| Ọkwa | Ọsọ | Njide ihe dị n'ime (μm) | Ọnụego mmiri ①s | Ọkpụrụkpụ (mm) | Ibu ntọala (g/m2) | Mgbawa mmiri mmiri② mm H2O | Ash<% |
| 1 | Ọkara | 11 | 40-50 | 0.18 | 87 | 260 | 0.15 |
| 2 | Ọkara | 8 | 55-60 | 0.21 | 103 | 290 | 0.15 |
| 3 | Ọkara-nwayọ | 6 | 80-90 | 0.38 | 187 | 350 | 0.15 |
| 4 | Ọsọ ọsọ dị oke ọsọ | 20-25 | 15-20 | 0.21 | 97 | 260 | 0.15 |
| 5 | Ọ dị nnọọ nwayọ | 2.5 | 250-300 | 0.19 | 99 | 350 | 0.15 |
| 6 | nwayọ | 3 | 90-100 | 0.18 | 102 | 350 | 0.15 |
① Ọsọ nzacha bụ oge maka nzacha mmiri 10ml (23±1℃) nke a gwakọtara agwakọta site na akwụkwọ nzacha 10cm2.
E nwere mpempe akwụkwọ na mpịakọta ndị nwere nha emere nke ọma.
| Ọkwa | Nha (cm) | Nkwakọ ngwaahịa |
| 1,2,3,4,5,6 | 60×60 46X57 | 60×60 |
| Φ7,Φ9,Φ11,Φ12.5,Φ15,Φ18,Φ18.5,Φ24 | Mpempe akwụkwọ: Mpempe akwụkwọ 100/ngwugwu, ngwugwu 10/CTN | |
| Gburugburu: okirikiri 100/ngwugwu, ngwugwu 50/CTN |
1. Nyocha dị mma tupu ọgwụgwọ;
2. Nzacha nke ihe ndị na-eme ka mmiri dị n'ime ya pụta, dịka ferric hydroxide, lead sulphate, calcium carbonate;
3.Nnwale mkpụrụ na nyocha ala.
Kpọtụrụ anyị maka ozi ndị ọzọ, anyị ga-enye gị ngwaahịa ka mma na ọrụ kacha mma.