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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33/00
Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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G01N33/26
Oils; Viscous liquids; Paints; Inks
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G01N33/28
Oils; , i.e. hydrocarbon liquids;
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G01N33/2835
Specific substances contained in the oils or fuels
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G01N33/287
Sulfur content
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