ASTM E1458 Standard Test Method for Calibration Verification of Laser Diffraction Particle Sizing Instruments Using Photomask Reticles
Данный раздел/документ содержится в продуктах:
- Техэксперт: Машиностроительный комплекс
- Картотека зарубежных и международных стандартов
- DIN ISO 9276-2 Representation of results of particle size analysis - Part 2: Calculation of average particle sizes/diameters and moments from particle size distributions (ISO 9276-2:2001)
- 19
- DIN ISO 9276-2 Representation of results of particle size analysis - Part 2: Calculation of average particle sizes/diameters and moments from particle size distributions (ISO 9276-2:2001)
- 19.120
- DIN ISO 9276-2 Representation of results of particle size analysis - Part 2: Calculation of average particle sizes/diameters and moments from particle size distributions (ISO 9276-2:2001)
- DIN 66120 Particle size analysis - Size analysis by air classification with centrifugal counterflow classifier
- DIN 66119 Particle size analysis - Size analysis by air classification with gravitation-counterflow elutriator
- DIN 66118 Particle size analysis - Size analysis by air classification - Fundamentals
- DIN ISO 9276-4 Representation of results of particle size analysis - Part 4: Characterization of a classification process (ISO 9276-4:2001)
- DIN 66118 Particle size analysis - Size analysis by air classification - Fundamentals
- DIN 66119 Particle size analysis - Size analysis by air classification with gravitation-counterflow elutriator
- DIN 66120 Particle size analysis - Size analysis by air classification with centrifugal counterflow classifier
- DIN 66119 Particle size analysis - Size analysis by air classification with gravitation-counterflow elutriator
- DIN 66118 Particle size analysis - Size analysis by air classification - Fundamentals
- DIN ISO 9276-4 Representation of results of particle size analysis - Part 4: Characterization of a classification process (ISO 9276-4:2001)
- DIN 66118 Particle size analysis - Size analysis by air classification - Fundamentals
- DIN 66119 Particle size analysis - Size analysis by air classification with gravitation-counterflow elutriator
- DIN 66119 Particle size analysis - Size analysis by air classification with gravitation-counterflow elutriator
- DIN 66118 Particle size analysis - Size analysis by air classification - Fundamentals
- DIN ISO 9276-4 Representation of results of particle size analysis - Part 4: Characterization of a classification process (ISO 9276-4:2001)
- DIN 66118 Particle size analysis - Size analysis by air classification - Fundamentals
- DIN 66118 Particle size analysis - Size analysis by air classification - Fundamentals
- DIN ISO 9276-4 Representation of results of particle size analysis - Part 4: Characterization of a classification process (ISO 9276-4:2001)
- DIN ISO 9276-4 Representation of results of particle size analysis - Part 4: Characterization of a classification process (ISO 9276-4:2001)
- DIN ISO 9276-6 Representation of results of particle size analysis - Part 6: Descriptive and quantitative representation of particle shape and morphology (ISO 9276-6:2008)
- ISO 13322-1 Particle size analysis - Image analysis methods - Part 1: Static image analysis methods - Second Edition
- ISO 14887 Sample Preparation - Dispersing Procedures for Powders in Liquids - First Edition
- BSI BS ISO 13320 Particle size analysis - Laser diffraction methods
- Картотека зарубежных и международных стандартов
ASTM International
Standard Test Method for Calibration Verification of Laser Diffraction Particle Sizing Instruments Using Photomask Reticles
N E1458
Annotation
This test method describes a procedure necessary to permit a user to easily verify that a laser diffraction particle sizing instrument is operating within tolerance limit specifications, for example, such that the instrument accuracy is as stated by the manufacturer. The recommended calibration verification method provides a decisive indication of the overall performance of the instrument at the calibration point or points, but it is specifically not to be inferred that all factors in instrument performance are verified. In effect, use of this test method will verify the instrument performance for applications involving spherical particles of known refractive index where the near-forward light scattering properties are accurately modeled by the instrument data processing and data reduction software. The precision and bias limits presented herein are, therefore, estimates of the instrument performance under ideal conditions. Nonideal factors that could be present in actual applications and that could significantly increase the bias errors of laser diffraction instruments include vignetting4 (that is, where light scattered at large angles by particles far away from the receiving lens does not pass through the receiving lens and therefore does not reach the detector plane), the presence of nonspherical particles, the presence of particles of unknown refractive index, and multiple scattering.
This test method shall be used as a significant test of the instrument performance. While the procedure is not designed for extensive calibration adjustment of an instrument, it shall be used to verify quantitative performance on an ongoing basis, to compare one instrument performance with that of another, and to provide error limits for instruments tested.
This test method provides an indirect measurement of some of the important parameters controlling the results in particle sizing by laser diffraction. A determination of all parameters affecting instrument performance would come under a calibration adjustment procedure.
