19.120 粒度分析、筛分 标准查询与下载



共找到 708 条与 粒度分析、筛分 相关的标准,共 48

Guidelines for good practices in zeta-potential measurement

ICS
19.120
CCS
发布
2018-09-00
实施

Colloidal systems — Methods for zetapotential determination — Part 2: Optical methods

ICS
19.120
CCS
发布
2018-06-29
实施

Colloidal systems — Methods for zeta-potential determination — Part 1: Electroacoustic and electrokinetic phenomena

ICS
19.120
CCS
发布
2018-06-29
实施

Colloidal systems — Methods for zeta potential determination — Part 3: Acoustic methods

ICS
19.120
CCS
发布
2018-06-29
实施

Colloidal systems — Methods for zetapotential determination — Part 2: Optical methods

ICS
19.120
CCS
发布
2018-06-29
实施

Colloidal systems — Methods for zeta-potential determination — Part 1: Electroacoustic and electrokinetic phenomena

ICS
19.120
CCS
发布
2018-06-29
实施

Colloidal systems — Methods for zeta potential determination — Part 3: Acoustic methods

ICS
19.120
CCS
发布
2018-06-29
实施

Colloidal systems — Methods for zeta potential determination — Part 3: Acoustic methods

ICS
19.120
CCS
发布
2018-06-29
实施

Colloidal systems — Methods for zeta-potential determination — Part 1: Electroacoustic and electrokinetic phenomena

ICS
19.120
CCS
发布
2018-06-29
实施

Colloidal systems — Methods for zetapotential determination — Part 2: Optical methods

ICS
19.120
CCS
发布
2018-06-29
实施

Standard Practice for Measuring Sifting Segregation Tendencies of Bulk Solids

ICS
19.120
CCS
发布
2018-06-01
实施

Determination of particle size distribution. Single particle light interaction methods. Light scattering airborne particle counter for clean spaces

ICS
19.120
CCS
N33
发布
2018-05-25
实施
2018-05-25

1.1 This test method covers the determination of particle size distribution of catalyst and catalyst carrier particles using an electroconductive sensing method and is one of several valuable methods for the measurement of particle size. 1.2 The range of particle sizes investigated was 20 to 150 µm (see IEEE/ASTM SI 10) equivalent spherical diameter. The technique is capable of measuring particles above and below this range. The instrument used for this method is an electric current path of small dimensions that is modulated by individual particle passage through an aperture, and produces individual pulses of amplitude proportional to the particle volume. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Standard Test Method for Particle Size Distribution of Catalysts and Catalyst Carriers by Electronic Counting

ICS
19.120
CCS
发布
2018-05-01
实施

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

ICS
19.120
CCS
A42
发布
2018-05-01
实施

1   Scope 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 - Isopycnic interpolation approach

ICS
19.120
CCS
发布
2018-04-30
实施
2018-04-30

Standard Specification for Industrial Woven Wire Filter Cloth

ICS
19.120
CCS
发布
2018-04-01
实施

Standard Guide for Correlation of Results of Solid Particle Size Measurement Instruments

ICS
19.120
CCS
发布
2018-04-01
实施

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

ICS
19.120
CCS
A42
发布
2018-03-00
实施

Determination of density by volumetric displacement -- Skeleton density by gas pycnometry

ICS
19.120
CCS
发布
2018-02-20
实施

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

ICS
19.120
CCS
A42
发布
2018-02-20
实施



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