Cal. Code Regs. Tit. 8, § 6085 - Decompression of Employees
(a)
Decompression tables. Decompression shall be in accordance with the following
specified decompression tables contained in Volume 2, Chapter 9 of the U.S.
Navy Diving Manual, Revision 6, April 15, 2008, which is hereby incorporated by
reference.
(1) No-Decompression Limits and
Repetitive Group Designation Table for No-Decompression Air Dives -- Table 9-7.
This table shall be used to determine the no-decompression limits and the
repetitive group designators for work in a compressed air environment that does
not require decompression.
(2) Air
Decompression Table -- Table 9-9. This table shall be used to determine the
decompression schedules and repetitive group designators for work in a
compressed air environment that requires decompression.
(3) Residual Nitrogen Timetable for
Repetitive Air Dives -- Table 9-8. This table shall be used to determine the
Residual Nitrogen Time when an employee who has some residual nitrogen in
his/her system begins work in a compressed air environment.
(4) Sea Level Equivalent Depth -- Table 9-4.
This table shall be used to correct the sea level decompression tables for use
at altitudes of 1,000 feet above sea level and higher.
(5) Repetitive Groups Associated with Initial
Ascent to Altitude -- Table 9-5. This table shall be used to adjust
decompression schedules when an employee who is not fully equilibrated at
altitude begins work in a compressed air environment.
(6) Required Surface Interval Before Ascent
to Altitude After Diving -- Table 9-6. This table shall be used to determine
when it is safe for an employee to fly or ascend to higher altitude after
performing work in a compressed air environment.
(b) Use of decompression tables. The
following provisions apply to the use of the U. S. Navy decompression tables
referenced in subsection (a):
(1) General. The
decompression tables shall be used in accordance with the applicable rules,
instructions, and examples provided in Chapter 9 of the referenced U.S. Navy
Diving Manual. The terms, definitions and units of measure used in the
referenced Diving Manual that normally refer to diving work, such as standard
feet of water, diver, descent time, bottom time, dive, depth, and surface,
shall apply to work in compressed air environments in a manner that is
consistent with applicable scientific principles. When converting "Feet of Sea
Water" (FSW) to pounds per square inch (gauge) (psi(g)), a conversion factor of
0.4454 psi(g) per 1.0 FSW shall be used.
(2) Air Decompression Table -- Table 9-9.
(A) The table shall not be used for pressures
exceeding 50 psi(g).
(B) The table
shall not be used for pressures greater than 190 FSW.
(C) A gas mix of air and oxygen
(AIR/O2) shall be used for decompression when the table
indicates a gas mix of air (AIR) is permitted but AIR/O2
is recommended.
(D) Surface
decompression (decanting) is prohibited.
(E) The table shall not be used for a bottom
time and pressure that is designated an Exceptional Exposure in the
table.
(F) The compression rate
shall be in accordance with Section
6080(a).
EXCEPTION: The provisions of subsections (a) and (b)(2) do not apply in an emergency provided that employees are decompressed in accordance with decompression tables and procedures recommended by the supervising physician.
Notes
2. Amendment of section heading and section filed 3-10-2010; operative 4-9-2010 (Register 2010, No. 11).
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
2. Amendment of section heading and section filed 3-10-2010; operative 4-9-2010 (Register 2010, No. 11).
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