063 标准查询与下载

DS/ISO 6403:1992 液压传动.控制流量及压力的阀. 试验方法

This International Standard specifies methods for testing hydraulic valves which are used for the control of flow or pressure in a circuit in order to determine their steady-state and dynamic performance. Requirements for test installations and procedures, measurements and presentation of results are specified. This Inter-national Standard does not establish limits of performance since the suitability of the valve for its intended purpose should be agreed between the manufacturer and the user. Accuracy of measu rement is divided into three classes (A, B and C) which are explained in annex A. Guidance as to the use of practical units for the presentation of results is given in annex B. Proportional control valves are not dealt with in this Inter-national Standard. Electrohydraulic servovalves are dealt with in ISO 6404.

Hydraulic fluid power. Valves controlling flow and pressure. Test methods

DS/ISO 7182:1991 声学. 在操作者位置上测量链锯发出的气载的噪音

This International Standard specifies a method for measuring the A-weighted and octave band sound pressure levels, at the operator's position, of noise emitted by portable, hand-held, combustion engine chain saws for use primarily in forestry. The operating conditions during measurement simulate normal operating conditions in the forest. NOTE — This International Standard is based on the general guidelines of ISO 6081; however, to simulate a normal operating situation of a chain saw an absorbing ground is specified instead of a reflecting plane.

Acoustics. Measurement at the operator's position of airborne noise emitted by chain saws

DS/ISO 6081:1991 声学. 机械和设备发出的噪音. 制定在操作者或在场者位置上噪音测量的工程技术级检验规范导则

This International Standard lays down the conditions of measurement of noise at the operator's position(s) and at other specified locations in the vicinity of different types of machinery and equipment used indoors and outdoors. It also applies to operator positions which are partially or totally enclosed by the machine or are within a cab which may be an integral part of the machine or remote from the machine. This International Standard is applicable to all sources, both moving and stationary, with the exception of transportation vehicles.

Acoustics. Noise emitted by machinery and equipment. Guidelines for the preparation of test codes of engineering grade requiring noise measurements at the operator's or bystander's position

DS/ISO 3747:1991 声学.噪声源音响功率级的测定.利用参考音响源的测量方法

This International Standard specifies a survey method for measuring the sound pressure levels produced at specified measurement points by the noise source under test and by a reference sound source. The sound power level of the source under test is calculated from the measured values of the sound pressure level by using environmental corrections. These environmental corrections are calculated from the differences between the values ob-tained with a reference sound source and those given by its calibration. Different microphone arrays and different positions for the reference sound source are given for different acoustical situations, depending on the size of the source under test as well as the size, number and orientation of the reflecting planes which are situated in proximity to the source under test. The positions of the reference sound source also depend on whether it is possible to place the reference sound source on the uppermost outer surface of the source under test.

Acoustics. Determination of sound power levels of noise sources. Survey method using a reference sound source

DS/ISO 3742:1991 声学.噪声源声功率级的测定.在混响室内不连续频率及窄频带源用精密方法

This International Standard specifies the special requirements that are necessary for accurate determinations of the sound power when discrete frequencies or narrow bands of noise are radiated by a source.

Acoustics. Determination of sound power levels of noise sources. Precision methods for discrete-frequency and narrow-band sources in reverberation rooms

DS/ISO 3741:1991 声学噪声源声功率级的测定在混响室内宽频带源用精密方法

This International Standard specifies a direct method and a comparison method for determining the sound power level produced by a source. It specifies test room requirements, source location and operating conditions, instrumentation and techniques for obtaining an estimate of mean-square sound pressure from which the sound power level of the source in octave or one-third octave bands is calculated.

Acoustics. Determination of sound power levels of noise sources. Precision methods for broad-band sources in reverberation rooms

DS/ISO 1996-3:1991 声学.环境噪声的测量和说明.第1部分:用于噪声限定值

This part of ISO 1996 lays down guidelines for the specification of noise limits and describes methods for the acquisition of data that enable specific noise situations to be checked for compliance with specified noise limits.

