ICS 77.150.10; 77.150.20 Descriptors: General tolerances, machining allowances, castings, light metal alloys. Gu?rohteile aus Leichtmetallegierungen – Sandgu? – Allgemeintoleranzen, Bearbeitungszugaben (Nicht f ür Neukonstruktionen) In keeping with current practice in standards published by the International Organization for Standardization (ISO), a comma has been used throughout as the decimal m