1.1This practice guides the user in selection of procedures commonly used to measure depth in water bodies that are as follows:
| | Sections |
| Procedure A—Manual Measurement | 6 through 11 |
| Procedure B—Electronic Sonic-Echo Sounding | 12 through 13 |
| Procedure C—Electronic Nonacoustic Measurement | 14 through 15 |
The text specifies depth measuring terminology, describes measurement of depth by manual and electronic equipment, outlines specific uses of electronic sounders, and describes an electronic procedure for depth measurement other than using sonar.
1.2The references cited and listed at the end of this practice contain information that may help in the design of a high quality measurement program.
1.3The information provided on depth measurement is descriptive in nature and not intended to endorse any particular item of manufactured equipment or procedure.
1.4This practice pertains to depth measurement in quiescent or low-velocity flow. For depth measurement related to stream gauging, see Test Method D3858. For depth measurements related to reservoir surveys, see Guide D4581.
1.5The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.6This 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.7This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.