Lab glossary
Formazin
A polymer suspension made from hydrazine sulphate and hexamethylenetetramine, used as the primary standard for turbidity. The concentrated stock is defined as 4000 NTU.
- Also: formazin standard
A polymer suspension made from hydrazine sulphate and hexamethylenetetramine, used as the primary standard for turbidity. The concentrated stock is defined as 4000 NTU.