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TOC standard according to ISO/CEN EN1484, 250 mg/L±5 mg/L (Potassium Phthalate Monobasic), stabilized with 100 ppm ZnSO4

TOC standard

TOC standard according to ISO/CEN EN1484, 250 mg/L±5 mg/L (Potassium Phthalate Monobasic), stabilized with 100 ppm ZnSO4