IS 6907 : 1992 Method of sampling steel castings

1 Scope

The standard prescribes methods of sampling and criteria foracceptance for steel castings when they are submitted in the formof a batch ar a lot for inspection. Broad outlines on statisticalaids in the manufacture of steel castings have also been indicated:

2 References

IS 397 : Part 1 :1972 Method for statistical qualitycontrol duringproduction: Part 1 Control charts for variables

IS 4905 :1968Methods for random sampling

IS 6601 :1987Permissible deviations in chemical compositionfor products analysis of steel castings

IS 7200 : Part 1 :1989 Presentation of statistical data: Part 1Tabulation and summarization

IS 8800 :1986Technical delivery conditions for steel castings

IS 10645 :1983Method for estimation of process capability

IS 12117 :1987Norms for classification of steel foundries forquality assurance