This International Standard specifies a system of tol-erance grades and required machining allowance grades for the dimensions of castings. It is applicable to the dimensions of cast metals and their alloys produced by various casting manufacturing processes [but see also Introduction g) and clause 5].
This International Standard applies both to general tolerances and/or required machining allowances given on a drawing and to individual tolerances and/or required machining allowances which are shown immediately following a specific dimension (see clause 11).
The system specified applies when the foundry pro-vides the pattern or die equipment or accepts re-sponsibility for proving it.
BS 6615:1996 history
2007BS EN ISO 8062-1:2007 Geometrical product specifications (GPS). Dimensional and geometrical tolerances for moulded parts. Vocabulary
1996BS 6615:1996 Specification for dimensional tolerances for metal and metal alloy castings