"Rare Earth Ceramic Knife" and seven local standard validation

December 25 , reporters learned from the quality supervision department , tungsten and rare earth products by the State Quality Supervision and Inspection Center ( hereinafter referred to as the "National Inspection Center" ) lead guide the development of the "rare earth ceramic knife " and seven local standards recently passed provincial Quality Supervision Bureau for approval. Among them, " Chemical analysis of ferroalloys holmium " three series of standards to fill the gaps in holmium iron alloy analysis , will further improve China's rare earth standard system.

It is understood that through the validation criteria 7 are " rare earth ceramic knife ", " nickel-hydrogen battery cathode material AB3 -type hydrogen storage alloys ", " bonded NdFeB powder ", " samarium cobalt permanent magnet alloy powder analysis pulse heating - Determination of hydrogen content "and" chemical analysis " holmium ferroalloy three series of standard thermal conductivity method .


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