USGS-OWQ: NFM 6.7.3.C: Turbidity, field determinaton by spectrophotometer

Summary
Analytes
Revision
Data and Sites

Official Method Name

Turbidity, Spectrophotometric Determination

Current Revision

Version 2.1, Sept. 2005

Media

WATER

Instrumentation

Spectroscopy (Colorimetry; Photometry)

Method Subcategory

Inorganic

Method Source

USGS-OWQ

Citation

National Field Manual for the Collection of Water-Quality Data: U.S. Geological Survey Techniques of Water-Resources Investigations, Book 9, Chaps. A1-A9, Chap. A6.7, "Turbidity"

Brief Method Summary

This method uses a field spectrophotometer to provide a relative measure of the sample turbidity. Turbidity is measured on a subsample of the source water.

Scope and Application

Applicable Concentration Range

Interferences

Quality Control Requirements

Sample Handling

Maximum Holding Time

Relative Cost

Unknown

Sample Preparation Methods

This method has 1 analyte associated with it.

Analyte	Detection Level	Bias	Precision	Pct False Positive	Pct False Negative	Spiking Level
Turbidity(E-10617) Turbidity Water Clarity	N/A	N/A	N/A

Precision Descriptor Notes:
Detection Level Note:	Detection limit depends on instrument and electrode capabilities.

Revision	PDF/Link
Version 2.1, Sept. 2005

The Water Quality Portal contains sample results from sites that use this method.

Download WQP data

Select data:

Sites only
Sample results only

File format:

Comma-separated
Tab-separated
MS Excel 2007+

Sites where this method was used

Loading Sites ...

USGS-OWQ: NFM 6.7.3.C: Turbidity, field determinaton by spectrophotometer

WHO WE ARE

LEGAL