This specification covers acrylonitrile-butadiene-styrene (ABS) Schedule 40 pipe fittings. Included are requirements for materials, workmanship, dimensions, and burst pressure. The text of this specification references notes, footnotes, and appendixes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the specification. The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only. The following safety hazards caveat pertains only to the test method portion, Section 7, of this specification. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.