---
type: threshold
id: n-ethylmorpholine
asset: workplace-exposure-limits
title: "N-Ethylmorpholine — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side"
sources:
  - https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
source_quote: "N-Ethylmorpholine | 100-74-3 | 20 | 94 | X |"
generated: true
harvested: 2026-08-05
stale_after: 2027-08-05
substance: "N-Ethylmorpholine"
cas_number: "100-74-3"
pel_ppm: "20"
pel_mgm3: "94"
verified: true
---
**Substance:** N-Ethylmorpholine

**CAS No.:** 100-74-3

**PEL (ppm):** 20

**PEL (mg/m³):** 94

> N-Ethylmorpholine | 100-74-3 | 20 | 94 | X |

Source: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1>