This standard applies to barium ferrite (including strontium-added barium ferrite), strontium ferrite, strontium calcium ferrite finished products, semi-finished products, and chlorinated polyethylene type plastically bonded permanent magnet ferrite. Chemical analysis of finished products.
SJ/T 10540-1994 history
2013SJ/T 10540-2013 Chemical analysis methods of products and semifinished products made of permanent ferrite
1970SJ/T 10540-1994 Chemical analysis methods for products and semifinished products made of permanent ferrite