Lông-tō͘
Lông-tō͘ (濃度; Eng-bûn: concentration) sī bó͘ bu̍t-chit tī chóng-liōng tiong chiàm-iú ê hun-liōng.
Khah chia̍p-khòaⁿ ê lông-tō͘ piáu-sī hong-sek ū ē-té kúi-nā khoán:
- Chit-liōng hun-sò͘ (mass fraction)
- Thé-chek hun-sò͘ (volume fraction)
- Ppm (parts-per million)
- Chit-liōng mol lông-tō͘ (molality)
- Thé-chek mol lông-tō͘ (molarity)
- Mol hun-sò͘ (mole fraction)
- Chit-liōng lông-tō͘ (mass concentration)