用汽车

    4

    汽车匀速行驶车内噪声丈量办法

    QC/T57

    M、N类车

    5

    汽车减速行驶车外噪声丈量办法

    QC/T58

    M、N类车

    6

    矿用自卸汽车驾驶室噪声丈量办法及限值

    QC/T203

    具有关闭驾驶室的矿用自卸汽车

    7

    摩托车和笨重摩托车噪声限值

    GB16169

    减速行驶噪声限值实用于新车;
    定置排气噪声限值实用于在用车

    8

    摩托车和笨重摩托车噪声丈量办法

    GB/T4569

    摩托车和笨重摩托车(赛车除外)

    9

    小型汽油机噪声限值

    GB15739

    功率为30kW以下的汽油机

    10

    中小功率柴油机噪声限值

    GB14097

    缸径160mm以下,标定功率≤1176kW的中小功率柴油机(不实用于多缸风冷柴油机)

    11

    摩托车发起机噪声限值及丈量办法

    QC/T70

    摩托车和笨重摩托车发起机

    12

    内燃机噪A声功率级的测定(准工况法)

    GB1859

    往复式内燃机

    13

    内燃机噪A声功率级的测定(准工况法及浅易法)

    GB8194

    往复式内燃机

    别的,我国对多种状况下的噪声也作出了明白的限值,这些相干的丈量目标及丈量内容包罗:

    丈量目标 丈量内容
    设置装备摆设噪声评价 划定测点的噪声级(A、C声级)、频谱、声功率级和偏向性
    工人噪声表露量 人耳地位的等效声级Leq
    车间(室内)噪声评价 车间(室内)各代表点的A、C声级或Leq、L10、L90、L50
    厂区情况噪声评价 厂区各测点处A、C声级或Leq、L10、L90、L50
    厂界噪声评价 厂界各测点处A、C声级或Leq、L10、L90、L50
    厂外情况噪声评价 厂外各种情况中的A、C声级或Leq、L10、L90、L50
    消声器声学功能评价 消声器拔出丧失
    都会交通噪声评价 交通噪声的Leq、L10、L90、L50
    脉冲噪声评价 脉冲或脉冲坚持值、峰值坚持值
    吸声质料功能丈量 法向吸声系数a0、无规入射吸声系数ar
    隔声丈量 传声丧失(隔声量)R
    设置装备摆设声功率丈量 声功率级Lw
    振动丈量 振动的位移、速率、减速度
    机器噪声源的辨别 噪声频谱、振动频谱
    新厂情况噪声预评价 设置装备摆设声功率级、建厂地区各点噪声预估值及本底噪声

      欧盟噪声的系列相干尺度:

    EN ISO 3741:1999
    Acoustics - Determination of sound power levels of noise sources using sound pressure - Precision methods for reverberation rooms (ISO3741:1999)
    24.06.2003

     

    CEN
    EN ISO 3743-1:1995
    Acoustics - Determination of sound power levels of noise sources - Engineering methods for small, movable sources in reverberant fields - Part 1 : Comparison method for hard-walled test rooms (ISO 3743-1:1994)
    08.08.1996

     

     

    CEN
    EN ISO 3743-2:1996
    Acoustics - Determination of sound power levels of noise sources using sound pressure - Engineering methods for small, movable sources in reverberant fields - Part 2 : Methods for special reverberation test rooms (ISO 3743-2:1994)
    28.11.1996

     

     

    CEN
    EN ISO 3744:1995
    Acoustics - Determination of sound power levels of noise sources using sound pressure - Engineering method in an essentially free field over a reflecting plane (ISO 3744:1994).
    14.02.1996

     

     

    CEN
    EN ISO 3746:1995
    Acoustics - Determination of sound power levels of noise sources using sound pressure - Survey method using an enveloping measurement surface over a reflecting plane (ISO 3746:1995).
    14.02.1996

     

     

    CEN
    EN ISO 3747:2000
    Acoustics - Determination of sound power levels of noise sources using sound pressure - Comparison method for use in situ (ISO 3747:2000)
    14.08.2003

     

     

    CEN
    EN ISO 4871:1996
    Acoustics - Declaration and verification of noise emission values of machinery and equipment (ISO 4871:1996)
    08.05.1997

     

     

    CEN
    EN ISO 5136:2003
    Acoustics - Determination of sound power radiated into a duct by fans and other air-moving devices - In-duct method (ISO 5136:2003)

    20.04.2004
    Warning: The presumption of conformity, conferred by standard EN 5136 of 1993 published in the Official Journal of the European Communities C 377, 31.12.1994, ends from the date of this publication.

     

     

     

     

    EN ISO 9614-1:1995
    Acoustics - Determination of sound power levels of noise sources using sound intensity - Part 1: Measurement at discrete points (ISO 9614-1:1993)
    08.08.1996

     

     

    CEN
    EN ISO 9614-3:2002
    Acoustics - Determination of sound power levels of noise sources using sound intensity - Part 3: Precision method for measurement by scanning (ISO 9614-3:2002)
    14.08.2003

     

     

    EN ISO 11200:1995
    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 (ISO 11200:1995)
    15.10.1996

     

     

    CEN
    EN ISO 11201:1995
    Acoustics - Noise emitted by machinery and equipment - Measurement of emission sound pressure levels at a work station and at other specified positions - Engineering method in an essentially free field over a reflecting plane (ISO 11201:1995)
    15.10.1996

     

     

    CEN
    EN ISO 11202:1995
    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 (ISO 11202:1995)
    15.10.1996

     

     

    CEN
    EN ISO 11203:1995
    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 (ISO 11203:1995)
    15.10.1996

     

     

    CEN
    EN ISO 11204:1995
    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 (ISO 11204:1995)
    15.10.1996

     

     

    CEN
    EN ISO 11546-1:1995
    Acoustics - Determination of sound insulation performances of enclosures - Part 1: Measurements under laboratory conditions (for declaration purposes) (ISO 11546-1:1995)
    15.10.1996

     

     

    CEN
    EN ISO 11546-2:1995
    Acoustics - Determination of sound insulation performances of enclosures - Part 2: Measurements in situ for acceptance and verification purposes (ISO 11546-2:1995)
    15.10.1996

     

     

    EN ISO 11688-1:1998
    Acoustics - Recommended practice for the design of low-noise machinery and equipment - Part 1: Planning (ISO.TR 11688-1:1995)
    15.10.1998

     

     

    CEN
    EN ISO 11691:1995
    Acoustics - Measurement of insertion loss of ducted silencers without flow - Laboratory survey method (ISO 11691:1995)
    14.02.1996

     

     

    CEN
    EN ISO 11806:1997
    Agricultural and forestry machinery - Portable hand-held combustion engine driven brush cutters and grass trimmers - Safety (ISO 11806:1997)
    23.10.1997

     

     

    CEN
    EN ISO 11957:1996
    Acoustics - Determination of sound insulation performance of cabins - Laboratory and in situ measurements (ISO 11957:1996)
    08.05.1997

     

     

    CEN
    EN ISO 12001:1996
    Acoustics - Noise emitted by machinery and equipment - Rules for the drafting and presentation of a noise test code (ISO 12001:1996)
    08.05.1997

     

     

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