USGS


Water Resources--Office of Water Quality

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smallbeakersNational Field Manual


5.2 Filtered Samples

By D.B. Radtke A.J. Horowitz, and M.W. Sandstrom


   5.2.1

Inorganic constituents

 
  5.2.1.A

Capsule-filter procedure

  5.2.1.B

Plate-filter procedure

   5.2.2

Organic compounds

 
  5.2.2.A

Plate-filter procedure

  5.2.2.B

Capsule-filter procedure for processing samples for analysis of organonitrogen herbicides (optional)

  5.2.2.C Gas-pressurized filter procedures for processing samples for analysis of dissolved and suspended organic carbon


Illustrations

5-1. An equipment system suitable for filtering samples for analysis of organic compounds


Tables

5-3. Field cleaning and conditioning procedures for media used to filter samples for inorganic-constituent analysis
5-4. Field conditioning requirements for media used to filter samples for organic-compound analysis
5-5. Equipment for filtration of water-sediment samples for determination of organic compounds

5-6.

Guidelines for selecting the volume needed for filtration of samples for analysis of suspended organic carbon


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