ml of seed. Record your air-calibration value on your benchsheet every day. It can be very revealing to do this, especially if you use a weak seed. The method, duration of seed aeration and the settling time are not as important as the fact that they should be consistent. Acceptable depletions and dilutions: Different states and different regulators have different criteria for acceptable depletions. Never pipet seed material into a dry BOD bottle.
Seed Control Calculations: Record ml of seed, initial DO, and final. Wir verwenden Cookies, um Inhalte zu personalisieren, Werbeanzeigen maßzuschneidern und zu messen sowie die Sicherheit unserer Nutzer zu erhöhen. Standard Methods, 20th and 21st editions. Always have some dilution water in first. These bottles typically contain 6 ml of BOD Standard and 2 ml of seed, although the amount of seed is occasionally varied. Next, fill bottle with dilution water. Most regulators will tell you that you need to only run one seed control and one BOD standard to comply. However, we strongly disagree with this idea.
Leirskole bod, Dagmamma bod,