[70961-250ML-F] TOC standard according to ISO/CEN EN1484, 100 mg/L±5 mg/L (Potassium Phthalate Monobasic), stabilized with 100 ppm ZnSO₄ + 195,690원
[70961-500ML-F] TOC standard according to ISO/CEN EN1484, 100 mg/L±5 mg/L (Potassium Phthalate Monobasic), stabilized with 100 ppm ZnSO₄ + 291,830원