Acoustics. Description and measurement of environmental noise. Part 3: Application to noise limits

DS/ISO 1680-2:1991 声学. 测量旋转式电动机械发出的空中传播的噪音试验规范. 第 2部分: 测量法

General This part of ISO 1680 defines a measurement method for rotating electrical machines operating under steady noise conditions, the result of which can be expressed in sound power levels so that all machines tested using this code can be directly compared. This part of ISO 1680 applies to the measurement of airborne noise from rotating electrical machines, such as motors and generators (d.c. and a.c. machines) of all sizes, when fitted with all auxiliaries which are necessary to achieve the agreed operating conditions (see clause 6). This part of ISO 1680 requires the sound pressure levels to be measured on a rectangular parallelepiped surface enveloping the machines from which the A-weighted sound power level produced by the machine is calculated. It outlines the procedures which shall be used to evaluate the test environment and specifies the characteristics of suitable measuring instruments. This part of ISO 1680 applies to measurements carried out in environmental conditions that meet the criteria given in clause 4 and annex A (environmental correction K < 7 Db, correction for background noise < 3 Db).

Acoustics. Test code for the measurement of airborne noise emitted by rotating electrical machinery. Part 2: Survey method

DS/ISO 1996-2:1991 声学.环境噪音的等级和测量.第2部分:与应用场所有关数据的获取

This part of ISO 1996 describes methods for the acquisition of data which provide descriptors that enable a) a description of the environmental noise in a specified area of land to be made in a uniform way; b) the compatibility of any land use activity or projected activity to be assessed with respect to existing or predicted noise.

Acoustics. Description and measurement of environmental noise. Part 2: Acquisition of data pertinent to land use

DS/ISO 9295:1990 声学.测量由计算机和办公装置发出的高频噪声

This International Standard specifies four methods for the determination of the sound power levels of high-frequency noise emitted by computer and business equipment in the frequency range covered by the octave band centred at 16 kHz. They are complementary to the methods described in ISO 7779. The first three methods are based on the reverberation room technique described in clause 5 of ISO 7779 : 1988. The fourth method makes use of a free field over a reflecting plane as described in clause 6 of ISO 7779 : 1988. The test conditions which prescribe the installation and opera-tion of the equipment are those specified in ISO 7779. While the four methods described in this International Standard are particularly suitable for computer and business equipment, they may also be applied to other types of equipment. This International Standard specifies methods for the determination of sound power levels in the frequency range covered by the octave band centred at 16 kHz which includes frequencies be-tween 11,2 kHz and 22,4 kHz. NOTE — The sound power level in the 16 kHz octave band determined according to this International Standard typically is subject to a standard deviation of approximately 3 dB. A method for the measurement of high-frequency hoise is in conformance with this International Standard if it satisfies all the mandatory requirements of one of the four methods described herein and if the information recorded and reported is that specified in Clauses 8, 9 and 10, respectively.

Measurement of high frequency noise emitted by computer and business equipment

DS/INSTA 121:1990 声学．利用声强测量．扫描法原地测定噪声源声功率级

This standard specifies a method for the determination of sound power levels of a noise source by using sound intensity measurements under its normal operating conditions and in situ. The sound intensity distribution is determined on a surface enclosing the noise source under test. The measurement procedure is based on a scanning technique, i.e. continuously moving the intensity probe across the measurement surface after a predefined pattern while the in-strument is integrating. Measurements give the total radiated airborne sound power from a noise source and an indication of the relative strength of the noise radiated from various parts of the noise source. Sound power levels may be determined in one-third octave or octave bands and A-weighted sound power levels may be cal-culated for the purpose of noise control, rating and assess-ment of compliance with the purchase specification. The method allows achievement of an accuracy compatible with engineering grade as defined in 7.6. The standard gives requirements for the acoustic environ-ment, extraneous noise, measurement surface and scanning technique for the intensity measurement. The procedure for calculating sound power from sound intensity is given. The noise of the source under test has to be steady during the total measurement period so that proper time and spatial in-tegration is obtained while scanning over the measurement surface. The measurement of fluctuating and other nonsteady noise sources is thus not covered by the method.

