Chemicals for Bioresearch
394640
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COD Standard (500 ppm)
25ml
liquid / COMPOSITION:
Potassium Hydrogen Phthalate: 0.4251 g
Distilled water (s.q.m.): 1000.0 ml
Uncertainty: See certificate
Traceability: NIST
Concentration: 450-550 ppm
The used reference product, is traceable with the NIST standard Potassium Hydrogen Phthalate ref. 84j