This chart gives dimensional-size data for American National Standard Schedule 40 Welded and Seamless Steel Pipe. Related: 1  Schedule 80 Steel Pipe Sizes & Dimensions ANSI. 2  Schedule 40 Plastic PVC, CPVC Pipe Sizes & Dimensions.
Juvenile Rheumatoid Arthritis definition, categories, type and other relevant information provided by All Acronyms. JRA stands for Juvenile Rheumatoid Arthritis Search for acronyms, abbreviations,
(Juvenile in this context refers to an onset before age 16, idiopathic refers to a condition with no defined cause, and arthritis is the inflammation of the synovium of a joint.). JIA is an autoimmune, non-infective, inflammatory joint disease of more than 6 weeks duration in children less than 16 years of age.uvenile idiopathic arthritis (JIA) , also known as juvenile rheumatoid arthritis (JRA), is the most common form of arthritis in children and adolescents.