| ICS | Field |
|---|---|
| 23.020 |
Fluid storage devices Small containers for transportation of fluids and bulk materials, see 55.140 Storage devices for petroleum products and natural gas, see 75.200 |
| 23.040 |
Pipeline components and pipelines Pipeline components and pipelines for petroleum products and natural gas, see 75.200 |
| 23.060 | Valves |
| 23.080 |
Pumps Pumps for fluid power systems, see 23.100.10 Vacuum pumps, see 23.160 |
| 23.100 | Fluid power systems |
| 23.120 |
Ventilators. Fans. Air-conditioners Marine ventilation and air-conditioning systems, see 47.020.90 Mining ventilation and air-conditioning systems, see 73.100.20 Ventilation and air-conditioning in buildings, see 91.140.30 |
| 23.140 |
Compressors and pneumatic machines Compressed air, see 71.100.20 |
| 23.160 |
Vacuum technology Including vacuum pumps |