ASTM: D5413A: Nonrecording water-level measurement devices (Test Method A)

Summary
Analytes
Revision
Data and Sites

Official Method Name

Standard Test Methods for Measurement of Water Levels in Open-Water Bodies

Current Revision

Reapproved 1997. Current edition approved May 15, 1993.

Media

WATER

Instrumentation

Nonrecording Water Level Gages

Method Subcategory

Physical

Method Source

ASTM

Citation

Annual Book of ASTM Standards, Section 11, Water and Environmental Technology, Volume 11.01, Water (I)

Brief Method Summary

This test method is usually applicable to conditions where continuous records of water level or discharge are not required. However, in some situations, daily or twice daily observations from a nonrecording water-level device can provide a satisfactory record of daily water levels or discharge. Water levels obtained by the nonrecording devices described in this test method can be used to calibrate recording water-level devices described in Test Methods B and C.
Devices included in this test method are of two general types: those that are read directly, such as a staff gage; and those that are read by measurement to the water surface from a fixed point, such as wire-weight, float-tape, electric-tape, point and hook gages.

Scope and Application

These test methods cover equipment and procedures used in obtaining water levels of rivers, lakes, and reservoirs or other water bodies. The procedures detailed in these test methods are widely used by those responsible for investigations of streams, lakes, reservoirs, and estuaries, for example, the U.S. Agricultural Research Service, the U.S. Army Corp of Engineers, and the U.S. Geological Survey

Applicable Concentration Range

None.

Interferences

None indicated.

Quality Control Requirements

Sample Handling

Maximum Holding Time

Relative Cost

Greater than $400

Sample Preparation Methods

This method has 1 analyte associated with it.

Analyte	Detection Level	Bias	Precision	Pct False Positive	Pct False Negative	Spiking Level
Water level(E-11994) Water level	N/A	N/A	N/A

Precision Descriptor Notes:	In direct reading devices, observational errors include ripple or wave effect of the water surface, distance from observer to gage, cleanliness and color contrast of the gage, angle of observation, light conditions, and observer's eyesight, including the use or non-use of binoculars or other visual aids. In contact gages, this includes the ripple or wave effect of the water surface, wind effect on measuring devices, distance to water surface from gage platforms, light conditions, and observer's eyesight.
Detection Level Note:	None.

Precision Descriptor Notes:

In direct reading devices, observational errors include ripple or wave effect of the water surface, distance from observer to gage, cleanliness and color contrast of the gage, angle of observation, light conditions, and observer's eyesight, including the use or non-use of binoculars or other visual aids. In contact gages, this includes the ripple or wave effect of the water surface, wind effect on measuring devices, distance to water surface from gage platforms, light conditions, and observer's eyesight.

Detection Level Note:

None.

Revision	PDF/Link
Reapproved 1997. Current edition approved May 15, 1993.

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ASTM: D5413A: Nonrecording water-level measurement devices (Test Method A)

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