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WHC-SD-W100-TI-003 Rev. 0
which the compressive strength is measured to determine the effects of the
exposure. The WRAP 2A performance specification is fo r a minimum compressive
strength of 500 lbf/inZ following the 90-day immersion period.
2.3.7 Free Liquids
The regulations in 10 CFR 61 (NRC 1992) and DOE Order 5820.2A (DOE 1988)
prohibit the disposal of liquid ?ow-level waste and require that all
solidified liquids contain no more than 0.5% by volume of free liquids. The
ANS 55.1 Standard is the accepted method for determination of the amount of
free liquids in a waste form. The WRAP 2A waste form performance
specifications also require that the waste form have no more than 0.5% free
liquids.
2.3.8 Hazardous Characteristics
The RCRA land disposal restriction regulations ( 40 CFR 268 [EPA 1992])
prohibit land disposal of any waste that exhibits a hazardous characteristic.
The four hazardous waste characteristics are ignitibility, corrosivity,
reactivity, and toxicity. The tests used for determination of these
characteristics depend on the physical properties of the waste but generally
involve measurement of the flash point or autoignition point, the pH of the
waste or waste extract, and comparisons against reference oxidizing materials.
The toxicity characteristic is determined by using EPA Method 1311,
,_. Toxicity Characteristic Leaching Procedure (TCLP), to obtain an extract from
the waste form and by analyzing the extract for toxic constituents. The
WRAP 2A performance specification requires that the maximum allowable
concentrationsfor wasteform_TCLPextracts-be-below the limits stated in
40 CFR 268.41, Table CCWE.
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