Hanna Marine Nitrite LR - HI764-25

Hanna HI764-25 is a 25-test reagent refill for the HI764 Marine Nitrite Ultra Low Range Checker. Choose it when replenishing an existing HI764 test setup; the product code identifies reagent packets rather than the electronic meter.

The packets support the instrument's diazotization method, which creates a pink tint in the prepared sample. Use the sample volume, mixing and reading sequence specified for HI764. Substituting a reagent intended for another nitrite range would change the test chemistry.

Keep the packet lot and expiry details available, especially when comparing results from an older and a newly opened refill. A consistent test method is useful when checking biological filtration or investigating a change in water quality.