PROWAG (36 CFR 1190)
R403 — Operable Parts
PROWAG · Chapter 4: Supplemental Technical Requirements. Full current text with cross-references on BuildSpec.
R403 Operable Parts R403.1 General. Operable parts shall comply with R403. R403.2 Clear Space. A clear space complying with R404 shall be provided at operable parts. R403.3 Height. Operable parts shall be placed within one or more of the reach ranges specified in R406. R403.4 Operation. Operable parts shall be operable with one hand and shall not require tight grasping, pinching, or twisting of the wrist. The force required to activate operable parts shall be 5 pounds (22.2 N) maximum.
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