General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest
GB/T 9634.4-2007
Scope
This part of ISO 10000 specifies guidelines for the permissible limits of surface imperfections on toroidal cores complying with the relevant general specification. This Part can be used as a sub-specification in the coordination of surface defects between the core manufacturer and the user.
GB/T 9634.4-2007 Referenced Document
GB/T 9634.1-2002 Ferrite cores-Guide on the limits of surface irregularities--Part 1: General specification
GB/T 9634.4-2007 history
2007GB/T 9634.4-2007 Ferrite cores Guide on the limits of surface irregularities Part 4: Ring-cores