1.1 This specification covers only that equipment commonly used for the sampling of water and steam in closed conduits. It does not cover specialized equipment required for and unique to a specific test or method of analysis. Items such as valves, fittings, piping/tubing, cooling coils and condensers, filters, pumps, sample containers, and packaging materials are included, but items such as sampling nozzles that are used for obtaining steam or water samples from their source and apparatus used in subsequent methods of test and analysis are excluded.

1.2 For information on specialized sampling equipment or tests, or both, or methods of analysis, reference should be made to the Annual Book of ASTM Standards relating to water.

1.3 The following safety hazards caveat pertains only to the test methods portion 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 . For specific safety precautions, see 4.2.2.