§ 801.8 Tolerances for sieves.
Primary source
Verbatim text below is from the Electronic Code of Federal Regulations (eCFR), a public-domain U.S. government work. Always verify the current version with the eCFR before relying on it for any legal matter.
Full Text
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 descriptionTolerance Direct comparisonSample exchange 38.064 × ⁄ inch oblong±0.2 percent, mean deviation from standard sieve using wheat±0.3 percent, mean deviation from standard sieve using wheat 53644⁄ × ⁄ inch slotted±0.3 percent, mean deviation from standard sieve using barley±0.5 percent, mean deviation from standard sieve using barley 536445⁄ × ⁄ inch slotted±0.5 percent, mean deviation from standard sieve using barley±0.7 percent, mean deviation from standard sieve using barley 63644⁄ × ⁄ inch slotted±0.7 percent, mean deviation from standard sieve using barley±1.0 percent, mean deviation from standard sieve using barley
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