水硬度標準品 Hardness solution, 20 gpg (340 mg/L)/2 mg/L iron, 500 mL
產品編號：47949
20 gpg (340 mg/L) hardness, plus 2 mg/L iron as Fe (Hard water).
Parameter 參數 : Hardness
Description : Hardness as CaCO3
(NIST) also see Calcium
Concentration : 20 gpg (340 mg/L)
Parameter 參數 : Hardness
Description : Hardness as CaCO3
(NIST) also see Calcium
Concentration : 20 gpg (340 mg/L)