Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
IPC Subgroup
G01J 1/48

using chemical effects

Introduced: September 1968

Last revised: January 2006

Full Title

Photometry, e.g. photographic exposure meter > using chemical effects

Classification Context

Section:
PHYSICS
Class:
MEASURING; TESTING
Subclass:
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY

3 direct subcodes

Child Classifications

Navigate with arrow keys, Enter to open

  • G01J 1/5 using change in colour of an indicator, e.g. actinometer
  • G01J 1/52 using photographic effects
  • G01J 1/54 by observing photo-reactions between gases