Prescription lens mounting qualification

6.2.6 Prescription Lens Mounting Qualification For each type of lens retention system offered for sale, one set of 10 complete devices shall be tested. (6) High Velocity (4) High Mass (Sec. 9.11.3.1 Lens minimum thickness 2.0mm +0.2mm 0.0mm thick at their thinnest point, and have plano power.) For each lens retention system being qualified, one lens/coating combination (that has previously passed the Lens Material Qualification) shall be tested to the requirements of 6.2.6 –Prescription Lens Mounting Qualification. (10 frames are needed for each lens retention system being qualified) Lens retention systems are: • Full rim eyewire frames that require bevel designs like a “safety V bevel and other lens bevels” for metal frames. • Full rim eyewire frames that require bevel designs like a “safety V bevel and other lens bevels” for plastic frames. • Grooved metal frame style (T-Eyewire) • Grooved semi rimless with half metal rim and suspension cord mountings • Three-piece rimless drill mount • Any mounting that is configured differently than described above to secure the lens and that is design/process dependent such that it requires a different lens beveling process or mounting technique. Note: All frames shall have the sideshields installed before sending them in for qualification testing. *All frames must meet section 5.2.5 Minimum Coverage Area The eyewire and lens shall cover in plane view an area of not less than 40 mm (1.57 in.) in width and 33 mm (1.30 in.) in height (elliptical) in front of each eye, centered on the geometrical center of the lens. Frame Information: Frame manufacturers marking product with Z87-2+ must be able to show compliance to the following sections of the standard: • 5.2 Physical Requirements • 5.2.1 Drop Ball Impact Resistance • 5.2.3 Ignition • 5.2.4 Corrosion Resistance of Metal Components • 5.2.5 Minimum Coverage Area • 5.4 Markings • 5.5.4 Frames for Replaceable or Removable Lenses • 6.1.3 Lateral (Side) Coverage • 6.2.2 High Mass Impact • 6.2.3 High Velocity Impact • 6.2.6 Prescription Lens Mounting Qualification *Section 2.3.5 of ANSI Z87.1 – 2010 states: “The protector manufacturer shall provide test results to the purchaser upon request”.