Read More Tipsâº âº. A programmable thermostat can help you save big on energy costs, adjusting the temperature when you're at work, at play, or asleep.
For an updated and comprehensive look at DO and the technology used to measure it, check out: Dissolved Oxygen, or Measuring Dissolved Oxygen. Dissolved oxygen in water is vital for underwater life. It is what aquatic creatures need to breathe. Dissolved oxygen is often called DO for short.
Significance and Use. 1  4.1 Dissolved oxygen is required for the survival and growth of many aquatic organisms, including fish. 2  1.1 These test methods cover the determination of dissolved oxygen in water. 3  1.2 The precision of Test Methods A and B was carried out using a saturated sample of reagent water.