Acoustics. Determination of sound power levels of noise sources using sound intensity measurements. Scanning method for use in situ

DS/ISO 6190:1990 声学.测量气体涡轮机安装的声压级.检查方法

This International Standard specifies a survey method for measuring sound pressure levels of a complete gas turbine installation at specified locations around the installation for the purpose of evatuating environmental noise. It also outlines descriptions of factors inftuencing sound pressure levels around such an installation, which should be taken into consideration when specifications are being drawn up. NOTE — It is not the purpose of this International Standard to give recommendations for the method of catculation of the sound power level of a complete installation, The determination of sound power levels for individual noise sources will be dealt with in a future Inter-national Standard.

Acoustics. Measurement of sound pressure levels of gas turbine installations for evaluating environmental noise. Survey method

DS/ISO 7779:1990 声学. 计算机和办公设备发出的气载噪声的测量

This International Standard specifies procedures for measuring and reporting the noise emitted by computer and business equipment. It is based on the measurement procedures specified in ISO 3740, ISO 3741, ISO 3742, ISO 3744 and ISO 3745. The basic emission quantity is the A-weighted sound power level which may be used for comparing equipment of the same type, but from different manufacturers, or for comparing different equipment. The A-weighted sound power level is supplemented by the A-weighted sound pressure level measured at the operator position(s) or the bystander positions. This sound pressure level is not a measurement of total occupational noise exposure of workers (noise immission). Two methods for determining the sound power levels are specified in this International Standard in order to avoid undue restriction on existing facilities and experience. The first method is based on reverberant room measurements (see ISO 3741 and ISO 3742); the second is based on measurements in an essentially free field over a reflecting plane (see ISO 3744 and ISO 3745). Either method may be used in accordance with this International Standard. They are comparable in accuracy and yield the same A-weighted sound power level within the tolerance range of the methods specified in this International Standard.

Acoustics. Measurement of airborne noise emitted by computer and business equipment

DS/ISO 7917:1990 声学.传播在操作者位置上的测量

This International Standard specifies a method for measuring the A-weighted and octave-band sound pressure levels, at the operator's position, of noise emitted by portable, hand-held brush saws for use primarily in forestry which are powered by internal combustion engines. The operating conditions during measurement simulate normal operating conditions in the forest. NOTE — This International Standard is based on the general guidelines of ISO 6081 1); however, to simulate a normal operating situation of a brush saw, an absorbing ground is specified instead of a reflecting plane.

Acoustics. Measurement at the operator's position of airborne noise emitted by brush saws

DS/ISO 6393:1986 声学. 土方机械发出的气载噪音测量. 符合室外噪音限制的测定方法. 静态试验条件

This International Standard describes a method for determining the exterior noise emitted by earth-moving machinery in terms of the A-weighted sound power level while the machine is in a stationary test condition. At six positions on a hemispherical surface, the equivalent continuous A-weighted sound pressure levels are measured. The A-weighted sound power level of the machinery is calculated from the measured values.

Acoustics. Measurement of airborne noise emitted by earth-moving machinery. Method for determining compliance with limits for exterior noise. Stationary test condition

