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FORM C - 2 CORN FINAL PRE-HARVEST LAB DETERMINATIONS 2008 |
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NATIONAL AGRICULTURAL STATISTICS SERVICE |
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YEAR, CROP, FORM, MMDD (1 – 7) |
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8 4 5 ____ ____ ____ ____ |
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Date Sample Received in Lab: |
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EAR WEIGHT (Both Combined) |
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1. Weight of ears in sealed bags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
Grams to Tenths |
501 |
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2. Weight of same number of new bags and rubber bands . . . . . . . . . . . . . . . . . . . . . . . . . |
Grams to Tenths |
502 |
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GRAIN WEIGHT and MOISTURE DETERMINATIONS |
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Shell grain from all ears. If ears are too wet to shell easily, dry them for a short period at no more than 70 degrees C, before shelling. |
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3. Weight of all grain shelled from ears at time of moisture test . . . . . . . . . . . . . . . . . . . . . |
Grams to Tenths |
507 |
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4. Moisture content of shelled grain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
Percent (One Decimal) |
508 |
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5. Was the grain used for the moisture determination oven dried and/or wetted to enable processing of the sample? |
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YES – Enter code from below. NO – Enter code 4.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
510 |
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1 = Sample was oven dried only 2 = Sample was wetted only 3 = Sample was oven dried AND wetted |
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Lab Technician |
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Date Analyzed |
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MM DD |
FORM C-2: CORN |
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If the sample weight is too small for moisture test, sufficient grains of known moisture content (use same class and stage of maturity) will be added to the sample so that a moisture test can be made. The moisture content of the sample can then be derived using the following formula: |
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E = |
( A + B ) D - ( B x C) |
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A |
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Where |
A = Weight of small corn sample . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
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Grams |
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B = Weight of additional grain required for moisture test . . . . . . . . . . . |
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Grams |
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C = Moisture percent of B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
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Percent |
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D = Moisture percent of A + B combined . . . . . . . . . . . . . . . . . . . . . . . . . . |
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Percent |
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E = Result : Moisture percent of small corn sample (enter in item 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
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Percent |
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File Type | application/msword |
File Title | Project Code 104 QID 120032C-2 |
Author | USDA |
Last Modified By | hancda |
File Modified | 2008-05-19 |
File Created | 2008-05-19 |