| 항목/사용재질 | Carbon Steel | SUS-304, SUS-316 | PVC | FRP | Rubber Lining C/S | P.P Lined C/S | 비고 |
|---|---|---|---|---|---|---|---|
| 1. 급수(여과수) | ① | ③ | ② | - | ③ | - | |
| 2. 처리생산수 | ② | ① | ② | - | ① | - | |
| 3. HCl (2∼8%) | ④ | ④ | ② | 1A | ① | ③ | |
| 4. HCl (30∼35%) | ④ | ④ | ② | 1A | ① | ① | |
| 5. H2SO4(2∼10%) | ④ | ① | ② | 1A | ① | ③ | |
| 6. H2SO4(96%이상) | ① | ③ | ② | 1A | ④ | ④ | |
| 7. NaOH (2∼8%) | ① | 1A | ② | 1A | ① | ③ | |
| 8. NaOH (25∼50)% | ① | 1A | ② | 1A | - | ③ | |
| 9. Instrument Air | ② | ① | ④ | - | - | - | |
| 10. Plant Air | ① | ③ | ④ | - | - | - | |
| 11. Steam | ① | ③ | ④ | ④ | - |