A42 物理学与力学 标准查询与下载

DIN ISO 22412:2018 粒径分析. 动态光散射(DLS) (ISO 22412-2017)

This document specifies the application of dynamic light scattering (DLS) to the measurement of average hydrodynamic particle size and the measurement of the size distribution of mainly submicrometre-sized particles, emulsions or fine bubbles dispersed in liquids. DLS is also referred to as "quasi-elastic light scattering (QELS)" and "photon correlation spectroscopy (PCS)", although PCS actually is one of the measurement techniques. This document is applicable to the measurement of a broad range of dilute and concentrated suspensions. The principle of dynamic light scattering for a concentrated suspension is the same as for a dilute suspension. However, specific requirements for the instrument setup and specification of test sample preparation are required for concentrated suspensions. At high concentrations, particle-particle interactions and multiple light scattering can become dominant and can result in apparent particle sizes that differ between concentrated and dilute suspensions.

Particle size analysis - Dynamic light scattering (DLS) (ISO 22412:2017)

DIN IEC/TS 62607-3-2:2018 纳米加工.关键控制特性.第3-2部分:发光纳米粒子.量子点分散质量的测定(IEC/TS 62607-3-2-2017)

This IEC Technical Specification specifies the method for determining the mass of a sample of QD dispersion after the removal of impurities and surfactant ligands through heating at high temperatures.

Nanomanufacturing - Key control characteristics - Part 3-2: Luminescent nanoparticles - Determination of mass of quantum dot dispersion (IEC/TS 62607-3-2:2017)

DIN 5499:2018 高热值与低热值.一般原则

This document specifies Terms ans definitions for gross and net calorific values. With this document the interested parties agree on uniform terms.

Gross and Net Calorific Values - General principles

ISO 17915:2018 光学和光子学.传感用半导体激光器测量方法

This document describes methods of measuring temperature and injected current dependence of lasing wavelengths, and lasing spectral line width in relation to semiconductor lasers for sensing applications. This document is applicable to all kinds of semiconductor lasers, such as edge-emitting type and vertical cavity surface emitting type lasers, bulk-type and (strained) quantum well lasers, and quantum cascade lasers, used for optical sensing in e.g. industrial, medical and agricultural fields.

Optics and photonics - Measurement method of semiconductor lasers for sensing

ISO 21501-4:2018 粒径分布测定.单粒子光干扰法.第4部分:无菌空间光散射尘埃粒子计数器

This document describes a calibration and verification method for a light scattering airborne particle counter (LSAPC), which is used to measure the size distribution and particle number concentration of particles suspended in air. The light scattering method described in this document is based on single particle measurements. The typical size range of particles measured by this method is between 0,1 μm and 10 μm in particle size. Instruments that conform to this document are used for the classification of air cleanliness in cleanrooms and associated controlled environments in accordance with ISO 14644-1 and ISO 14644-2, as well as the measurement of number and size distribution of particles in various environments. The following parameters are within the scope of this document: — size setting error; — counting efficiency; — size resolution; — false count; — maximum particle number concentration; — sampling flow rate error; — sampling time error; — response rate; — calibration interval; — reporting results from test and calibration.

Determination of particle size distribution - Single particle light interaction methods - Part 4: Light scattering airborne particle counter for clean spaces

BS PD ISO/TR 3313:2018 封闭管道中流体流量的测量.流体脉动对流量测量仪器影响的指南

Measurement of fluid flow in closed conduits. Guidelines on the effects of flow pulsations on flow-measurement instruments

ISO/TR 3313:2018 封闭管道中流体流量的测量 流体脉动对流量测量仪器影响的指南

Measurement of fluid flow in closed conduits - Guidelines on the effects of flow pulsations on flow-measurement instruments

ISO 18747-1:2018 沉降法测定颗粒密度.第1部分:等密度插值法

This document specifies a method for the determination of the density of solid particles or liquid droplets (below referred to generically as “particles”) dispersed in a liquid. The method is based on the fact that a particle wholly immersed in fluid experiences buoyancy equal to the weight of the fluid displaced by this particle (Archimedean principle), and if its mass force matches the buoyant force, it stops gravitational or centrifugal settling/creaming and the particle remains suspended. This implies that the density of the particle equals the density of the liquid. In this document, particle density determination is conducted by analysing the direction of the migration movement of particles dispersed in liquids with densities that are lower and higher than particle density. All particles are of the same material composition.

