EHS
OSHA / NIOSH Chemical Exposure & PPE Engine

Ethyl acetate

CAS: 141-78-6
•
RTECS: N/A
OSHA PEL (8-hr TWA) 400 ppm OSHA PEL: 400 ppm / 1400 mg/m3
NIOSH REL 400 ppm NIOSH REL: 400 ppm
IDLH Threshold 4000 ppm Imm. Dangerous to Life/Health
Skin Hazard Notation No Dermal standard 29 CFR 1910
Interactive Engine

Ethyl acetate Shift Exposure & PPE Compliance Calculator

Input your measured workplace air sample concentration and work shift schedule. The engine applies the Brief & Scala mathematical reduction model to determine legally defensible compliance.

ppm
OSHA Compliance Determination Awaiting Sample Input
Adjusted PEL (Brief-Scala)
--
Hazard Ratio (HR)
--
Mandated APF Respirator
--
Enter an air sampling concentration above to evaluate whether your facility triggers the OSHA Action Level (0.5× PEL) or requires mandatory respiratory protection under 29 CFR 1910.134.

Need formal documentation for safety audits?

Generates an instant 1-page OSHA 29 CFR 1910.1000 compliance record.

★ OSHA Compliance Toolkit Asset

Need an Official Written Safety Program for Ethyl acetate?

Get attorney- and CIH-reviewed OSHA 1910.1200 HazCom and 1910.134 Respiratory Protection templates, 544-chemical extended shift Excel solvers, and audit checklists.

Get Master Toolkit — $67 Instant Digital Download • 30-Day Guarantee
🛡️

NIOSH Respirator & Barrier Protection Specifications

Required Cartridge / Filter Organic Vapor (Black)

Certified for concentrations within permissible limits.

Chemical Barrier Gloves Nitrile or Neoprene Chemical Barrier

Prevents transdermal permeation.

NIOSH Respiratory Protocol:

Mandatory NIOSH-approved Organic Vapor (Black) required when airborne concentration exceeds action level under OSHA 29 CFR 1910.134.

❓

Frequently Asked Questions About Ethyl acetate Exposure

What is the legal OSHA PEL for Ethyl acetate?

Under OSHA 29 CFR 1910.1000 Table Z-1, the 8-hour Time-Weighted Average (TWA) Permissible Exposure Limit (PEL) for Ethyl acetate (CAS 141-78-6) is 400 ppm. In addition, NIOSH recommends a Recommended Exposure Limit (REL) of 400 ppm.

How do extended 10-hour and 12-hour shifts affect Ethyl acetate exposure limits?

Because OSHA PELs are formulated for 8-hour workdays, working 10-hour or 12-hour shifts reduces recovery time. Applying the standard Brief & Scala mathematical model reduces the allowable concentration by a Reduction Factor (RF = 0.700 for 10-hr, RF = 0.500 for 12-hr). For Ethyl acetate, an 8-hr PEL of 400 ppm adjusts to half that value on a 12-hour shift.

What respirator and PPE is required when handling Ethyl acetate?

When atmospheric concentrations exceed the permissible limit up to 10× PEL, OSHA 29 CFR 1910.134 mandates a half-mask elastomeric respirator equipped with Organic Vapor (Black). For dermal exposure, Nitrile or Neoprene Chemical Barrier are recommended.

What is the IDLH threshold for Ethyl acetate?

The Immediately Dangerous to Life or Health (IDLH) concentration established by NIOSH for Ethyl acetate is 4000 ppm. Any entry into atmospheres at or above this concentration requires positive-pressure supplied air or Self-Contained Breathing Apparatus (SCBA).

Need Professional Industrial Hygiene Air Testing?

Ensure 100% OSHA audit compliance with accredited 8-hr personal air sampling, local exhaust ventilation (LEV) face velocity verification, and certified CIH reporting for your facility.