Use a car seat with a harness for as long as possible, and keep it rear-facing for as long as possible (until your child reaches the manufacturer's height or weight limit). Keep your older child in a booster seat until at least 8 years of age and 57 inches tall. Have your child ride in a rear seat until age 13.
Flame atomic absorption spectroscopy instrument. Atomic absorption spectroscopy (AAS) is a spectroanalytical procedure for the quantitative determination of chemical elements using the absorption of optical radiation (light) by free atoms in the gaseous state.
(2) Short for Audio Engineering Society, AES is a professional standards organization that is devoted exclusively to audio technology. Founded in 1948, AES is an international organization with a mission of uniting audio engineers, creative artists, scientists and students. AES currently has over 14,000 members and offers guest speakers, technical tours, demonstration, scientific presentations and exhibitions.