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Stock E a uipment Company
A Unit of General Signal
Fe,m 6.96-50-9/B6 C-21
WHC-SD-W100-TI-003 Rev. 0
PROCEDURE 90110-0
2122 If the height or diameter of a given core specimen has
changed due to swelling, decomposition or any other affect,
the surface area will have changed and the volume of
leachant solution must be adjusted appropriately. In all
cases, the ratio of the volume of Ieachant solution to
surface area of the core specimen will be 10.0.
2.2Z3 Prior to immersion in the Ieachant solution, the specimen
will be attached to the container lid by the following
method.
The specimen will have a plastic fishnet tied around its
exterior surface. A length of dental floss will be used to
suspend the specimen in the Ieachant solution. The dental
floss will be attached to the container lid, and to the plastic
----- ----fishnet aroun d-the spe{:Slfler4 See Figure la and lb.
2.2 .2.4 The following procedure will be followed for the insertion
of the specimen into the leachant solution, and the storage
of each container for the appropriate time period.
--i. For each specimen, the appropriate amount of
Ieachant solution will be determined from the
Specimen Data Sheet.
2. The correct amount of leachant solution will be
placed into the leachant container.
3. The leachant container and cap will be labeled with
the following information.
a. Specimen label
b. Leachant solution (distilled water, sea water)
c. Volume of Ieachant solution (ml)
4. At the start of any given leaching period, the
specimen will be placed into the leachant solution.
The top of the specimen will be covered by the
leachant solution, whilc the bottom of the specimen
will-be suspendcd above the botcom of the Icachant
container, see Figure la and lb.
5. The leachant container will be capped and allowed to
remain undisturbed until the end of the leaching
period.
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