General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest
GB/T 30061-2013
Scope
This standard specifies the designation method, technical requirements, test methods, inspection rules, packaging, storage and transportation, marking and quality certificate of silicon manganese nitride. This standard applies to manganese silicon nitride used as nitrogen-enhancing agent in steelmaking.
GB/T 30061-2013 Referenced Document
GB/T 13247 Methods for sampling and testing the grain size of ferroalloys products*, 2019-10-18 Update
GB/T 3650 The general rules for inspection,packing,storing,transportation,marking and certification of ferroalloy
GB/T 4010 Ferroallys sampling and preparation of samples for chemical analysis*, 2015-09-11 Update