Determination of particle density by sedimentation methods - Part 1: Isopycnic interpolation approach

JIS Z 8827-1:2018 粒度分析.图像分析法.第1部分:静态图像分析法

Particle size analysis -- Image analysis methods -- Part 1: Static image analysis methods

DB51/T 2434-2017 材料热导率和热扩散系数的瞬态测量—脉冲法

本标准规范了采用平面热源，以恒定热流强度脉冲加热，瞬态测量固体材料热导率和热扩散系数的基本原理、计算公式、试件制备、测量装置、测量系统、操作系统和数据处理、测量操作要点以及测量结果的表达等方面的内容。 本标准适合用于含湿状态或绝干状态下,在室温附近，测量保温绝热材料、导热材料等固体板材的热导率和热扩散系数，测试范围分别为0.01 W•m-1•K-1 ＜λ＜500 W•m-1•K-1 和5×10-8 m2•s-1 ≤ α ≤ 10-4 m2•s-1。

Transient Measurement of Material Thermal Conductivity and Thermal Diffusivity—Pulse Method

BS ISO 9123:2017 水文测量.水位、落差和流量的关系

Hydrometry. Stage-fall-discharge relationships

BS ISO 18406:2017 水下声学 冲击打桩辐射水下声的测量

Underwater acoustics. Measurement of radiated underwater sound from percussive pile driving

ISO/TR 19664:2017 人对振动的反应. 根据健康和安全要求的工作场所日常振动暴露评定用仪表和设备的指南和术语

Human response to vibration - Guidance and terminology for instrumentation and equipment for the assessment of daily vibration exposure at the workplace according to the requirements of health and safety

ISO/TS 14411-1:2017 微粒基准材料的制备. 第1部分: 单分散球形颗粒尖桩栅栏多分散材料

Preparation of particulate reference materials - Part 1: Polydisperse material based on picket fence of monodisperse spherical particles

JIS Z 8900-1 ERRATUM 1:2017 勘误

ERRATUM

ISO 20998-3:2017 用声学方法测量和表征粒子.第3部分：非线性理论指南

This document gives guidelines for ultrasonic attenuation spectroscopy methods for determining the size distributions of one or more material phases dispersed in a liquid at high concentrations, where the ultrasonic attenuation spectrum is not a linear function of the particle volume fraction. In this regime, particle-particle interactions are not negligible. This document is applicable to colloids, dispersions, slurries, and emulsions. The typical particle size for such analysis ranges from 10 nm to 3 mm, although particles outside this range have also been successfully measured. Measurements can be made for concentrations of the dispersed phase ranging from about 5 % by volume to over 50 % by volume, depending on the density contrast between the continuous and the dispersed phases, the particle size, and the frequency range[9] [10]. These ultrasonic methods can be used to monitor dynamic changes in the size distribution, including agglomeration or flocculation.

Measurement and characterization of particles by acoustic methods - Part 3: Guidelines for non-linear theory

ISO 26101:2017 声学. 自由场环境资格证明试验方法

Acoustics - Test methods for the qualification of free-field environments

BS EN ISO 7029:2017 声学 年龄和性别相关听力阈值的统计分布

Acoustics. Statistical distribution of hearing thresholds related to age and gender

JIS Z 8890:2017 颗粒系统的颗粒特性. 词汇

Particle characterization of particulate systems -- Vocabulary

DIN EN 61340-4-9:2017 静电.第4-9部分:特定应用的标准试验方法.服装(IEC 61340-4-9-2016);德文版本EN 61340-4-9-2016

Electrostatics - Part 4-9: Standard test methods for specific applications - Garments (IEC 61340-4-9:2016); German version EN 61340-4-9:2016