| 1 | Military and civilian equipment and electrical and electronic products | 20 | Environmental stress screening process | Paints and varnishes -- Cross-cut test ISO 2409-2013 |
| 21 | Water supply devices of railway passenger car TB/T 1720-2017 5.1.6 |
| Railway applications -Electronic equipments used on rail vehicles GB/T 25119-2010 12.2.9 |
| Door of EMU-Part 2:Internal door TB/T 3454.2-2016 7.4.4 |
| Cut-out cock for EMU/DMU TB/T 3456-2016 5.8 |
| Toilet system for railway passenger car and multiple unit TB/T 3338-2013 6.3 |
| Air conditioning unit for railway passenger car TB/T 1804-2017 6.4.7 |
| Switch machine for railway - Part 2: Test methods GB/T 25338.2-2019 5.4 |
| Door of EMU-Part 1:Passenger entrance door TB/T 3454.1-2016 7.4.10 |
| Railway applications - Rolling stock-Electronic equipment EN 50155:2017 13.4.9 |
| Front hatch mechanism of EMU/DMU TB/T 3458-2016 6.8 |
| Wind turbine generator system technical specification of electric pitch system NB/T 31018-2018 5.3.14 |
| Railway applications -- Electronic equipment used on rolling stock IEC 60571:2012 12.2.10 |
| Railway applications - Power convertors installed on board rolling stock - Part 1: Characteristics and test methods IEC 61287-1:2014 4.5.3.16 |
| 22 | Toilet system for railway passenger car and multiple unit TB/T 3338-2013 6.2 |
| Water supply devices of railway passenger car TB/T 1720-2017 5.1.6 |
| Railway applications -Electronic equipments used on rail vehicles GB/T 25119-2010 12.2.9 |
| Wind turbine generator system technical specification of electric pitch system NB/T 31018-2018 5.3.14 |
| Cut-out cock for EMU/DMU TB/T 3456-2016 5.8 |
| Door of EMU-Part 2:Internal door TB/T 3454.2-2016 7.4.4 |
