| Portland Cement GB-175-2007 P.O42.5 | Date | ||
| Items | Examine date | Mandatory targets | Standard |
| Mgo(%) | 2.58 | Max5.0 | GB/T 176-1996 |
| So3(%) | 2.64 | Max3.5 | GB/T 176-1996 |
| LOI(%) | 3.2 | Max5.0 | GB/T 176-1996 |
| Fineness(80pm residue on residue)(%) | 5 | Max10.0 | GB/T 1345-2005 |
| Setting Time:Initial | 180 | Min45 | GB/T 1346-2001 |
| Setting Time:Final | 240 | Max600 | GB/T 1346-2001 |
| Soundness(pat test) | 0.1 | Max0.5 | GB/T 1346-2001 |
