成人做爰免费视频免费看_成人a级高清视频在线观看,成人a大片在线观看,成人a大片高清在线观看,成人av在线播放,一a一级片,一级黄 中国色 片,一级黄 色蝶 片,一级黄色 片生活片

For determination of chromate by sodium thiosulfate Digital Titrator titration. Hach Method 8211. Range: 20-400 mg/L CrO4. Reagent Set includes: Dissolved Oxygen 3 Reagent Powder Pillows, Potassium Iodide Powder Pillows, Sodium Thiosulfate Cartridge (0.2068 N) and Starch Indicator Solution. Approximay 40-100 tests

• Accurate results - when and where you need them
• Fast and Flexible
• Versatile
• Economical

  Accurate results - when and where you need them

  Digital Titrator methods use a high-precision dispensation device and cartridges of concentrated titrant to allow analyses in the lab, the plant or the field.

  Fast and Flexible

  Interchangeable cartridges allow you to change titrants in seconds. No cleaning or rinsing burets.

  Versatile

  More than 50 parameter/range combinations are available

  Economical

  Concentrated titrants allow 40-100 typical titrations per cartridge.

  Specifications

  # Tests:40 - 100

  Method Name:8211

  Platform :PP, DT

  Range:to CrO₄^2-

  Ranges:20 to 400 mg/L CrO₄^2-