Glossary

ABS
.Acrylonitrile Butadiene Styrene is a common general purpose plastic.

Acetate
Cellulose Acetate is a plastic that is available in polished optical sheet. Products made from this material should not be used for extremely low or high temperature applications.

ANSI
American National Standards Institute, Inc.

ANSI Z87.1
American National Standard practice for occupational and educational eye and face protection.

Anti-Fog.
A coating on a window that prevents fogging or misting in a wide range of temperatures and conditions.

Bump cap
A light weight cap that does not meet the test requirements of a Hard Cap or Hard Hat.

Cam-Lock
The fastener on the protective device that attaches the window.

Cap bracket
A device that allows the mounting of a window to a hard cap.

Chin protector
That portion of a face shield that offers protection to a wearer's chin, or lower face and neck.

Cover lens
An expendable pane of clear material to protect a window from damage.

Cover plate
The outer expendable cover lens for a welding helmet or goggle.

Dark green
ANSI Z87.1 defines dark green as a window color transmitting visible light at 14% +-4%.

Die cut
A fabrication process that cuts parts from sheets of plastic or other materials.

Dielectric
A nonconductor of electrical current.

There are no definitions under the letter E

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Faceshield
A protective device commonly intended to shield the wearer's face, or portions thereof, in addition to the eyes, from certain hazards. Faceshields are secondary protectors and shall be used only with primary eye protection. A faceshield includes a headgear, or other mounting device, and window in combination.

Flat
Refers to the shape of the window. A flat window must be wrapped around the spark guard and will not provide the fit of a formed window. It is not recommended to use .060 Lexan Polycarbonate as a flat window.

Formed
Refers to the shape of the window. A formed window conforms to the shape of the spark guard or other attachment device and is considered superior in fit, feel and function.

Gauge
The thickness specified as per the following method. Example gauge = .060"

Hard Cap
A safety helmet that has a front brim.

Hard Hat
A safety helmet that has a brim which extends around the helmet.

Hat Bracket
A device that allows the window to be mounted to a hard hat.

HDPE
High Density Polyethylene is a material used in opaque general purpose components.

Infrared radiation
As referenced in the ANSI Z87.1 standard, the portion of the electromagnetic spectrum with wavelengths from 780 to 2,000 nanometers.

Injection Molded
A fabrication process that produces products by filling a mold with molten plastic at high pressure.

There are no definitions under the letter J

There are no definitions under the letter K

Lexan
Polycarbonate material manufactured by General Electric. This plastic is characterized by toughness, heat resistance and optical quality.

Medium Green
ANSI Z87.1 defines medium green as a window color transmitting visible light at 23% +-4%.

Metalized
A coating on the front of a window that is designed to reflect UV, IR and reduce visible light.

Nanometer (nm)
One billionth of a meter. This is the standard measurement for describing wavelengths of light.

Not Warranted Shatterproof
A warning statement that applies to all face and eye protective devices. This statement notes this potential for any product.

There are no definitions for the letter O

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PCTG Polycyclohexylene Dimethylene Terephthalate
This plastic is used for light duty industrial face shields that require frequent replacement.

PETG Polyethylene Terephthalate Glycol Comonomer
This plastic is typically used for packaging applications such as blister packs and bottles.

PDS
Product Data Sheet is a one page full description and specification of each product available from Paulson Mfg Corp.

Primary protection
A device such as safety spectacles or goggles which may be worn alone or in conjunction with a secondary protector. (See secondary protector)

Propionate Cellulose Propionate
Is a plastic used for injection molded optical windows that is used for high performance applications.

There are no definitions under the letter Q

Radiant heat
See infrared radiation.

Safety/Cover Plate
A lens that can be used interchangeably as a cover plate and or a safety plate in welding applications.

Secondary protection
A device which shall be worn only in conjunction with a primary protector. Faceshields are classified as secondary protection.

Shade 5
ANSI Z87.1 defines shade 5 as a lens that meets specific UV, IR and visible light requirements. The visible light requirement is a maximum of 3.16% and a minimum of 1.18%.

Spark Guard
The portion of a headgear that offers protection to a wearer's forehead. Also known as a crown protector.

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There are no definitions for the letter T

Ultraviolet radiation
As referenced in the ANSI Z87.1 standard, the portion of the electromagnetic spectrum with wavelengths from 200 to 380 nanometers.

Visible Light
The fraction of light (380-780 nanometers) passing through a lens. ANSI Z87.1 describes visible light as luminous transmittance.

There are no definitions for the letter W

There are no definitions for the letter X

There are no definitions for the letter Y

There are no definitions for the letter Z