Oregon Administrative Rules › Chapter 437 - DEPARTMENT OF CONSUMER AND BUSINESS SERVICES, OREGON OCCUPATIONAL SAFETY AND HEALTH DIVISION › Division 2 - GENERAL OCCUPATIONAL SAFETY AND HEALTH RULES › Section 437-002-1054 - Definitions

Current through Register Vol. 63, No. 7, July 1, 2024
For the purposes of this subdivision the following definitions
				apply:
(1) Action level means a
			 concentration of airborne respirable crystalline silica of 25 ?g/m3, calculated
			 as an 8-hour TWA.
(2) Competent
			 person means an individual who is capable of identifying existing and
			 foreseeable respirable crystalline silica hazards in the workplace and who has
			 authorization to take prompt corrective measures to eliminate or minimize them.
			 The competent person must have the knowledge and ability necessary to fulfill
			 the responsibilities set forth in this subdivision.
(3) Employee exposure means the exposure to
			 airborne respirable crystalline silica that would occur if the employee were
			 not using a respirator.
(4)
			 High-efficiency particulate air (HEPA) filter means a filter that is at least
			 99.97 percent efficient in removing monodispersed particles of 0.3 micrometers
			 in diameter.
(5) Objective data
			 means information, such as air monitoring data from industry-wide surveys or
			 calculations based on the composition of a substance, demonstrating employee
			 exposure to respirable crystalline silica associated with a particular product
			 or material or a specific process, task, or activity. The data must reflect
			 workplace conditions closely resembling or with a higher exposure potential
			 than the processes, types of material, control methods, work practices, and
			 environmental conditions in the employer's current operations.
(6) Permissible exposure limit (PEL) means a
			 concentration of airborne respirable crystalline silica of 50 ?g/m3, calculated
			 as an 8-hour TWA.
(7) Physician or
			 other licensed health care professional (PLHCP) means an individual whose
			 legally permitted scope of practice (i.e., license, registration, or
			 certification) allows him or her to independently provide or be delegated the
			 responsibility to provide some or all of the particular health care services
			 required by 437-002-1062.
(8)
			 Regulated area means an area, demarcated by the employer, where an employee's
			 exposure to airborne concentrations of respirable crystalline silica exceeds,
			 or can reasonably be expected to exceed, the PEL.
(9) Respirable crystalline silica means
			 quartz, cristobalite, and/or tridymite contained in airborne particles that are
			 determined to be respirable by a sampling device designed to meet the
			 characteristics for respirable-particle size-selective samplers specified in
			 the International Organization for Standardization (ISO) 7708:1995: Air Quality
			 - Particle Size Fraction Definitions for Health-Related Sampling.
(10) Specialist means an American Board
			 Certified Specialist in Pulmonary Disease or an American Board Certified
			 Specialist in Occupational Medicine.
Stat. Auth.: ORS
				  654.025(2),
				  656.726(4).
Stats. Implemented: ORS
				  654.001-
				  654.295