Document jqVvyKjdNppjGjwwqko3rRY5
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Diamond Shamrock
Interoffice Correspondence
To: From: Date:
Subject:
J. P. Witeczek A. H. Karrenbrock February 27, 1980
__
Report No. 352-3AS-79--0105-002
Analyses for Vinyl Chloride Monomer (Q256-3352)
PURPOSE:
To determine the concentration of vinyl chloride monomer (VCM) in air by the charcoal tube adsorption method.
ENVIRONMENTAL
REFERENCE:
10628-96-(1 through 6)
NOTEBOOK REFERENCE:
9927-125
PROCEDURE:
Number 2 of the Environmental Sciences Gas Chromatography Procedures.
DISCUSSION:
This method measures the personnel and area exposure to VCM in the workplace environment. The VCM is adsorbed onto activated charcoal, desorbed with carbon disulfide in a sealed system, and analyzed by gas chromatography. Samples are collected to determine the Time Weighted Average (TWA) and the ceiling exposure to VCM.
RESULTS:
The results for the samples you collected are listed on the attached sheet. Results are given in parts per million (ppm). The first five personnel samples showed undetectable levels of VCM. Sample number 6, collected in the hood near the VCM tank, is not a personnel sample and is probably not subject to the present OSHA exposure limits.
If' you have any questions or require additional information, please contact us at your convenience.
&H
A. H, Karrenbrock Research Chemist
x. allot-.
D. L. Bailee Research Supervisor/Environmental Sciences Unit
D. E. Stallard
Manager/Environmental Sciences Unit /djw
OCC 9756
A
Diamond Shamrock
Interoffice Correspondence
To:
From:
Date:
Subject:
J. P. Witeczek A. H. Karrenbrock February 27, 1980
Report No. 352-3AS-79-0105-002
Analyses for Vinyl Chloride Monomer (0256-3352)
PURPOSE:
To determine the concentration of vinyl chloride monomer (VCM) in air by the charcoal tube adsorption method.
ENVIRONMENTAL
REFERENCE:
10628-96-(1 through 6)
NOTEBOOK REFERENCE:
9927-125
PROCEDURE:
Number 2 of the Environmental Sciences Gas Chromatography Procedures.
DISCUSSION:
This method measures the personnel and area exposure to VCM in the workplace environment. The VCM is adsorbed onto activated charcoal, desorbed with carbon disulfide in a sealed system, and analyzed by gas chromatography. Samples are collected to determine the Time Weighted Average (TWA) and the ceiling exposure to VCM.
RESULTS:
The results for the samples you collected are listed on the attached sheet. Results are given in parts per million (ppm). The first five personnel samples showed undetectable levels of VCM. Sample number 6, collected in the hood near the VCM tank, is not a personnel sample and is probably not subject to the present OSHA exposure limits.
If you have any questions or require additional information, please contact us at your convenience.
a
A. H. Karrenbrock Research Chemist
j)
D. L. Bailee Research Supervisor/Environmental Sciences Unit
D. E. Stallard
Manager/Environmental Sciences Unit /djw
OCC 9757