Period Costs. Period costs are expenses that are easier to attribute to times and accounting periods than actual production processes or finished goods. Typically, managerial accountant want to classify expenses in categories that can improve operations. Manufactures tend to focus on functional classifications.
The amber color of these impact-resistant polycarbonate lenses block short-wavelength blue light and 100% of ultraviolet (UV) light, thus providing additional protection against cataract formation and the development of macular degeneration, while increasing contrast on both sunny and bright hazy days.
Prescription Lenses(called non-plano in the standard) Basic Impact Non-plano Lenses ï· Shall be capable of resisting impact from a 25.4mm (1 in.) steel ball dropped from a height of 127mm (50 in.). The lens shall not fracture. Prescription Lenses(called non-plano in the standard) Basic Impact Non-plano Lenses ï· Shall be capable of resisting impact from a 25.4mm (1 in.) steel ball dropped from a height of 127mm (50 in.). The lens shall not fracture. ï· Glass lenses shall be tested 100%. ï· Plastic lenses shall be statistically sample tested.