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Unformatted text preview: 9. Weigh the pan + dry soil and record the weight in the notebook. 10. Dispose of soil in soil waste bucket (not the trash can). Oven-dried soil is NOT appropriate for most soil chemical, physical or biological analyses. One exception is the acid digestion method for total elemental analysis (EPA methods 3051 and 3051A) 11. Clean or dispose of pan (they can be reused indefinitely). 12. Calculate the water content using the equation above. Excel spreadsheet example: 1 A B C D E F G 2 Sample # pan wt. pan + wet wt. pan + dry wt. % moisture sample wet wt O.D. wt 3 alpha or num (g) (g) (g) [=(C D)/(D B)*100] (g) [=F/(1+(E/100))] 4 1A 10.1 36.8 32.2 20.8 5.2 4.3 (calculated) (calculated) except for calculations in cells E and G, all other data or formulas are entered manually...
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This note was uploaded on 10/20/2010 for the course SOIL 479 taught by Professor Ulery during the Spring '10 term at NMSU.
- Spring '10