7 CFR § 801.8 - Tolerances for sieves.

---
identifier: "/us/cfr/t7/s801.8"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "7 CFR § 801.8 - Tolerances for sieves."
title_number: 7
title_name: "Agriculture"
section_number: "801.8"
section_name: "Tolerances for sieves."
chapter_name: "AGRICULTURAL MARKETING SERVICE (FEDERAL GRAIN INSPECTION SERVICE, FAIR TRADE PRACTICES PROGRAM), DEPARTMENT OF AGRICULTURE"
subchapter_number: "A"
subchapter_name: "FEDERAL GRAIN INSPECTION"
part_number: "801"
part_name: "OFFICIAL PERFORMANCE REQUIREMENTS FOR GRAIN INSPECTION EQUIPMENT"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "7 U.S.C. 71-87k"
regulatory_source: "51 FR 7050, Feb. 28, 1986, unless otherwise noted."
cfr_part: "801"
---


# 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:

|  |  |  |
| --- | --- | --- |
| .064 × ⁄ inch oblong | ±0.2 percent, mean deviation from standard sieve using wheat | ±0.3 percent, mean deviation from standard sieve using wheat |
| ⁄ × ⁄ inch slotted | ±0.3 percent, mean deviation from standard sieve using barley | ±0.5 percent, mean deviation from standard sieve using barley |
| 5⁄ × ⁄ inch slotted | ±0.5 percent, mean deviation from standard sieve using barley | ±0.7 percent, mean deviation from standard sieve using barley |
| ⁄ × ⁄ inch slotted | ±0.7 percent, mean deviation from standard sieve using barley | ±1.0 percent, mean deviation from standard sieve using barley |