GG-G-531C
3.
REQUIREMENTS
3. 1 Standard commercial product. Except as modified by the provisions of this specification, goggles
and spectacles shall be the manufacturer's standard commercial product.
3.2 Materials. Lenses and frames of goggles and spectacles covered by this specification shall be of
.
suitable plastics. Hinges, fasteners, and reinforcements may be fabricated of suitable metals.
3.2. 1 Disinfection, Materials used in goggles and spectacles shall show no sign of deterioration or
discoloration when subjected to the disinfection procedure described in 4,4.
3. 2.2 Corrosion resistance. Metal parts shall show no signs of corrosion when tested in accordance
with 4.4.
Plastic parts shall show not more than 5 percent water absorption when tested
3. 2.3 Water absorption.
in accordance with 4.4.
3. 2.4 Flammability. The rate of flame-propagation for plastic components shall be 24 seconds per
inch or less when tested in accordance with 4.4,
3.3 Type I. Goggles shall consist of a plastic frame or mask, plastic lens, and adjustable headband
of a suitable elastic material such as braided elastic, rubber strap, or other similar materials.
Goggles shall be designed to generally contour to the shape of the face, covering completely the eye
sockets and the facial area surrounding the eyes, offering both frontal and side protection to the wearer.
Goggles shall be capable of being worn over conventional spectacles with no decrease in protection
offered. The lens portion of the goggles shall be not less than 5-3/8 inches long (outside measurement)
at the longest dimension and not less than 2-3 / 16 inches (outside measurement) at the widest dimension.
Goggles shall be furnished with either integral or replaceable lens at the manufacturer!s option, unless
otherwise specified (see 6. 2). Weight of complete goggles shall not exceed 3.0 ounces.
3.3, 1 Frame or mask. Frames or masks shall be clear, translucent, colored, or opaque, as
specified (see 6. 2). They shall be sufficiently rigid to hold the lens securely in place before the
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wearer's eyes, Edges which contact the wearer s face shall be rounded. Ventilation openings shall be
provided to permit circulation of air through the goggles. These openings shall not permit the passage
of a sphere 5/64 inch in diameter. Methods of securing the lens in the frame or mask shall be sufficient
to securely hold the lens in place when the fracture resistance test specified in 4, 4 is conducted.
3,3.2 Lenses, Lenses shall not chip, fracture, be pentrated, or shatter when subjected to the impact
resistance test in 4.4.
3.3.2. 1 Grade A, Grade A lenses, when tested in accordance with 4, 5, shall show no visible fog,
The anti-fogging treatment shall not be affected when used or cleaned according to the manufacturers
directions.
3. 3.2.2 Class 1. Lenses of class 1 goggles shall be of clear plastic with a luminous transmittance
of not less than 85 percent when tested in accordance with 4, 4. They shall be free from striae, waves,
and other visible defects which might impair optical qualities. Lenses shall be not less than O. 050
inch thick,
3. 3.2,3 Class 2. Lenses of class 2 goggles shall be of antiglare design. They shall meet require-
ments for class 1 lenses except that they shall be of colored plastic capable of reducing harmless glare
and absorbing ultraviolet radiation, Specifically, class 2 lenses shall be capable of meeting the color
limits, traffic signal transmittance e, and ultraviolet transmittance requirements for lenses suitable
for daylight driving as detailed below when tested in accordance with
(a) Color limits - values of X and Y shall not fall outside prescribed regions on the
CIE ( 1931) standard chromaticity diagram in ANSI Z80. 3.
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