1. Place the check soil extract in position #1 of the rectangular sample rack.
2. Place the first soil sample extract in position #2 and continue consecutively until all the soil sample extracts, except the 2 redip samples are in the rectangular sample rack,leaving position #21 vacant.
3. Place a SOL 3 high calibration standard in rack position #21. If the set has less than 20 samples, omit this step.
4. Place the extraction blank in the rack position following the last sample.
5. Place a SOL 1 low calibration standard in the next rack position.
6. Place the redip of set sample #10 in the next rack position.
7. Place the redip of set sample #20 in the next rack position.
8. Place a SOL 3 high calibration standard in the next rack position.
9. Place a deionized water blank in the next rack position.