New York Codes, Rules and Regulations › Title 12 - DEPARTMENT OF LABOR › Chapter XI - Division Of Safety And Health › Subchapter A - Public Employees' Safety And Health › Part 800 - Public Employees' Occupational Safety And Health Standards › Section 800.5 - Permissible exposure limits

Current through Register Vol. 46, No. 28, July 10, 2024
An employee 's exposure to any substance listed in Table
					 Z-1-A, Z-2, or Z-3 of this section shall be limited in accordance with the
					 requirements of the following paragraphs of this section.
(a)
TABLE Z-1-A.
(1) Substances in transitional limits columns
				  with limits preceded by " C"-ceiling values. An employee's exposure to any
				  substance in Table Z-1-A under the transitional limits column, the exposure
				  limit of which is preceded by a "C", shall at no time exceed the exposure limit
				  given for that material in Table Z-1-A under the transitional limits
				  columns.
(2) Other substances in
				  transitional limits columns-8-hour time weighted average. An employee's
				  exposure to any substance in table Z-1-A under the transitional limits columns,
				  the exposure limit of which is not preceded by a "C", shall not exceed the
				  8-hour time weighted average given for that substance in table Z-1-A under the
				  transitional limits columns in any 8-hour work shift of a 40-hour work
				  week.
(3) Final rule limits
				  columns. An employee's exposure to any substance listed in table Z-1-A shall
				  not exceed the time weighted average (TWA), short term exposure limit (STEL),
				  and ceiling limit specified for that substance in table Z-1-A under the final
				  limits columns.
(4) Skin
				  designation. To prevent or reduce skin absorption, an employee's skin exposure
				  to substances listed in table Z-1-A with an "X" in one or both of the skin
				  designation columns following the substance name shall be prevented or reduced
				  to the extent necessary in the circumstances through the use of gloves,
				  coveralls, goggles, or other appropriate personal protective equipment,
				  engineering controls or work practices.
(5) Definitions. The following definitions
				  are applicable to the final rule limits columns of table Z-1-A:
(i)
Time weighted average
				  (TWA)
is the employee's average airborne exposure in any 8-hour work
				  shift of a 40-hour work week which shall not be exceeded.
(ii)
Short term exposure limit
				  (STEL)
is the employee's 15-minute time weighted average exposure
				  which shall not be exceeded at any time during a work day unless another time
				  limit is specified in a parenthetical notation below the limit. If another time
				  period is specified, the time weighted average exposure over that time period
				  shall not be exceeded at any time during the working day.
(iii)
Ceiling
is the
				  employee's exposure which shall not be exceeded during any part of the work
				  day. If instantaneous monitoring is not feasible, then the ceiling shall be
				  assessed as a 15-minute time weighted average exposure which shall not be
				  exceeded at any time over a working day.
(6) Additional definition. The terms
substance, air contaminant,
and
material
are
				  equivalent in meaning for 29
				  CFR 1910.1000. ( 29 CFR 1910  was
				  previously filed with the Secretary of State on February 2, 1988, under File
				  Number 240. It is available for inspection at the NYS Department of State and
				  the NYS Department of Labor, and can be obtained from the U.S. Government
				  Printing Office in Federal Register, Volume 52, No. 176, pp. 34460-34578,
				  September 11, 1987).