ASTM D5317-98(2011) - 1.5.2011
 
Significance and Use

Chlorinated phenoxyacid herbicides, and other organic acids are used extensively for weed control. Esters and salts of 2,4-D and silvex have been used as aquatic herbicides in lakes, streams, and irrigation canals. Phenoxy acid herbicides can be toxic even at low concentrations. For example, the 96 h, TLm for silvex is 2.4 mg/L for bluegills (1) . These reasons make apparent the need for a standard test method for such compounds in water.

 
1. Scope

1.1 This test method covers a gas chromatographic procedure for the quantitative determination of selected chlorinated acids and other acidic herbicides in water. Similar chemicals may also be determined by this test method, but it is the user's responsibility to verify the applicability of this test method to any compounds not listed in this scope. The acid form of the following compounds were interlaboratory tested using this test method, and the results were found acceptable:

 
2. Referenced Documents

D3370-25

Standard Practices for Sampling Water from Flowing Process Streams

D4210-89(1996)e1

Standard Practice for Intralaboratory Quality Control Procedures and a Discussion on Reporting Low-Level Data (Withdrawn 2002)

D5789-95

Standard Practice for Writing Quality Control Specifications for Standard Test Methods for Organic Constituents (Withdrawn 2002)

Method 515.1,

Revision 4.0, Methods for the Determination of Organic Compounds in Drinking Water EPA/600/4-88/039, 1989, available from Environmental Monitoring Systems Laboratory, U.S. Environmental Protection Agency, Cincinnati, OH 45268.

29 CFR 1910 OSHA

Safety and Health Standards, General Industry Available from U.S. Government Printing Office Superintendent of Documents, 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401.

D2777-21

Standard Practice for Determination of Precision and Bias of Applicable Test Methods of Committee D19 on Water

D1129-24

Standard Terminology Relating to Water

D1193-24

Standard Specification for Reagent Water

D3856-11

Standard Guide for Management Systems in Laboratories Engaged in Analysis of Water