LECO COMBUSTION ANALYSIS FOR FE, AL, TI, CO, CU, AND NI ALLOYS
CARBON-SULFUR ANALYSIS
LOW ALLOY STEEL, STAINLESS AND CARBON STEELS, TITANIUM, NICKEL AND COBALT ALLOYS
Carbon and sulfur analysis by combustion is an analytical technique that allows the simultaneous quantification of carbon and sulfur in metal samples. The solid metal sample is placed in a ceramic crucible and rapidly heated in an oxygen atmosphere. The carbon and sulfur in the sample react with the oxygen to form carbon dioxide (CO2) and sulfur dioxide (SO2). CO2 and SO2 are measured using an infrared detector and the concentrations of carbon and sulfur are determined.
OXYGEN-NITROGEN ANALYSIS
ALUMINUM, TITANIUM, NICKEL, COPPER AND COBALT ALLOYS
resulting carbon dioxide (CO2) is measured using an infrared detector. The oxygen concentration is then calculated by the instrument based on the CO2 measured and the known weight of the sample tested. Nitrogen is determined by a “thermal conductivity” technique. Helium acts as a carrier gas for the nitrogen and the change in thermal conductivity is measured and related to the amount of nitrogen in the sample.
HYDROGEN ANALYSIS
IRON, TITANIUM, COBALT AND NICKEL ALLOYS
Hydrogen analysis by inert gas fusion-thermal conductivity is an analytical technique that allows the quantification of hydrogen in metal samples. The solid metal sample is placed in a graphite crucible and rapidly heated in an argon atmosphere. The hydrogen concentration is determined by an “inert gas fusion-thermal conductivity” technique. Argon acts as a carrier gas for the hydrogen and the change in thermal conductivity is measured and related to the amount of hydrogen in the sample.
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ASTM E 1019
ASTM E 1447
ASTM E 1409
RELEVANT ACCREDITATIONS
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