Scope:

The characteristics of wastes are determined by the test method ASTM D5233. This test method is designed to provide an extract with a concentration of the target analyte that is typical of the projected release under the simulated scenario and may be compared to permitted concentration levels in waste disposal, treatment, or production operations. The results obtained from this method help in the chemical composition, research, and performance evaluation of materials. 

Procedure:

The ASTM D5233 test method is designed to detect the filtrate of the waste after filtration through a 0.6 to 0.8-m glass fiber filter. If the waste contains less than 0.5 percent dry solid material, the liquid phase is separated from the solid phase and stored for analysis later. The amount of extraction fluid equal to 20 times the weight of the solid phase and the alkalinity of the waste’s solid phase determines the extraction fluid. Filtration with a 0.6 to 0.8-m glass fiber filter separates the liquid extract from the solid phase following extraction.

Video 01: Batch extraction in solvent

Specimen Size:

Specimen size should be as per the requirements. In this ASTM D5233 test, approximately 100 g of solid phase samples are required for each extraction.

Data:

Final analyte concentration is determined by applying the formula where:

V1 = volume of the initial phase (filtrate, L),

C1 = concentration of the contaminant of concern in the initial phase (mg/L),

V2 = volume of the extract (L), and

C2 = concentration of the analyte of concern in the extract (mg/L).

Conclusion:

ASTM D5233 test method is specifically important for the quality assurance and durability check of materials extracted from wastes. A detailed analysis is performed and the final analyte concentration is determined.