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Chemical Sampling Information (CSI)
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General Description

Synonyms: 5-Methyl-3-Heptanone; Amyl ethyl ketone (Incorrectly named in 1910.1000 as Ethyl sec-Amyl Ketone)

OSHA IMIS Code Number: 1075

Chemical Abstracts Service (CAS) Registry Number: 541-85-5

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: MJ7350000; 39209

Department of Transportation Regulation Number (49 CFR 172.101) and Guide: UN2271 Flammable Liquid

Chemical Description and Physical Properties:

colorless liquid with a mild, fruity odor
molecular weight: 128
vapor pressure: 2 mm
boiling point: 318°F
melting point: -70°F

Incompatibilities: Oxidizers

Exposure Limits

OSHA Permissible Exposure Limit (PEL):

General Industry: 25 ppm, 130 mg/m3

Construction Industry: 25 ppm, 130 mg/m3 TWA

American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 25 ppm, 131 mg/m3 TWA

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 25 ppm TWA

Health Factors

Potential Symptoms: Eye, mucous membrane irritation; headaches; narcosis, coma; dermati

Health Effects: Irritation-Eye, Nose, Throat, Skin---Moderate (HE15)

Affected Organs: Eyes, skin, respiratory system, CNS

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):

  • sampling media: Charcoal Tube (100/50 mg sections, 20/40 mesh)
    analytical solvent: (99:1) Carbon Disulfide/Methanol
    alternate solvent: (99:1) Carbon Disulfide/Dimethylformamide
    maximum volume: 25 Liters
    maximum flow rate: 0.2 L/min
    current analytical method: Gas Chromatography; GC/FID
    method reference: 1 (NIOSH 1301)
    sampling analytical error: 0.17
    method classification: Fully Validated

Secondary Laboratory Sampling/Analytical Method (SAM2):

  • device: Instrumentation
    company:     Infrared Spectrophotometer
    part #: MIRAN 1A & 1B
    range:     1.0 ppm @ 9.0 um
    class: Mfg

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