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Application of colorimetric indicators and thermo-hand method to determine base permeation through chemical protective gloves.

Authors
Vo-E
Source
J Occup Environ Hyg 2004 Dec; 1(12):799-805
NIOSHTIC No.
20025920
Abstract
The aim of this study was to assess the use of colorimetric indicator pads and the thermo-hand method for detection of inorganic/organic base permeation of chemical protective gloves under simulated in-use conditions. Breakthrough times for four types of gloves were determined based on the color change of pads and ranged from 3 to 10 min for butylamine, from 4 min to greater than 4 hours for diisopropylamine, from 6 min to greater than 4 hours for triethylamine, and greater than 4 hours for sodium hydroxide. Quantification was performed for butylamine, diisopropylamine, and triethylamine by gas chromatography following solvent desorption. These chemicals exhibited greater than 99% adsorption on the pads at spiking levels of 1.08-1.11microg for each base. The recovery for the system was calculated for each chemical, with results ranging from 50-74%(RSD less than or equal to 5%) for these bases over the spiking range 0.22-1.11microg. The quantitative mass of the bases on the pads at the time of breakthrough detection ranged from 118-121, 117-120, and 109-116microg/cm2 for butylamine, diisopropylamine, and triethylamine, respectively. The thermo-hand test method and base indicators together should find utility in detecting, collecting, and quantitatively analyzing base permeation samples under simulated in-use conditions.
Keywords
Protective-clothing; Gloves; Chemical-indicators; Colorimetry; Solvents; Quantitative-analysis; Thermodynamic-reactions; Thermal-properties; Testing-equipment; Gas-chromatography; Amines
Contact
National Institute for Occupational Safety and Health, National Personal Protective Technology Laboratory, 626 Cochrans Mill Road, Pittsburgh, PA 15236
CODEN
JOEHA2
CAS No.
109-73-9; 108-18-9; 121-44-8
Publication Date
20041201
Document Type
Journal Article
Email Address
eav8@cdc.gov
Fiscal Year
2005
NTIS Accession No.
NTIS Price
Issue of Publication
12
ISSN
1545-9624
NIOSH Division
NPPTL
Priority Area
Disease and Injury: Allergic and Irritant Dermatitis
Source Name
Journal of Occupational and Environmental Hygiene
State
PA
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