The equipment, reagents, standards, autoanalyzer solutions, procedure and quality control are the same as those specified in the soil analysis method for extractable chloride, pages 37-41, with the following exceptions:

1. Extraction - step 1 - Weigh 100 mg plant tissue into a 25X200 mm test tube.
2. Standards - step 2 - 100 ppm chloride standard is eliminated.
3. Standards - step 3 - is changed as follows:
   1. Pipet the designated volumes of 1000 ppm chloride standard into 100 mL volumetric flasks. Dilute to volume with deionized water and mix well.

      Standard #	Stock Solution mL	Final Concentration ppm	Instrument Readout ppm
      CAL1	150	150	30000
      CAL2	80	80	16000
      CAL3	60	60	12000
      CAL4	40	40	8000
      CAL5	20	20	4000

4. Procedure - step 5 - changed to select CLPLANT from the sample table menu.
5. Procedure - step 10 - changed to select CLPLANT from the data collect menu.