Label abbreviations descriptions

CARBON DIOXIDE†

Chemical Identification
CAS # 124-38-9
Formula

CO₂
Synonyms

carbonic acid gas; dry ice

Physical Properties
Physical description Colorless, odorless gas.
Boiling point sublimes Molecular weight 44.0
Freezing point/melting point -109°F (sublimes) Vapor pressure 56.5 atm
Flash point Vapor density 1.53
Specific gravity 1.56 at -110.2°F Ionization potential 13.77 eV
Lower explosive limit (LEL) Upper explosive limit (UEL)
NFPA health rating NFPA fire rating
NFPA reactivity rating NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.) 0530 0530
Sampling group
Sampler/Sampling media Dräger X-am 5600 Multi-Gas Detector with DrägerSensor IR CO2 ES NDIR sensor. Five layer aluminized gas sampling bag [Calibrated Instruments GSB-P/10]
Sampling time*
Sampling volume (TWA)*

2-5 L
Sampling flow rate (TWA)*

0.01-0.05 L/min
Sampling volume (STEL/Peak/C)*

2-5 L
Sampling flow rate (STEL/Peak/C)*

0.3 L/min
Analytical method instruments GC-TCD
Method reference OSHA 1027 (fully validated) OSHA ID-172 (fully validated)
Notes

Use detector tubes for screening. If greater than PEL, order gas sampling bags.

*Note for sampling with Cali-5-BondTM, 10 liter, five layer aluminized gas sampling bag: This gas sampling bag has an integrated twist on/off valve (V-NPB-2/00) Septum (A-SEPT/.750). The nickel-plated brass connection allows the user to control gas flow into or out of the bag by twisting the barbed stem open (counterclockwise) or closed (clockwise). The jagged barb firmly secures 3/16″ ID sample tubing to the stem of the valve.
Special requirements

* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device Detector tube Detector tube Detector tube Infrared spectrophotometer Infrared spectrophotometer CMS Chip
Model/Type Gastec 2L Dräger - Carbon dioxide 0.1%/a CH23501 Matheson-Kitagawa 8014-126SA Miran 1A & 1B Miran 103 Carbon dioxide, 1-20 Vol% range; Carbon dioxide, 1000-25000 ppm range; Carbon dioxide, 200-3000 ppm range
Sampling information
(see manufacturer instructions) 		0.13-6.0% vol 0.5 - 6.0% vol 0.1-2.6% vol 0.4 ppm at 4.3 µm 2%@4.45 µm

Exposure Limits
OSHA PEL
8-hour TWA
(ST) STEL
(C) Ceiling
Peak
NIOSH REL
Up to 10-hour TWA
(ST) STEL
(C) Ceiling
ACGIH TLV©
8-hour TWA
(ST) STEL
(C) Ceiling
CAL/OSHA PEL
8-hour TWA
(ST) STEL
(C) Ceiling
Peak
PEL-TWA

5000 ppm (9000 mg/m³)

 REL-TWA

5000 ppm (9000 mg/m³)

 TLV-TWA PEL-TWA

5000 ppm (9000 mg/m³)
PEL-STEL REL-STEL

30,000 ppm (54,000 mg/m³)

 TLV-STEL PEL-STEL

30,000 ppm (54,000 mg/m³)
PEL-C REL-C TLV-C PEL-C
Skin notation

N

 Skin notation

N

 Skin notation

N

 Skin notation

N
Notes:

See 29 CFR 1910.1000 Table Z-1.

 Notes: Notes:

Visit the ACGIH TLV site for specific data

 Notes:

See Section 5198.
Health factors:  See NIH-NLM PubChem. IDLH

40,000 ppm
Carcinogenic classifications: Not listed Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

Last Updated Date : 05/23/2024