Raws li cov tshuaj Standard HG / T 2765.5-2005, tus nqi PB ntawm lub silica gel desiccant (hom A) yuav tsum ua kom tau raws li tus qauv tsim ntawm 4 txog 8. Yuav kom ua pov thawj tias peb cov khoom siv silica gel zoo, peb tau xeem tawm ib qho kev xeem hauv qhov Lab.
A: Cov kauj ruam:
1. Siv ob peb qho SILICA GEL (hom A), 2-4 hli, dej ntsiab <>
Nqa tawm ob peb SILICA GEL (hom A), 2-4 hli, dej ntsiab <>
Noj tawm ob peb txiv kab ntxwv silica gel, 2-4 hli
Siv ob peb xuab zeb silica gel, 1-3 hli
2. Coj ntawm lub ntsuas cua, ua ntej siv lub ntsuas 'meter, calibrate nws nyob rau hauv qhov kev daws teeb meem.
3. Raws li Standard HG / T 2765.5-2005, silica gel desiccant xeem txoj kev, tsab xov xwm 13.
B: Kev Tshawb Fawb Sij Hawm ntawm cov pob tshab ntawm silica gel . (Kub = 25 ℃, RH = 50%)
| Yam khoom | PH nqi ntawm silica gel desiccant (dej ntsiab <> | PH nqis ntawm silica gel desiccant (dej ntsiab <> |
| 1 | 4.7 | 4.2 |
| 2 | 4.8 | 4.3 |
| 3 | 4.6 | 4.2 |
C: Xeem Cov txiaj ntsig ntawm qhov qhia txog silica gel (Kub = 25 ℃, RH = 50%)
| Yam khoom | qhia txog silica gel (txiv kab ntxwv) | qhia txog silica gel (xiav) |
| 1 | 2.0 | 6.3 |
| 2 | 2.0 | 6.6 |
| 3 | 2.1 | 6.4 |
