StacksVerified U.S. regulatory reference

21 CFR §868.1890

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)Identification. A predictive pulmonary-function value calculator is a device used to calculate normal pulmonary-function values based on empirical equations.
  2. (b)Classification. Class II (performance standards).