The scope of application is in accordance with 1. of JIS C 9745-1. However, 1.1 is based on this standard.
JIS C 9745-2-4:2000 history
2009JIS C 9745-2-4:2009 Hand-held motor-operated electric tools -- Safety -- Part 2-4: Particular requirements for sanders and polishers other than disk type
2000JIS C 9745-2-4:2000 Safety of hand-held motor-operated electric tools Part 2-4: Particular requirements for sanders