IS 228 : Part 18 : 1998 Methods of chemical analysis of steels: Part 18 Determination of oxygen by instrumental method

1 Scope

This standard (Part 18) describes the method for determinationof oxygen in steel in the range from 0.001 to 0.100 0 percent byavailable instruments.

2 References

IS228Methods for chemical analysis of steels:

Part 1 :1987 Determination of carbon byvolumetric method (forcarbon 0.05 to 2.50 percent)

Part 2 :1987 Determination of manganese in plaincarbon and lowalloy steels by arsenite method

Part 3 :1987 Determination of phosphorus byalkalimetric method

Part 4 :1987 Determination of total carbon bygravimetric method(for carbon greater than or equal to 0.1 percent)

Part 5 :1987 Determination of nickel by dimethylglyoxime(gravimetric) method (for nickel greater than or equalto 0.1 percent)

Part 6 :1987 Determination of chromium bypersulphate oxidationmethod (for chromium greater than or equal to 0.1percent)

Part 7 :1990 Determination of molybdenum bybenzoinoxine method (formolybdenum greater than or equal to 1 percent)

Part 8 : 1989 Determination of silicon by the gravimetricmethod (forsilicon 0.05 to 5.00 percent)

Part 9 :1989 Determination of sulphur in plaincarbon steels byevolution method (for sulphur 0.01 to 0.25 percent)

Part 10 :1989 Determination of molybdenum by thiocyanate(photometric) method in low and high alloy steels (formolybdenum 0.01 to 1.5 percent)

Part 11 :1990 Determination of silicon by photometricmethod incarbon steels and low alloy steels (for silicon 0.01 to0.05 percent)

Part 12 :1988 Determination of manganese by periodatespectrophotometric method in low and high alloy steels(for manganese 0.01 to 2.0 percent)

Part 13 :1982 Determination of arsenic

Part 14 :1988 Determination of carbon by themalconductivity method(for copper 0.005 to 2.000 percent)

Part 15 :1992 Determination of copper by thiosulaphateiodide method(for copper 0.05 to 5 percent)

Part 16 :1992 Determination of tungsten byspectrophotometric method(for tungsten 0.1 to 2 percent)

Part 17 : 1998 Determination of nitrogen bythermal conductivitymethod (for nitrogen up to .04 percent)