View all text of Part 801 [§ 801.1 - § 801.12]
§ 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 | 5 5/64 × 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 |
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