Patent classifications
G
PHYSICS
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G01
MEASURING; TESTING
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G01N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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15/00
Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
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G01N15/02
Investigating particle size or size distribution
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G01N15/0255
with mechanical, e.g. inertial, classification, and investigation of sorted collections
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G01N2015/0261
using impactors
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