1 Scope
This standard specifies the requirements, test methods, inspection rules and marking, packaging, transportation and storage of the materials for sintered neodymium iron boron permanent magnets.
This standard is applicable to the materials for sintered neodymium iron boron permanent magnets, which are produced with powder metallurgical technique and are used for manufacture of permanent magnetic components and the like in such domains as electronics, electricity, machinery and medical equipment.
2 Normative References
The following standards contain provisions which, through reference in this standard, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding corrections to), or revisions of, any of these publications do not apply. However, all parties coming to an agreement based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards. For undated references, the latest edition of the normative document referred to applies.
GB/T 2828.1 Sampling Procedures for Inspection by Attributes - Part 1: Sampling Schemes Indexed by Acceptance Quality Limit (AQL) for Lot-by-lot Inspection
GB/T 3217 Permanent Magnet (Magnetically Hard) Materials - Methods of Measurement of Magnetic Properties
GB/T 8170 Rules for Rounding off of Numberical Values
GB/T 9637 Electrotechnical Terminology - Magnetic Materials and Components
3 Terminologies and Definitions
Foreword I
1 Scope
2 Normative References
3 Terminologies and Definitions
4 Requirements
5 Test Methods
6 Inspection Rules
7 Marking, Packaging, Transportation and Storage
Appendix A (Normative) Dimensional Deviation and Shape Misalignment of Materials for Sintered Neodymium Iron Boron Permanent Magnets
Appendix B (Informative) Additional Magnetic Properties and Principal Mechanical and Physical Properties of Materials for Sintered Neodymium Iron Boron Permanent Magnets
Appendix C (Informative) Chemical Composition, Manufacturing Technique and Application of Materials for Sintered Neodymium Iron Boron Permanent Magnets
