Norm

NEN-ISO 9276-2:2014 en

Weergave van de resultaten van de analyse van de deeltjesgrootteverdeling - Deel 2: Berekening van de gemiddelde deeltjesgrootte/middellijnen en momenten uit de deeltjesgrootteverdelingen

124,99

Over deze norm

Status Definitief
Aantal pagina's 27
Commissie Nanotechnologie
Gepubliceerd op 01-05-2014
Taal Engels
NEN-ISO 9276-2 provides relevant equations and coherent nomenclatures for the calculation of moments, mean particle sizes and standard deviations from a given particle size distribution. Two notation systems in common use are described. One is the method of moments while the second describes the moment-ratio method. The size distribution may be available as a histogram or as an analytical function. The equivalent diameter of a particle of any shape is taken as the size of that particle. Particle shape factors are not taken into account. It is essential that the measurement technique is stated in the report in view of the dependency of sizing results of measurement principle. Samples of particles measured are intended to be representative of the population of particles. For both notation systems, numerical examples of the calculation of mean particle sizes and standard deviation from histogram data are presented in an annex. The accuracy of the mean particle size may be reduced if an incomplete distribution is evaluated. The accuracy may also be reduced when very limited numbers of size classes are employed.

Details

ICS-code 19.120
Nederlandse titel Weergave van de resultaten van de analyse van de deeltjesgrootteverdeling - Deel 2: Berekening van de gemiddelde deeltjesgrootte/middellijnen en momenten uit de deeltjesgrootteverdelingen
Engelse titel Representation of results of particle size analysis - Part 2: Calculation of average particle sizes/diameters and moments from particle size distributions
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