Ethyl butyl ketone (3-Heptanone)
CAS: 106-35-4
• RTECS: N/A
OSHA PEL (8-hr TWA) 50 ppm OSHA PEL: 50 ppm / 230 mg/m3
NIOSH REL 50 ppm NIOSH REL: 50 ppm
IDLH Threshold 500 ppm Imm. Dangerous to Life/Health
Skin Hazard Notation No Dermal standard 29 CFR 1910
Interactive Engine
Ethyl butyl ketone (3-Heptanone) 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.
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OSHA Compliance Determination
Awaiting Sample Input
Adjusted PEL (Brief-Scala)
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Hazard Ratio (HR)
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Mandated APF Respirator
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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.
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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.
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.