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Overview
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Formazin is an aqueous suspension of an insoluble Polymer, formed by the condensation reaction between Hydrazine Sulphate and Hexamethylenetetramine. It was originally suggested as a Turbidity Standard as far back as 1926 and although it suffers from limitations it is still the primary turbidimetric calibration standard. Its limitations include; it tends to settle in solution and agglomerate, as a consequence it has a short shelf life.
- This 1000 NTU Formazin Turbidity Standard is directly traceable to NIST Standard Reference Materials 1690 and 1691Please contact us at for specific academic pricing.
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- Properties
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Overview
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