7 CFR § 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