Controlled Substances Act. An Act to amend the Public Health Service Act and other laws to provide increased research into, and prevention of, drug abuse and drug dependence; to provide for treatment and rehabilitation of drug abusers and drug dependent persons; and to strengthen existing law enforcement authority in the field of drug abuse.
What Is Polycarbonate ? The Stuff They Use For The Lenses In Sunglasses, Safety Glasses And Goggles. Polycarbonates are a particular group of thermoplastics. They are easily worked, molded, and thermoformed; as such, these plastics are very widely used in modern manufacturing.
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.