Weigh 5 g into 100 mL digestion tube. From ICP printout move decimal 3 places to the left for P, K, Ca, Mg, and S. Move decimal 1 place to the left for Zn, Cu, Mn, and Na. Record P, K, Ca, Mg, and S in % with 4 decimal places. Record Zn, Cu, Mn, and As in ppm with 2 decimal places. (If As is not detectable record a 1 on the data sheet.)
Ash according to wet ashing procedure. Record results according to feed procedure. If As is required, see below.