Investigating particle size or size distribution (by measuring osmotic pressure G01N7/10; investigating sedimentation of particle suspensions G01N15/04; investigating individual particles G01N15/10)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Investigating particle size or size distribution

CPC: Investigating particle size or size distribution (by measuring osmotic pressure G01N7/10; investigating sedimentation of particle suspensions G01N15/04; investigating individual particles G01N15/10)

Full Title

Full titles differ between systems:

IPC:

Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials > Investigating particle size or size distribution

CPC:

Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials > Investigating particle size or size distribution (by measuring osmotic pressure G01N7/10; investigating sedimentation of particle suspensions G01N15/04; investigating individual particles G01N15/10)

CPC subdivides this area 8x more granularly than IPC with 7 additional codes.

7 codes are CPC-only extensions.

Note: 4 CPC extensions are marked as secondary classification only.

IPC defines codes here since 2024.

Child Classifications

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G01N 15/0205 by optical means since 2024 +4 CPC IPC+CPC Available in IPC and CPC
G01N 15/0255 +1 CPC CPC only CPC only
G01N 15/0266 CPC only CPC only
G01N 15/0272 CPC only CPC only
G01N 2015/0277 2nd only CPC only CPC only
G01N 2015/0283 2nd only CPC only CPC only
G01N 2015/0288 2nd only CPC only CPC only
G01N 2015/0294 2nd only CPC only CPC only