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