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Chemical Sampling Information (CSI)
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General Description

Synonyms: Dimethyl methane; LPG

OSHA IMIS Code Number: 2150

Chemical Abstracts Service (CAS) Registry Number: 74-98-6

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: TX2275000

Department of Transportation Regulation Number (49 CFR 172.101) and Guide: 1075 115; 1978 115

NIOSH Pocket Guide to Chemical Hazards, Propane: chemical description, physical properties, potentially hazardous incompatibilities, and more

Related Chemical:

Exposure Limits

OSHA Permissible Exposure Limit (PEL):

General Industry: 29 CFR 1910.1000 Z-1 Table -- 1000 ppm, 1800 mg/m3 TWA

American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 2500 ppm, 4508 mg/m3 TWA

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 1000 ppm, 1800 mg/m3 TWA

Health Factors

NIOSH Immediately Dangerous To Life or Health Concentration (IDLH): 2100 ppm (lower explosive limit)

Potential Symptoms: Dizziness, disorientation (confusion), excitation (hallucinations, euphoria); nausea, vomiting; unconsciousness; cardiac arrest (asphyxia); frostbite (contact with liquid ); long-term intermittent exposure to high concentrations can cause nosebleeds, rhinitis, oral and nasal ulcerations, conjunctivitis, bloodshot eyes, anorexia, weight loss, lethargy, fatigue and damage to the CNS.

Health Effects: Explosive (HE18); CNS effects (HE7); Asphyxiant (HE17)

Affected Organs: CNS

Date Last Revised: 07/10/2003

Literature Basis:

  • International Chemical Safety Cards (WHO/IPCS/ILO): Propane.
  • Fonseca, C.A., Auerbach, D.S. and Suarez, R.V.: The forensic investigation of propane gas asphyxiation. Am. J. Forensic Med. Pathol. 23(2): 167-169, 2002.
Monitoring Methods used by OSHA

Laboratory Sampling/Analytical Method:

  • sampling media: Two Carbosieve S-III tubes in series (130/65 mg sections)
    analytical solvent: Carbon Disulfide
    maximum volume: 5.0 Liters
    maximum flow rate: 0.1 L/min
    current analytical method: Gas Chromatography; GC/FID
    method reference: OSHA Manual of Analytical Methods (OSHA PV2077)
    method classification: Partially Validated

  • sampling media: Combustible Gas Meter
    method reference:     NIOSH Manual of Analytical Methods (NIOSH S87)
    method classification: Fully Validated

On-Site Sampling Techniques/Methods:

  • device: Detector Tube
    manufacturer: AUER/MSA
    model/type: Propane-200, MSA P/N 804418, AUER P/N 5086-831
    sampling information: follow manufacturer’s instructions
    upper measurement limit: 4000 ppm
    detection limit: approx. 200 ppm
    overall uncertainty: unknown
    method reference: on-site air secondary (manufacturer)

  • device: Detector Tube
    manufacturer: Dräger
    model/type: Hydrocarbons 0.1%/b, order no. CH 26101
    sampling information: 7 to 15 strokes
    upper measurement limit: 1.3 Vol.-%
    detection limit: approx. 0.5 Vol.-%
    overall uncertainty: 49%
    method reference: on-site air secondary (manufacturer)

  • device: Detector Tube
    manufacturer: Gastec
    model/type: 103
    sampling information: 0.5 to 2 strokes
    upper measurement limit: 2.4%
    detection limit: 0.05%
    overall uncertainty: 16%
    method reference: on-site air secondary (manufacturer)

  • device: Detector Tube
    manufacturer: Matheson-Kitagawa
    model/type: 8014-125SA
    sampling information: follow manufacturer’s instructions
    upper measurement limit: 0.5%
    detection limit: approx. 0.02%
    overall uncertainty: unknown
    method reference: on-site air secondary (manufacturer)

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