Conclusion
The presentation order of the coupons appears to have no effect on the determination of VRLs. Both a sequential presentation
from high to low concentration and a random presentation resulted in the same conclusions for VRL levels, thus confirming
the ruggedness of the VRL determination.
Richard Forsyth is a senior consultant with Hyde Engineering + Consulting, 6260 Lookout Rd., Suite 120, Boulder, CO 80301, tel. 303.530.4526,
fax 303.581.0839, richard.forsyth@hyde-ec.com
.
Submitted: Oct. 1, 2010. Accepted: Dec. 1, 2010.
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