Environmental Engineering Reference
In-Depth Information
1.
Goggles
, Flexible Fitting, Regular Ventilation
2.
Goggles
, Flexible Fitting, Hooded Ventilation
3.
Goggles
, Cushioned Fitting, Rigid Body
4.
Spectacles
, Metal Frame, Without Sideshields
5.
Spectacles
, Plastic Frame, With Sideshields
6.
Spectacles
, Metal-Plastic Frame, With Flat Fold Sideshields
7.
Welding
Goggles
, Eyecup Type, Tinted Lenses
7a.
Chipping
Goggles
, Eyecup Type, Clear Safety Lenses (not illustrated)
8.
Welding
Goggles
, Eyecup Type, Tinted Plate Lens
8a.
Chipping
Goggles
, Coverspec Type, Clear Safety Lenes (not illustrated)
9.
Welding
Goggles
, Coverspec Type, Tinted Plate Lens
10.
Faceshield
(Available with Plastic or Mesh Window, Tinted/Transparent)
11.
Welding Helmets
*“eses are also available without sideshields for limited use requiring only frontal protection.
2
1
3
7
5
6
4
11
9
10
8
FIgure 24.4
Types.of.protective.eyewear..(Courtesy.of.the.United.States.Department.of.
Energy.)
to.the.level.of.radiation.emitted.by.the.laser..If.employees.are.exposed.to.laser.beams,.
then.the.maximum.power.density.or.intensity.that.the.lasers.can.produce.must.be.
determined..Based.on.this.knowledge,.the.lenses.that.will.protect.against.this.maxi-
mum.intensity.must.be.selected..Table 24.3.shows.the.minimum.optical.density.of.
lenses.required.for.various.laser.intensities..Employers.with.lasers.emitting.radiation.
between.two.measures.of.power.density.(or.light.blocking.capability).must.provide.
lenses. that. offer. protection. against. the. higher. of. the. two. intensities.. Every. pair. of.
safety.goggles,.intended.for.use.with.laser.beams,.must.bear.a.label.with.the.follow-
ing.information:
•.
The.laser.wavelengths.for.which.they.are.intended.to.be.used
•.
The.optical.density.of.those.wavelengths
•.
The.visible.light.transmission
Face. shields. are. transparent. sheets. of. plastic. extended. from. the. brow. to. below.
the.chin.across.the.entire.width.of.the.employee's.head..Some.are.polarized.for.glare.
protection.. Choose. face. shields. to. protect. employees'. faces. from. nuisance. dusts.
