Entering USDA Classification Data

Select Window > USDA to view the USDA classification window.

Note that the USDA Sieve percentages data entry fields will be automatically filled in with data calculated by the program from your grain size test. If you haven't entered grain size data into the program yet, do so before continuing:

Select Test > Enter GrainSize Data.
Enter your grain size distribution data.
Select Test > Enter Classifications Data.

The USDA Classification Window

Sieve percentages

Enter these values as numbers between 0 and 100.

Note: All fields require data: if all material is smaller than a particular sieve enter 100 as the percent passing, if all material is larger, enter 0 as the percent passing.

Checked by

LabSuite includes a USDA chart report showing the textural triangle and the classifications for a number of soil samples; below the border of the report you can list the name of a the person who has reviewed the classification data by entering that person's name into the Checked by field.

When printing a USDA chart report that includes multiple soil samples on a single page, LabSuite will use the "Checked by" name entered for the first sample placed on the report page.