1.1This guide covers the selection of procedures commonly used to establish a measurement of horizontal position during investigations of surface water bodies that are as follows:
| | Sections |
| Procedure A—Manual Measurement | 7 to 12 |
| Procedure B—Optical Measurement | 13 to 17 |
| Procedure C—Electronic Measurement | 18 to 27 |
1.1.1The narrative specifies horizontal positioning terminology and describes manual, optical, and electronic measuring equipment and techniques.
1.2The references cited contain information that may help in the design of a high quality measurement program.
1.3The information provided on horizontal positioning is descriptive in nature and not intended to endorse any particular item of manufactured equipment or procedure.
1.4This guide pertains to determining horizontal position of a depth measurement in quiescent or low velocity flow.
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.