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Code of Federal Regulations (Last Updated: July 5, 2024) |
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Title 7 - Agriculture |
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Subtitle B - Regulations of the Department of Agriculture |
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Chapter VIII - Grain Inspection, Packers and Stockyard Administration (Federal Grain Inspection Service), Department of Agriculture |
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Part 801 - Official Performance Requirements for Grain Inspection Equipment |
§ 801.8 - Tolerances for sieves.
Latest version.
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§ 801.8 Tolerances for sieves.
The maintenance tolerances for sieves used in performing official inspection services shall be:
(a) Thickness of metal: ±0.0015 inch.
(b) Accuracy of perforation: ±0.001 inch from design specification.
(c) Sieving accuracy:
Sieve description Tolerance Direct comparison Sample exchange .064 × 3⁄8 inch oblong ±0.2 percent, mean deviation from standard sieve using wheat ±0.3 percent, mean deviation from standard sieve using wheat 5⁄64 × 3⁄4 inch slotted ±0.3 percent, mean deviation from standard sieve using barley ±0.5 percent, mean deviation from standard sieve using barley 55⁄64 × 3⁄4 inch slotted ±0.5 percent, mean deviation from standard sieve using barley ±0.7 percent, mean deviation from standard sieve using barley 6⁄64 × 3⁄4 inch slotted ±0.7 percent, mean deviation from standard sieve using barley ±1.0 percent, mean deviation from standard sieve using barley