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  • ISO 389-7-2005 - 中外标准 - - 2005/11 - 现行
    ISO 389-7:2005 specifies a reference threshold of hearing for the calibration of audiometric equipment used under the following conditions. The sound field in the absence of the listener consists of either a free progressive plane wave (free field) or a diffuse sound field, as specified in ISO 8253-2. In the case of a free field, the source of sound is directly in front of the listener (frontal incidence). The sound signals are pure (sinusoidal) tones in the case of free-field conditions and one-third octave bands of (white or pink) noise in the case of diffuse-field conditions. The sound pressure level is measured in the absence of the listener at the position where the centre of the listener''s head would be. Listening is binaural. The data in ISO 389-7:2005 are given in numerical form for the preferred frequencies in the one-third octave series from 20 Hz to 16 000 Hz inclusive in accordance with ISO 266 and, in addition, for some intermediate audiometric frequencies up to 18 000 Hz. The threshold data differ from the audiometric zero specified in ISO 389-1, ISO 389-2, ISO/TR 389-5 and ISO 389-8, since the latter refer to monaural listening through earphones with sound pressure levels referred to specified couplers and ear simulators. Direct comparison between the data in the parts of ISO 389 mentioned above and that in ISO 389-7:2005 is therefore not appropriate.
    声学听力测定听觉阈校正条件定义扩散场电气工程自由场调查听度阈测量参考状态参考级参考测量方法要求声场声压级AcousticsAudiometryAuditory thresholdCalibrationConditionsDefinitionsDiffuse fieldsElectrical engineeringFree fieldsInvestigationsMeasurement of threshold of audibilityReference conditionsReference levelsReference measuring methodsRequirementsSound fieldsSound pressure level
  • ISO 24450-2005 - 中外标准 - - 2005/11 - 现行
    ISO 24450:2005 specifies requirements and dimensions for an internationally acceptable series of conical flasks and of flat-bottom and round-bottom flasks with wide neck for general laboratory purpose. The flasks are provided for direct use in laboratory, fitting together with other equipment for general laboratory purposes, and for further work up to other products. For narrow-necked boiling flasks, ISO 1773 applies. For boiling flasks with conical ground joints, see ISO 4797.
    硼硅酸盐玻璃锥形烧瓶设计名称与符号尺寸额定系列烧瓶(实验室)平底烧瓶玻璃玻璃烧瓶实验室玻璃器皿实验室器皿作标记材料公称容量圆底烧瓶规范(验收)体积宽的Borosilicate glassConical flasksDesignDesignationsDimensionsDuty seriesFlasksFlasks (laboratory)Flat bottom flasksGlassGlass flasksLaboratory glasswareLaboratory wareMarkingMaterialsNominal capacityRound bottom flasksSpecification (approval)VolumeWide
  • ISO 4788-2005 - 中外标准 - - 2005/5 - 现行
    ISO 4788:2005 specifies dimensions, material and constructional and metrological requirements of graduated measuring cylinders of tall form (Type 1a and Type 1b) and of squat form (Type 2). All types are suitable for general laboratory use. The specifications in ISO 4788:2005 are in conformity with the principles of design and construction of volumetric glassware given in ISO 384.
    作标记公称容量体积调节仪表刻度塞子实验室玻璃器皿划刻度量器尺寸公差锥形连接容积测量标度实验室器皿规范(验收)刻度量筒尺寸精密度量筒玻璃玻璃器皿材料容量AdjustmentCapacityDimensional tolerancesDimensionsGlassGlasswareGraduated measuring cylindersGraduationsInstrument scalesLaboratory glasswareLaboratory wareMarkingMaterialsMeasures (containers)Measuring cylindersNominal capacityPrecisionScalesSpecification (approval)SpecificationsStoppersTapered jointsVolumeVolume measurement
  • ISO 8041-2005 - 中外标准 - - 2005/4 - 现行
    ISO 8041:2005 specifies the performance specifications and tolerance limits for instruments designed to measure vibration values, for the purpose of assessing human response to vibration. It includes requirements for pattern evaluation, periodic verification and in-situ checks, and the specification of vibration calibrators for in-situ checks. Vibration instruments specified in ISO 8041:2005 can be single instruments, combinations of instrumentation or computer-based acquisition and analysis systems. Three levels of performance testing are defined in ISO 8041:2005: pattern evaluation, i.e. a full test of the instrument against the specifications defined in this International Standard; periodic verification, i.e. an intermediate set of tests designed to ensure that an instrument remains within the required performance specification, and in-situ checks, i.e. a minimum level of testing required to indicate that an instrument is likely to be functioning within the required performance specification.
    定型试验测量声学效应电磁特性人体检验环境条件定义干扰抑制作标记验证测量设备测量仪器全身振动震动计特点试验规范(验收)振动影响(对人体)工作地点试验设备振动频率响应加速度频率干扰辐射振动试验技术数据单AccelerationAcousticsAmount of inspectionCalibrationDefinitionsDetectors (circuits)Device configurationEffectsElectromagnetic propertiesEntrancesEnvironmental conditionEnvironmental conditionsEnvironmental effectsError limitsEvaluationsExitsFeaturesFiltersFrequenciesFrequency analysisFrequency rangesFrequency responseFrequency weightingHuman bodyImpactImpact testsIndicationsInitial verificationInspectionInstructions for useInterference rejectionsInterfering emissionsIntermediate testMaintenanceMarkingMeasured valueMeasurementMeasuring equipmentMeasuring instrumentsMeasuring rangesMoistureOccupational safetyOperating instructionsOperating stationsOperational instructionsOperational locationOperative rangesOverdrivingPeoplePropertiesSensitivitySpecification (approval)Technical data sheetsTemperatureTest equipmentTestingTolerances (measurement)Type testingUserVerificationVibrationVibration effects (human body)Vibration engineeringVibration measurementVibration meterVibration pick-upsVibration testsVibrationsVibrometersWear-quantityWhole body vibrationsWorking places
  • ISO 385-2005 - 中外标准 - - 2005/4 - 现行
    This International Standard provides metrological and construction requirements for an internationally acceptable series of burettes, suitable for general laboratory purposes. The details specified are in accordance with the principles of design and construction of volumetric glassware given in ISO 384. For piston burettes, see ISO 8655-3.
    定义容积测量仪表规范(验收)尺寸材料分类系统设计极限(数学)计量学作标记精密度调节体积误差极限漂移等级玻璃划刻度实验室玻璃器皿滴定管实验室设备仪表刻度阅读容积测量实验室实验室器皿AdjustmentBurettesClassesClassification systemsDefinitionsDesignDimensionsDriftError limitsGlassGraduationsInstrument scalesLaboratoriesLaboratory equipmentLaboratory glasswareLaboratory wareLimits (mathematics)MarkingMaterialsMetrologyPrecisionReadingSpecification (approval)VolumeVolume measurementVolume measuring instruments
  • JIS C1509-2-2005 - 中外标准 - - 2005/3 - 现行
  • JIS C1509-1-2005 - 中外标准 - - 2005/3 - 现行
  • DL/T 948-2005 - 中外标准 - - 2005/2 - 作废
    混凝土坝监测仪器系列型谱
  • DL/T 947-2005 - 中外标准 - - 2005/2 - 现行
    本标准规定了可用于土石坝安全监测的仪器系列,不包括地震、水力学和环境监测仪器。 本标准适用于土石坝的安全监测,其他岩土工程可参照选用。
    土石坝监测仪器系列型谱
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