CCPaSEC logoCentre County Pennsylvania Senior Environmental Corps

at ClearWater Conservancy

 

CCPaSEC uses a Hach DR850 Colorimeter in monthly water testing.  The video below describes tips and time saving aids and the Nitrate-Nitrogen (NO3-N) test using a colorimeter.  Runtime 11 min. 37 sec.

Help with controling the video.

videostartarrow  Click center arrow of video to begin.  Buffering of video may take several minutes prior to video starting.

bleftvideocontrols Task bar below video (left):

  • *Slider Dot / Timeline -
    • Move mouse pointer over horizontal line to the right of the Slider Dot to view min:sec of video frame time.  Click on the line to begin the video at that time point.  OR
    • Click and drag dot to fast forward or rewind video to desired video frame.
  • Left-side Start/Pause control - Click to start or pause video.
  • Volume Control adjustment - Click to mute or for full volume. Click and drag slider for fine tuning.
  • Video frame time / total runtime.

brightvideocontrols Task bar below video (right):

  • Quality Settings
  • Right Viewing Size adjustment - Click to view full screen.  ESC will exit full-screen viewing.

Video © Loretta Jeffreys & CCPaSEC 2013-2016

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