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In-depth survey report: control technology for ethylene oxide sterilization in hospitals at Bethesda Hospital, Cincinnati, Ohio, report no. CT-146-11b.

Authors
Mortimer-VD Jr.; Kercher-SL
Source
NIOSH 1985 Jun; :1-34
NIOSHTIC No.
00150856
Abstract
An indepth survey of control technology for ethylene-oxide (75218) sterilization was conducted at Bethesda Hospital (SIC-8062), Cincinnati, Ohio in June, 1984. Industrial hygiene sampling for ethylene-oxide was performed. Engineering controls consisted of local exhaust and general ventilation, isolation, drain control by means of a ventilated air gap, and two vacuum purges and a 20 minute air flush on the sterilizer cycle. Full shift ethylene-oxide concentrations averaged less than 0.1 part per million (ppm). Short term exposures while transferring loads from the sterilizers to the aerator did not exceed 5ppm. The OSHA time weighted standard for ethylene-oxide is 1ppm. Preventive maintenance on the sterilization equipment was performed by an outside contractor. Some personal monitoring for ethylene-oxide, averaging once a year, was conducted. It was noted that the operators manually transferred items from the sterilizer cart into the aerator. The authors conclude that full shift and short period exposures to ethylene-oxide are well controlled. The exposures to the sterilizer operators can be controlled further by their not manually lifting the items from the sterilizer cart into the aerator. Sensors and alarm devices should be installed on the ventilation systems.
Keywords
NIOSH-Author; NIOSH-Survey; Control-technology; Field-Study; Medical-facilities; Health-standards; Gas-mixtures; Work-analysis; Exposure-methods; Work-areas; Quantitative-analysis; Analytical-models; Region-5; CT-146-11b
CAS No.
75-21-8
Publication Date
19850601
Document Type
Field Studies; Control Technology
Fiscal Year
1985
NTIS Accession No.
PB87-164513
NTIS Price
A04
Identifying No.
CT-146-11b
NIOSH Division
DPSE
Priority Area
Control-technology
SIC Code
8062
Source Name
National Institute for Occupational Safety and Health
State
OH
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