G01N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G01N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G01N33/00
Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
G01N33/00
Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00