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Petroleum vapours and
associated substances including hydrogen sulfide may cause
unconsciousness or even death. During and after the opening
of the gauge hatch, all personnel should stand far enough away and
giving due consideration to the wind direction, to minimize the risk of
inhalation of vapours.
Since toxic vapours or oxygen
deficiency cannot be detected safely by smell, visual inspection or
judgment, appropriate precautions should be taken to ensure protection.
Provisions should be made for
appropriate exposure monitoring, protective equipment for personnel and
emergency rescue procedures. When it is necessary, personnel
should have suitable respiratory protection prior to entering the gauge
site and during the gauging procedure. The protection
equipment should be examined for validity and for effective its time of
use.
Physical Characteristics
& Fire Considerations
Personnel who handle
petroleum-related substances, as well as other chemical materials,
should be familiar with their physical and chemical characteristics
including, the potential risk of fire, explosion and reactivity - and
with the potential risk of toxicity and other health hazards with their
respective emergency procedures.
Personnel should be alert to
avoid potential sources of ignition and should keep containers of
materials closed when not in use.
API publications 2217 and 2026
any any applicable regulations should be consulted when sampling
requires entry into confined spaces.
Information regarding
particular materials and conditions should be obtained from the
employer, the manufacturer or the supplier of the material or from the
material safety data sheet and adequately studied before it is handled
or even approached.
Sections
of text taken from API - MPMS Chapter 17 Marine Measurement
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