Benchmark Alkalinity Refill Reagents restock the liquid reagents used with the Benchmark Alkalinity Test Kit. Each refill set includes enough Reagent A and Reagent B for 100 alkalinity tests. This is the same blue-to-red method we built for frequent testing on the New Dawn Aquaculture coral farm, with titrant strength tuned so the amount used converts directly to dKH. What Is Included Reagent A alkalinity indicator Reagent B alkalinity titrant 100 tests when used with the Benchmark 5.00 mL sample method Not Included No test vial No 1 mL syringe No 5 mL syringe No printed storage/display case Testing Range Designed for the Benchmark alkalinity method with a 0-20 dKH test range. Test Procedure Add 5.00 mL aquarium water to the test vial. Add 2 drops of Reagent A. Swirl gently. The sample should turn blue. Use Reagent B to titrate slowly while swirling. Stop at the stable colour change from blue to red. Calculate dKH = mL of Reagent B used x 10. Compatibility Designed for the Benchmark Alkalinity Test Kit method using a 5.00 mL sample volume. For saltwater aquarium testing only. Store reagents sealed and out of reach of children.
