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Review on πŸ”¬ Hanna Instruments HI782 11 Nitrate Calibration: Ensuring Precision and Accuracy in Nitrate Measurement by Marc Gallner

Revainrating 3 out of 5

Nice to have

One of the bottles has a pretty good scratch, not what you need with a colorimeter, I'll just swap it out for a new bottle. When I tested my HI736 tester with this 100ppb certified standard, I got 80/82/80ppb in three tests. I was expecting something closer to 100ppb. 20% variance is a lot!

Pros
  • Nice packaging
Cons
  • I don't remember