ASTM D Standard Test Method for Particle Size Distribution of Catalytic Material by Laser Light Scattering. ASTM Methods – for Micromeritics and Particulate Systems Particle Size Analyzers. ASTM D Standard Test Method for Particle Size of Catalytic . Buy ASTM D() Standard Test Method for Particle Size Distribution of Catalytic Material by Laser Light Scattering from SAI Global.
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The results are strongly influenced by physical principles employed by each method of particle size analysis. The results of any particle sizing method should be used only in a relative sense and should not be regarded as absolute when comparing results obtained by other methods.
ASTM Methods – Particle Size Analysis
These differences include lasers of different wavelengths, detector configuration, and the algorithms used to convert scattering to particle size distribution. Therefore, comparison of results from different instruments may be misleading. Several manufacturers of testing equipment now have units based on these principles.
Although each type of testing equipment utilizes the same basic principles for light scattering as a function of particle size, different assumptions pertinent to application of the theory and different models for converting light measurements to particle size, may lead to different results for each instrument. Furthermore, any particles which are outside the size f4464 range of the instrument will be ignored, causing an increase in the reported percentages within the detectable range.
ASTM International – Standard References for ASTM D – 15
A particle size distribution which ends abruptly at the detection limit of the instrument may indicate that particles outside the zstm are present. Therefore, use of this test method cannot guarantee directly comparable results from different types of instruments. For example, kaolinite measured at The absorbance imaginary component for minerals and metal oxides is normally taken as 0.
Many of the c4464 values were measured at Extrapolation, interpolation, or estimation to the wavelength of the laser being used can therefore be made. The technique is capable of measuring particles above and below this atsm. The angle and intensity of laser light scattered by the particles are selectively measured to permit calculation of a volume distribution using light-scattering techniques. No other units of measurement are included in this standard.
ASTM Methods – Particle Size Analysis | Micromeritics
It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
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