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Chemical Sampling Information (CSI)
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General Description

OSHA IMIS Code Number: 0910

Chemical Abstracts Service (CAS) Registry Number: 109-89-7

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: HZ8750000; 31431

Department of Transportation Regulation Number (49 CFR 172.101) and Guide: UN1154 Flammable Liquid

Chemical Description and Physical Properties:
colorless liquid with ammonia-like odor
molecular weight: 73
boiling point: 132°F
vapor pressure: 195 mm
melting point: -58°F
Incompatibilities: Strong oxidizers and acids

Exposure Limits

OSHA Permissible Exposure Limit (PEL):
General Industry: 25 ppm, 75 mg/m3

Construction Industry: 25 ppm, 75 mg/m3 TWA
American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 5 ppm, 15 mg/m3 TWA; 15 ppm, 45 mg/m3 STEL (Skin) A4 (Not Classifiable as a Human Carcinogen)

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 10 ppm TWA, 25 ppm STEL

Health Factors

Potential Symptoms: Eye, skin, respiratory irritation

Health Effects: Irritation-Eye, Nose, Throat, Skin---Marked (HE14) Myocardial degeneration (HE3)

Affected Organs: Respiratory system, skin, eyes

NIOSH/OSHA/DOE Health Guideline: Diethylamine

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):
  • sampling media: Coated XAD-7 tube (80/40 mg sections, 20/50 mesh); coating is 10% (w/w) NBD-Chloride
    analytical solvent: Tetrahydrofuran
    maximum volume: 10 Liters
    maximum flow rate: 0.2 L/min (TWA)
    maximum volume: 3 Liters
    maximum flow rate: 0.2 L/min (STEL)
    current analytical method: High Performance Liquid Chromatography; HPLC/FLU/VIS
    method reference: 2 OSHA 41
    sampling and analytical error: 0.12
    method classification: Fully Validated
  • sampling media: Coated XAD-2 tube (80/40 mg sections, 20/50 mesh); coating is 10% 1-Naphthylisothiocyanate
    analytical solvent: Dimethylformamide
    maximum volume: 10 Liters
    maximum flow rate: 0.2 L/min (TWA)
    maximum volume: 3 Liters
    maximum flow rate: 0.2 L/min (STEL)
    current analytical method: High Performance Liquid Chromatography; HPLC/UL58
    method classification: Fully Validated
    method reference: 2 (OSHA In-house file)
    method classification: Partially Validated
Conditions: Column: CN Mobile Phase: 80:20 Isooctane: IPA Detector Wavelength: 465 EX: 525 EM (Fluor) Detection Limit: 1.6 ug/sample

Secondary Laboratory Sampling/Analytical Method (SAM2):
  • device: Detector Tube
    company: Gastec
    part #: 180
    range: 1-60 ppm
    method classification: Mfg
  • device: Detector Tube
    company: MSA
    part #: 92115
    range: 10-200 ppm
    method classification: Mfg
  • device: Detector Tube
    company: Kitagawa
    part #: 222S
    range: 1-20 ppm
    method classification: Mfg
  • device: Instrumentation
    company: Infrared Spectrophotometer
    part #: MIRAN 1A & 1B
    range: 1.1 ppm @ 9.0 um
    method classification: Mfg
  • device: Instrumentation
    company: Infrared Spectrophotometer
    part #: MIRAN 103
    range: 0-50 ppm @ 8.7 um
    method classification: Mfg
  • device: Instrumentation
    company: PID
    part #: Photoionization Detector
    method classification: Mfg
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