Frame Test
The frame, body, housing or headgear components are tested by installing "test" lenses that are strong enough to allow high mass and high velocity tests to be conducted. These components must have the integrity to comply with the tests regardless of the actual lens that will be in the model. The high velocity and high mass test methods are carried over from the 1989 Standard, but in the high velocity test, no failures are allowed. Spectacle frames intended to house prescription lenses shall meet the same criteria. Lateral coverage requirements have been increased to provide expanded rearward protection which primarily affects spectacles.
 
Frame Marking
All spectacle frames and temples, goggle bodies or housings, faceshield headgear and welding helmet components shall carry a permanent and legible mark or logo identifying the manufacturer. In addition, they are to be marked "Z87". Spectacle frames intended to hold prescription lenses are to be marked "Z87-2", and shall meet the requirements of Z80.5- 1997. For those products classified as having non-removable lenses, the product need carry only one marking. For spectacles, the Z87 (basic impact level) or Z87+ (high impact level) mark may be placed on the frame or temple. For goggles, faceshields or welding helmets, the Z87 or Z87+ mark may be applied to any component including the lens.
 
Lens Test
Personal eye protectors are classified, based on performance, as either basic or high impact models. They are to be tested as complete products as they will be offered to the user, and there is no distinction made based on whether the product has removable or nonremovable lenses. Basic impact models shall be capable of passing the 1 inch drop ball test and high impact models shall comply with high mass and high velocity impact criteria. The basic vs. high level impact requirements now fully apply to prescription spectacles. The penetration test continues to apply to plano plastic lenses, for all protectors, whether they are of the basic impact or high impact type.
 
Lens Marking
Removable lenses must be marked in a permanent and legible manner. All lenses must bear a mark or logo identifying the manufacturer. For spectacles with removable lenses, basic impact lenses require no additional mark related to Z87, but high impact lenses require a "+" mark indicating the elevated impact performance. For all other product categories, non-removable lenses, windows or filters require the manufacturer's mark or logo. The product need carry only one marking. Basic impact lenses shall be marked with "Z87" and high impact lenses shall be marked "Z87+". Special purpose lenses and photochromic lenses continue to carry "S" and "V" markings respectively
 
Optical Requirements
Optical requirements for plano spectacles are specified in the areas of refractive power, prismatic power and definition. Haze for lens components shall not exceed 3%. Transmittance requirements are specified for clear, tinted and shaded filter lenses and windows.
 
 
Dr David Benkle and Staff Provide Quality Eye
Care and Personalized Service You Can Trust

Eye Care Optometry

BROOKSIDE HOURS: 
MON 9:00 - 5:00
TUE 9:00 - 5:30
WED 9:00 - 5:00
THU 9:00 - 6:00
FRI 9:00 - 5:00
DOWNTOWN HOURS: 
MON 9:00 - 5:00
TUE 8:30 - 4:30
WED 9:00 - 5:00
THU 8:30 - 4:30
FRI 8:30 - 4:30





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Eye Doctor Stockton, California
Dr. Benkle and his caring eye staff provide personalized 'One on One' eye care. The Brookside Office and Downtown Optometry in Stockton CA has earned their reputations of providing the finest in eye healthcare, eyewear and contact lenses.

We will make every effort to take a complete approach to your eye care.
We take the time to not only understand your eye health and visual needs, but your general health, lifestyle, and dietary habits as well. This is somewhat rare in health care today, but we think you will find it to be a refreshing change.

"We are proud of our exceptional customer service, lifelong education and the best eye health care possible."
- Dr. David Benkle

Request your Eye health and Vision appointment today with our experienced eye care providers at one of our Stockton California Optometrist offices and give your vision the level of care and attention it deserves.

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Brookside Office 3461 Brookside Rd. Suite A1 Stockton, CA 95219 Phone: (209) 951-2020 Fax: (209) 208-1600
Downtown Optometry 319 E. Weber Ave. Stockton, CA 95202 Phone: (209) 465-5047 Fax: (209) 465-2610

Dr. Benkle proudly serves Stockton and the areas of Lincoln Village, August, Stonewood, Morada, Kennedy, Garden Acres, French Camp, Holt, Manteca, Lathrop, Lodi, Victor and Woodbridge

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