DS 797:1986 声学．听力保护的职业噪声级评定

Denne standard indeholder en tabel (udtrykt i risikoprocenter) over den forringelse af h?relsen, der ned-s?tter taleforst?eligheden, som funktion af st?jniveauet p? arbejdspladsen og det antal ?r, de st?jekspo-nerede personer har v?ret udsat for st?jen. Tabellen indeholder risikoprocenter for den forringelse af h?-relsen, der skyldes b?de alder og st?jp?virkning samt for den forringelse af h?relsen, som er for?rsaget alene af st?jp?virkning. Ud over neds?ttelse af taleforst?eligheden kan st?jskader bevirke tinnitus samt nedsat evne til opfattelse af andre former for lyd, fx musik. Ved udarbejdelse af tabellen er der gjort f?lgende valg blandt de i ISO/ DIS 1999.2 anf?rte muligheder: a) Bestemmelse af st?jskade, der neds?tter taleforst?eligheden, skal ske p? basis af middelv?rdien af h?ret?rskelniveauerne HTL ved frekvenserne 0,5; 1; 2; 3 og 4 kHz. b) Der regnes med, at en st?jskade neds?tter taleforst?eligheden, n?r middelv?rdien af h?ret?rskel-niveauerne HTL er st?rre end 20 dB. c) Beregningerne er baseret p? anvendelse af den i ISO/DIS 1999.2, annex B, anf?rte database (se det-te dokument for n?rmere oplysning); der er kun anvendt data for m?nd, da der foreligger st?rst risi-ko for st?jskade for denne gruppe. Note — Denne database er ?u-screenet?, dvs. den indeholder data for b?de st?jbelastede og ikke-st?jbelastede personer. Det er forudsat, at st?jeksponeringen starter ved 20-?rs alderen. Der findes unders?gelser, som viser, at impulsst?j er mere skadelig end lige s? kraftig ikke-impulsiv st?j. Note — Det danske arbejdstilsyn har i 1984 pr?ciseret sin hidtidige praksis s?ledes, at der l?gges 5 dB til den m?lte v?rdi af det energi?kvivalente, A-v?gtede lydtrykniveau for st?j med impulser, n?r impulsernes spidsv?rdier (m?lt i stilling ?peak? og med A-v?gtning) overstiger 115 dB og op-tr?der mere end 1 gang i minuttet. Middelv?rdien af t?rskelv?rdi?ndring ved frekvenserne 0,5; 1; 2; 3 og 4 kHz kan ikke benyttes som m?l for h?rehandicap. Fx vil en st?jskade ofte neds?tte taleforst?eligheden mere end en aldersbetinget h?reneds?ttelse med samme middelv?rdi. Det anbefales, at standarden kun benyttes, hvis spidsv?rdien af lydtrykniveauet, re 20μPa, er mindre end 140 dB. ISO/DIS 1999.2 og denne standard er baseret p? statistiske data og kan ikke benyttes til at bestemme ?ndringer i t?rskelv?rdier eller risikoen for st?jskader for enkeltpersoner.

Acoustics. Assessment of occuppational noise exposure for hearing conservation purposes

DS/ISO 6394:1986 声学. 土方机械发出的气载的噪音测量. 操作者位置. 静态试验条件

This International Standard describes a method for determining the noise emitted by earth-moving machinery at the operator's position in terms of the equivalent continuous A-weighted sound pressure level while the machine is in a stationary test condition.

Acoustics. Measurement of airborne noise emitted by earth-moving machinery. Operator's position. Stationary test condition

DS/ISO 4871:1985 声学.机器和设备的噪音标记

This International Standard — prescribes a manner in which the noise emission of machinery and equipment shall be expressed for labelling purposes; — prescribes the minimum information to be given in a label attached to the machine or in commercial or technical documents supplied to consumers by the manufacturer. This International Standard applies to machinery and equipment which is essentially stationary in nature. Traffic vehicles are excluded.It applies only to families of machines or equipment for which measurement test codes for the determination of the sound power level exist.

Acoustics. Noise labelling of machinery and equipment

DS/ISO 5135:1985 声学.通过混响室中测量气路终端设备、高/低速度/压力装置、阻尼器和阀门的噪音确定音响功率级

This International Standard establishes general rules for the acoustic testing of air terminal devices, high/low velocity/ pressure assemblies and dampers and valves used in air dif-fusion and air distribution systems as defined in ISO 3258 in order to determine sound power levels as defined in ISO 3740. This International Standard is applicable to equipment operating under steady state conditions.

Acoustics. Determination of sound power levels of noise from air terminal devices, high/low velocity/pressure assemblies, dampers and valves by measurement in a reverberation room

DS/ISO 5130:1984 声学. 稳态道路车辆发出的噪音测量. 检测方法

This International Standard specifies a survey method for measuring the noise produced by a stationary road vehicle at a readily obtainable site having specific characteristics. The method is intended to check vehicles in use, and also to determine variations in the noise emitted by different parts of the vehicle under test, which can result from — the wear, maladjustement or modification of particular components, when the defect does not appear by visual inspection; — the partial or complete removal of devices reducing the emission of certain noises. These variations shall be determined by comparing the measurements with reference measurements made under similar conditions, for example during the type approval of the vehicle. This International Standard does not apply to agricultural and forestry tractors for which the measurement of noise emitted when stationary will form the subject of ISO 7217.

Acoustics. Measurement of noise emitted by stationary road vehicles. Survey method