7 C.F.R. § 801.8

Current through October 31, 2024

Section 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

7 C.F.R. §801.8