B. Sample preservation procedure

Labeling tape

pH meter

Electrical conductivity meter

Clamp, large

Ring stand

Pipetter

Pipet tips: 1 mL, 5 mL

Polyethylene stirring rods

Polyethylene bottles: 60, 250, 500, 1,000 mL

Note: All plastic ware must be prewashed with a metal-free, nonionic

detergent solution, rinsed, soaked in 1 + 1 nitric acid for 24 hr, and

rerinsed in distilled-deionized (DDI) water.

DDI water conforming to ASTM Type II Water (ASTM D1193-99)

(ASTM 1999)

Ultrex nitric acid, concentrated

Ultrex sulfuric acid, concentrated

B. Sample preservation procedure.

a. Place two strips of labeling tape on each polyethylene sample collection

bottle. Consult the sample collection chart in Table D1, then pipette 0.5

mL DDI water and 0.5 ml concentrated Ultrex nitric acid per 100 mL of

leachate sample for metal analysis into the polyethylene bottle. For

TOC analysis, pipette 0.5 mL DDI water and 0.5 mL concentrated Ultrex

sulfuric acid into the collection bottle. Weigh the bottle and lid, and

record this weight on one strip of labeling tape.

b. On the other strip of tape, label each collection vessel with the sediment

identification, column leach apparatus number, sample number, and

parameter code. Suggested parameter codes are M = metals, C =

chloride, T = Total Organic Carbon, and PE = pH and electrical

c. Remove the lid, and securely cover each bottle with parafilm. Puncture

a small hole in the center of the parafilm with a pipette tip.

d. Attach a large clamp to a ring stand, and secure the collection bottle to

the clamp. Place the bottle under the column leach apparatus, tilting,

and elevating the bottle in such a manner that the end of the outlet tubing

D17

Appendix D Leachate Testing Procedures