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- REPORT
CHARACTERISTICS:
DONOR: Alberta Community and Occupational
Health Occupational Health and Safety Division JURISDICTION:
ALBERTA REPORT TITLE: Fatality Investigation Data
Base
INFORMATION ABOUT DECEASED:
NAME: Confidential
SEX: Male AGE: 36 OCCUPATION: pumping and pipeline equipment
operating INDUSTRY: operation of battery tanks Industrial
sector: mines, quarries and oil
ACCIDENT
INFORMATION:
DATE OF ACCIDENT: Confidential PLACE: AREA:
Red Deer region NATURE OF INJURY: asphyxia
(suffocation/drowning) or strangulation TYPE OF
ACCIDENT: contact with gases/fumes by inhalation (lack of
oxygen) SOURCE OF INJURY: hydrogen sulphide
exposure
ACCIDENT DESCRIPTION:
To gauge the level of
crude oil in a battery tank 12 feet high by 20 feet
in diameter, the worker climbed the stairway to a platform near
the top of the tank. He was immediately overcome by H2S gas
escaping from a relief valve. The tank incorporates a gas
recovery system using a venturi (a short, narrow piece of
tubing inserted in a pump or pipeline to permit measurement of
the rate of flow of liquid or air) to draw gas from the tank.
It had been frozen off, allowing gas to accumulate in the tank
and vent to the atmosphere. The worker was not wearing his
respiratory protection apparatus although he had it in his
truck; it was checked and found
serviceable.
INVESTIGATION:
DATE:
1976-03-03 UNSAFE ACT(S): safety device removed or rendered
inoperative UNSAFE CONDITION(S): improper
ventilation INDIRECT CAUSE(S): management's deliberate
disregard of known safe procedures EMPLOYER
ACTION(S): provide instruction, training, supervision to
workers OHSO ACTION(S): inspections OTHER'S
ACTION(S): safe-t-gram/bulletin issued by OHSD, magazine
publicity inquest held (into fatal accident) OHSD education
presentation REGULATION(S): 27076256
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