| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| stevie | "Also, the drinking water standard for nitrates is 10 milligrams per liter (10 mg/l) nitrate-N, or 45 mg/l nitrate-NO3. Most of the consumer tests f..." | Read more » | over 4 years ago | |||
| stevie | "I just looked into these a little further. All of them use sulphuric acid which can be dangerous. The brown ring test: https://byjus.com/chemistry..." | Read more » | over 4 years ago | |||
| stevie | "Hi! This is helpful thank you!! can you say more about the tests- how you might conduct it, the costs or the supplies you need for each one? " | Read more » | over 4 years ago |