جهت اندازه گیری اکسیژن محلول با دامنه پایین Dissolved Oxygen AccuVac® Ampules, LR, pk/25 For determination of low range Dissolved Oxygen by the Indigo Carmine Method, using AccuVac® Ampules. Hach Method 8316. Range: 8 - 1000 µg/L O2. Package of 25 ampules