Modular order for the development of mechanical structures for electronic equipment practices—Part 2-4: Sectional specification—Interface co-ordination dimensions for the 25 mm equipment practice—Adaptation dimensions for subracks or chassis applicable in cabinets or racks in accordance with IEC 60297-3-100 (19 in)
2018-12-28
2019-07-01
| 标准号 | 标准名称 | 状态 | 发布日期 | 实施日期 |
|---|---|---|---|---|
| GB/T 44058-2024 | 铁氧体磁心的标记 | 现行 | 2024-05-28 | 2024-12-01 |
| GB/T 19804-2026 | 焊接结构的一般尺寸公差和形位公差 | 即将实施 | 2026-09-28 | 2027-04-01 |
| YS/T 1882-2026 | 锂离子电池正极材料前驱体分析方法 晶体结构的测定 X射线衍射法 | 即将实施 | 2026-08-17 | 2027-03-01 |