Authors: J S Sims; J G Hagedorn; P M Ketcham; S G Satterfield; T J Griffin; W L George; H A Fowler; B A Am Ende; H K Hung; R B Bohn; J E Koontz; N S Martys; C E Bouldin; J A Warren; D L Feder; C W Clark; B J Filla; J E Devaney Journal: J Res Natl Inst Stand Technol Date: 2000-12-01