ASTM D6234-13
Standard Test Method for Shake Extraction of Mining Waste by the Synthetic Precipitation Leaching Procedure

Standard No.

ASTM D6234-13

Release Date

2013

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D6234-13(2020)

Latest

ASTM D6234-13(2020)

Scope

4.1 This test method is intended as a means for obtaining an extract of mining waste. The extract may be used to estimate the release of certain inorganic constituents of the waste under the laboratory conditions described in this test method. The user is advised to minimize the holding time between sampling and testing if the waste is suspected to contain reactive sulfide minerals.

Note 3—This method is not intended to be used as a kinetic test to simulate weathering of mining wastes. For kinetic testing of mining wastes, refer to Test Method D5744 to determine release rates for constituents of interest. For static testing of metal mining ore and mining or mineral processing waste materials, refer to Test Method E1915.

4.2 The pH of the extraction fluid used in this test method is to reflect the pH of acidic precipitation in the geographic region in which the waste being tested is to be disposed (see 1.2).

4.3 An intent of this test method is for the final pH of the extract to reflect the interaction of the extractant with the buffering capacity of the waste.

4.4 This test method is not intended to provide an extract that is representative of the actual leachate produced from a waste in the field or to produce extracts to be used as the sole basis of engineering design. If the conditions of this test method are not suitable for the test material, USEPA Method 1312 or Test Method E2242 may be used.

4.5 This test method has not been demonstrated to simulate actual disposal site leaching conditions.

4.6 This test method produces extracts that are amenable to the determination of both major and minor (trace) inorganic constituents. When minor constituents are being determined, it is especially important that precautions be taken in sample storage and handling to avoid possible contamination of the samples.

4.7 This test method has been tested to determine its applicability to certain inorganic components in the waste. This test method has not been tested for applicability to organic substances, volatile matter (see Note 5), or biologically active samples. This test method has undergone limited testing to determine its reproducibility.

1.1 This test method covers a procedure for the shake leaching of mining waste containing at least 808201;% dry solids (≤208201;% moisture) in order to generate a solution to be used to determine the inorganic constituents leached under the specified testing conditions that conform to the synthetic precipitation leaching procedure (SPLP).

1.2 This test method calls for the shaking of a known weight of mining waste with acidic extraction fluid of a specified composition as well as the separation of the liquid phase for analysis. The pH of the extraction fluid is to reflect the pH of acidic precipitation in the geographic region in which the waste being tested is to be disposed.

Note 1—Possible sources of information concerning the pH of the precipitation in the geographic region of interest include state and federal environmental agencies, state universities, libraries, etc. pH values given in USEPA Method 1312, that are 4.2 east of the Mississip......

ASTM D6234-13 Referenced Document

• ASTM D1129 Standard Terminology Relating to Water
• ASTM D1193 Standard Specification for Reagent Water
• ASTM D2234/D2234M Standard Practice for Collection of a Gross Sample of Coal
• ASTM D2777 Standard Practice for Determination of Precision and Bias of Applicable Methods of Committee D-19 on Water
• ASTM D3370 Standard Practices for Sampling Water from Closed Conduits
• ASTM D3987 Standard Test Method for Shake Extraction of Solid Waste with Water
• ASTM D420 Standard Guide to Site Characterization for Engineering Design and Construction Purposes
• ASTM D5744 Standard Test Method for Accelerated Weathering of Solid Materials Using a Modified Humidity Cell
• ASTM D653 Standard Terminology Relating to Soil, Rock, and Contained Fluids
• ASTM D75 Standard Practice for Sampling Aggregates
• ASTM E1915 Standard Test Method for Analysis of Metal Bearing Ores and Related Materials by Combustion Infrared Absorption Spectrometry
• ASTM E2242 Standard Test Method for Column Percolation Extraction of Mine Rock by the Meteoric Water Mobility Procedure
• ASTM E691 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
• ASTM E877 Standard Practice for Sampling and Sample Preparation of Iron Ores and Related Materials

ASTM D6234-13 history

• 2020 ASTM D6234-13(2020) Standard Test Method for Shake Extraction of Mining Waste by the Synthetic Precipitation Leaching Procedure
• 2013 ASTM D6234-13 Standard Test Method for Shake Extraction of Mining Waste by the Synthetic Precipitation Leaching Procedure
• 1998 ASTM D6234-98(2007) Standard Test Method for Shake Extraction of Mining Waste by the Synthetic Precipitation Leaching Procedure
• 1998 ASTM D6234-98(2002) Standard Test Method for Shake Extraction of Mining Waste by the Synthetic Precipitation Leaching Procedure
• 1998 ASTM D6234-98 Standard Test Method for Shake Extraction of Mining Waste by the Synthetic Precipitation Leaching Procedure