History

Time	Change
2010-07-11 02:30:47+00:00	Associated with 日本工業規格
2019-06-25 03:43:10+00:00	Associated with 日本産業規格
2020-10-10 07:59:38+00:00	Associated with JIS規格
2022-07-27 03:21:32+00:00	Associated with JIS Z