Hawaii Administrative Rules › Title 12 - DEPARTMENT OF LABOR AND INDUSTRIAL RELATIONS › Subtitle 8 - HAWAII OCCUPATIONAL SAFETY AND HEALTH DIVISION › Part 2 - GENERAL INDUSTRY STANDARDS › Chapter 60 - GENERAL SAFETY AND HEALTH REQUIREMENTS › Exhibit A

Current through June, 2024
Footnotes to Exhibit A:
Air Contaminant Rule Limits are the most restrictive of the
					 federal limits, ACGIH limits and existing HIOSH limits.
* The PEL-TWA's are 7- to 8-hour TWA's, unless otherwise
					 noted.
** Unless otherwise noted, employers in General Industry
					 (i.e., those covered by Part 2 of the HIOSH standards) may use any combination
					 of controls to achieve these limits, until December 31, 1992.
a. STEL duration is for 15 minutes, unless
				  otherwise noted.
b. The CAS number
				  is for information only. Enforcement is based on the substance name. For an
				  entry covering more than one metal compound measured as the metal, the CAS
				  number for the metal is given--not the CAS numbers for the individual
				  compounds.
c. Ppm are in parts of
				  vapor or gas per million parts of contaminated air by volume at
				  25oC and 760 torr.
d. Mg/m3 are
				  approximate milligrams of substance per cubic meter of air.
e. The final benzene standard in section
				  1910.1028 applies to all occupational exposures to benzene except some sub
				  segments of industry where exposures are consistently under the action level
				  (e.g., distribution and sale of fuels, sealed containers and pipelines, coke
				  production, oil and gas drilling and production, natural gas processing, and
				  the percentage exclusion for liquid mixtures); for the excepted sub segments,
				  the benzene limits in Exhibit B apply.
f. Coal tar pitch volatiles mean the fused
				  polycyclic hydrocarbons that volatilize from the distillation residues of coal,
				  petroleum, (excluding asphalt, CAS 8052-42-4 and CAS 64742-93-4 ), wood, and
				  other organic matter.
g. Cotton
				  dust refers to lint-free dust as measured by the vertical elutriator,
				  cotton-dust sampler described in the Transactions of the National Conference on
				  Dust, p. 33 by J.R. Lynch, (May 2, 1970). The PEL-TWA in the exhibit applies to
				  respirable dust as measured by a vertical elutriator cotton dust sampler or
				  equivalent instrument. The time-weighted average applies to the cotton waste
				  processing operations of waste cycling (sorting, blending, cleaning, and
				  willowing) and garreting. See also section 1910.1043.
h. Fibrous glass dust means particles <7um
				  in diameter.
i. Oil mist as sampled
				  by a method that does not collect vapor.
j. Compliance with the Subtilisins PEL-TWA is
				  assessed by sampling with a high volume sampler (600-800 liters per minute) for
				  at least 60 minutes,
k. For control
				  of tetraethyl lead and tetramethyl lead in general room air, biologic
				  monitoring is essential for personnel monitoring,
l. Most Occupational exposures to EGDN
				  actually involve mixtures of EGDN and nitroglycerin (NG). This EGDN:NG mixture
				  has a PEL-STEL of 0.1 mg/m3.
m. See Exhibit B from the exposure limits for
				  any operations or sectors where the exposure limits in §1910.1026 are stayed or
				  otherwise not in effect,
n. If the
				  exposure limit in §1910.1026 is stayed or is otherwise not in effect, the
				  exposure limit is ceiling of 0.1 mg/m3