WOCE 1991 chlorofluorocarbon standard intercomparison report. Data report

Technical Report · Thu Jul 01 00:00:00 EDT 1993

OSTI ID:5779033

Bullister, J L; Menzia, F; Wisegarver, D P

A chlorofluorocarbon (CFC) standard intercomparison study was done among ten laboratories involved in measurements of dissolved and atmospheric CFCs as part of the World Ocean Circulation Experiment (WOCE) and other programs. The goal of the study was to compare CFC calibration scales and to allow CFC data sets collected by the participating groups to be merged together more easily. One cyclinder was distributed to each participating laboratory for analysis and return to PMEL. Within the precision of the analytical techniques used at PMEL, the CFC-11 and CFC-12 concentrations in the cylinders remained uniform throughout the intercomparison exercise. The CFC-113 and carbon tetrachloride content of the cylinders remained relatively uniform in all but one of the cylinders analyzed. The CFC-11 concentrations reported by participating laboratories ranged from 258.8 to 275.6 parts-per-trillion (PPT). The reported CFC-12 concentrations ranged from 487.4 to 503.5 PPT. Two laboratories reported values for CFC-113, and only one laboratory reported a value for carbon tetrachloride. Details of the calibration techniques used by the ten participating laboratories are given in the Appendices of the report.

• Research Organization: Pacific Marine Environmental Lab., Seattle, WA (United States)
• OSTI ID: 5779033
• Report Number(s): PB-93-234326/XAB; NOAA-DR-ERL-PMEL-45
• Resource Relation: Other Information: Also available from Supt. of Docs. Also pub. as Joint Inst. for the Study of the Atmosphere and Ocean, Seattle, WA. rept. no. CONTRIB-238. See also PB--93-190049
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
CALIBRATION STANDARDS
INTERLABORATORY COMPARISONS
AIR POLLUTION MONITORING
ATMOSPHERIC CIRCULATION
CARBON TETRACHLORIDE
CHLOROFLUOROCARBONS
CYLINDERS
LABORATORIES
MEASURING METHODS
STATISTICAL DATA
WASHINGTON
CHLORINATED ALIPHATIC HYDROCARBONS
DATA
DEVELOPED COUNTRIES
HALOGENATED ALIPHATIC HYDROCARBONS
INFORMATION
MONITORING
NORTH AMERICA
NUMERICAL DATA
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
STANDARDS
USA
540120* - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)