Wash. Admin. Code § 296-307-65204 - Follow these alternate entry procedures for permit-required confined spaces
(1) The employer
must use the following alternate entry procedures: entrance cover.
(a) When entrance covers are removed,
promptly guard the opening with a railing, temporary cover, or other temporary
barrier to prevent accidental falls through the opening and protect entrants
from objects falling into the space.
(b) Certify that preentry measures have been
taken (such as safe removal of the cover and having protection needed to gather
preentry data), with the date, location of the space, and signature of the
person certifying.
(2)
The employer must make the preentry certification available before entry to
each entrant.
(a) Before an employee enters
the confined space, test the internal atmosphere with a calibrated,
direct-reading instrument for all of the following, in this order:
(i) Oxygen content.
(ii) Flammable gases and vapors.
(iii) Potential toxic air
contaminants.
(b)
Provide entrants, or their authorized representatives, with an opportunity to
observe the preentry and periodic testing.
(c) Make sure the atmosphere within the space
is not hazardous when entrants are present.
(d) Use continuous forced air ventilation, as
follows:
(i) Wait until the forced air
ventilation has removed any hazardous atmosphere before allowing entrants into
the space.
(ii) Direct forced air
ventilation toward the immediate areas where employees are, or will be, and
continue ventilation until all employees have left the space.
(3) The employer must
provide the air supply from a clean source and make sure it does not increase
hazards in the space.
(a) Test the atmosphere
within the space as needed to make sure hazards do not accumulate.
(b) If a hazardous atmosphere is detected
during entry, do all of the following:
(i)
Evacuate employees from the space immediately.
(ii) Evaluate the space to determine how the
hazardous atmosphere developed.
(iii) Implement measures to protect employees
from the hazardous atmosphere before continuing the entry operation.
(iv) Verify the space is safe for entry
before continuing the entry operation.
Notes
Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. 05-01-166, § 296-307-65204, filed 12/21/04, effective 4/2/05.
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