GroundRules
7 CFR 801.8: Tolerances for sieves.
Where this section sits in the code
- Title 7—Agriculture
- Subtitle B—Regulations of the Department of Agriculture
- CHAPTER VIII—AGRICULTURAL MARKETING SERVICE (FEDERAL GRAIN INSPECTION SERVICE, FAIR TRADE PRACTICES PROGRAM), DEPARTMENT OF AGRICULTURE
- SUBCHAPTER A—FEDERAL GRAIN INSPECTION
- PART 801—OFFICIAL PERFORMANCE REQUIREMENTS FOR GRAIN INSPECTION EQUIPMENT
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
Collected 2026-08-27T02:24:01Z. Source file · JSON