ENVIRONMENTAL TESTING CATALOG SM 5310 C

DCLS Method

Total and disolved organic carbon, persulfate

Reference Method

SM 5310 C

Test Description

Following the removal of inorganic carbon, organic carbon is oxidized to carbon dioxide (CO2) in the presence of Persulfate, heat and Ultraviolet Light. The CO2 is then detected by a non-dispersive infrared detector.

Sample Collection

Collect approximately 40 ml of representative sample in a glass vial sealed with TFE-backed septa preserved with H2SO4 to < = pH 2.

Storage Guidelines

Samples must be cooled to <= 4 °C after collection, and preferably shipped to the lab within 24 hours. If samples will not be analyzed within 24 hours after collection, then store samples at <=4 °C for up to 28 days following collection.

Testing Group

Inorganics

Analyte

Total organic carbon (TOC)