Cov lus txhais rau kev faib tawm corrosion
Raws li kev pabcuam hauv kev tshawb nrhiav qhov yuav tsum tau ua rau kev kho ua ntej, peb tuaj yeem txhais cov kev faib tawm sib txawv:
Corrosion Chav Kawm 0
- Sab hauv tsev nrog cov av noo tshaj 60%
- Tsawg heev corrosion txaus ntshai (aggressivity)
CORROSION CLASS 1
- Sab hauv tsev hauv chav tsis muaj cua sov, zoo ventilated
- Me ntsis kev pheej hmoo corrosion (aggressivity)
Corrosion Chav Kawm 2
- Sab hauv tsev nrog qhov kub thiab txias. Sab nraum zoov hauv kev nyab xeeb hauv av, deb ntawm hiav txwv thiab kev lag luam.
- Medium corrosion txaus ntshai (aggressivity)
CORROSION CLASS 3
- Hauv thaj chaw muaj neeg coob coob lossis ze rau thaj chaw muaj kev lag luam. Saum cov dej qhib ze ntawm ntug dej hiav txwv.
- Loj corrosion txaus ntshai (aggressivity)
Corrosion Chav Kawm 4
- Tsis tu ncua, high humidity. Nyob ze kev lag luam uas tsim los yog siv tshuaj.
- Loj heev corrosion txaus ntshai (aggressivity)