The maintenance tolerances for sieves used in performing official inspection services shall be:
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