Occupational Protective Eyewear Flashcards
Industrial Eyewear Requirements
*OSHA regulates industries
* Adopted ANSI Z87.1
*all industrial eye & face protectors will meet requirements of Z87.1
*spectacle frame and lens must both meet Z87.1 standards
*industrial lenses in a dress frame or dress ophthalmic lenses in an industrial frame do not meet the standard
OSHA
*has oversight in workplace for worker health and safety
*federal and state OSHA’s may inspect, cite and fine employers
*action may be spontaneous or in response to whistle blower complaint
*requirements of employer
*perform work hazard assessment
*equipment selection
*proper training
* proper personal protective equipment (PPE)
* proper size
*intended use
PROTECTIVE EYEWEAR
protect against
*flying particles
* molten metal
*liquid chemicals
* acids or caustic liquids
* chemical gases or vapors
*injurious light radiation
* have proper side protection
* have proper prescription
* comply with Z87.1 standards
Who Wears Industrial Safety Eyewear and its requirements?
*OSHA 29 CFR 1910.133–(a) General
Requirements.
*(1) Each affected employee shall use appropriate eye or face protection when exposed to eye or face hazards
2) side protection from flying objects, can be detachable depending on reqs
3) eye protection incorporates Rx
4) eye and face PPE distinctly marked
5) affected employee use filter lenses that have shade number
ANSI Z87.1 (2020) requirements
lens thickness
* most prescription safety Rx: 3.0mm ct/et
*for high plus over +3.00DS, edge may be reduced to 2.5mm if it meets impact test
* plano prescription safety eyewear no less than 3.0mm thick or more than 3.8mm thick
*lens impact industrial DBT
* 1” (2.4 ounces) steel ball dropped from 50” onto lens horizontal front surface; lens shall not break
*lens retention test
*lens must not be displaced from frame
ANSI Z87.1 Lenses
basic impact - glass, CR 39
* 3.0mm thickness minimum
* all glass lenses are to be individually tested; plastic lenses batch tested
* pass the industrial DBT (1” steel ball at height of 50”)
high impact - Polycarbonate, Trivex
* not be less than 2.0mm thick
* must have the “+” mark on lens convex surface
* to qualify for the “+” mark
* must pass a high velocity impact test: 1⁄4” steel ball shot at lens at 150 fps
* no detachment, no fracture, no displacement, no penetration
* Rx lenses are batch tested
* Note: for plano high impact lenses, no thickness requirement
lens marking
non plano basic impact: w2.5
non planno high impact: w+2.5
ansi needle test
*a needle (135x17) must not penetrate lens surface
*prescription follows Z80.1 tolerances
*cannot mix safety lens with dress frame or vice-versa
ansi lens tint
- clear lenses generally recommended but tint not completely restricted
- regarded as protective filter, not cosmetic tint
- if tint prescribed, must meet Z87.1 standards for minimum and maximum visible light transmittance and maximum UV and IR radiation transmittance
- transmission between right and left lens must be within 10% of each other
- photochromic lenses not necessarily disallowed or officially allowed; lenses must be monogrammed with letter “v”
- lenses that are tinted for special purpose situations must be monogrammed with the letter “S”
ansi shade number
- tint shade number must be clearly identified
- shade #: 7/3 OD + 1
- higher shade#: darker lenses; usually green color to filter UV/IR
ABSORPTIVE LENSES– occupational use
*designed to protect from potential chemical, mechanical and radiation damage or injury
*must absorb both UV and IR radiation
*transmit primarily in the mid-spectrum
*lenses are bluish green or greenish yellow
*level of transmittance in mid spectrum must be appropriate for task
*occupations: welders, lasers, glassblowers, blast furnace operators
ansi side shields
*side shields: permanent, detachable, plastic, wire mesh, plastic mesh
*side shields required when there is hazard from flying objects
*basically all safety eyewear should have a side shield
*face shields–clear, tinted
*goggles/face masks (respirator)
ansi frame
- must have “lip” behind lens to prevent lens displacement towards patient
*lenses inserted from front
*must bear Z87-2 logo (for non-plano lenses)
*Plano lenses in frame (Z87 or Z87.1)
*must have A, DBL and overall temple length identified on frame
*Z87-2 indicates frame also meets high impact testing
high mass, low velocity test
*frame with 2.0mm plano lenses mounted on
special headform
* 17.6 oz (1” diameter) pointed projectile
dropped through a 51.2” tube
*frame and lens must remain intact
* no contact may be made with head form
meet low mass, high velocity
- frame with 2.0mm plano lenses mounted on special head form
- frame is shot from front and side with 1⁄4” steel ball traveling at velocity of 150fps
- upon impact no part of the frame is to contact the eye on the head form
- no parts or fragments may be ejected
- meet flammability, corrosion standard
* Per ASTM test method, D635-98
* Material shall not burn at a rate greater than 76 mm (3 in) per minute
* Material boiled in 10% NaCl
